442 Neljanda taseme kutseõppe esmaõpe (vv alates 01.09.2013)
1/0
19.03.2015
Vastuvõttu ei toimu, õppimine keelatud
A Description of work
A.1 Description of work
Keevitaja töötab põhiliselt metalltooteid ja -konstruktsioone valmistavas ettevõttes ning ehitus-, paigaldus-, hoolde- ja remonditöödel.
Keevitaja põhitöö on keevitustööde ettevalmistamine, tarindi koostamine vastavalt joonisele, keevisliidete teostamine ning järeltöötlus ja tulemuse kontroll. Töö... nõuab jooniste lugemise oskust, töötlemistehnoloogia ja materjalide omaduste tundmist.
Keevitaja kutsealal on välja töötatud kutsed kahel tasemel:
Keevitaja, tase 3
Keevitaja, tase 4
Käesolevas kutsestandardis on kirjeldatud 4. taseme keevitaja kutsealaseid kompetentse.
Selle taseme keevitaja koostab ja keevitab mitmesuguseid keevistooteid, detaile ning ehituskonstruktsioone. Vastutusrikkamate tööde (kontrolli nõudvad tooted) puhul konsulteerib ja teeb koostööd vahetu juhi või koordinaatori või meistriga.
4. taseme keevitaja kasutab oma töös järgmisi keevitusviise: käsikaarkeevitus (MMA 111), poolautomaatkeevitus (MIG 131, MAG 135, 136, 138) ja TIG-keevitus (141, 142).
Keevitaja 4. taseme kutse raames on võimalik omandada ka järgmisi piiratud pädevusega osakutseid:
Käsikaarkeevitaja, tase 4
Poolautomaatkeevitaja, tase 4
TIG-keevitaja, tase 4 MoreHide
A.2 Work units
A.2.1 Töökoha korraldamine, tootmis- ja abivahendite valimine ja ettevalmistamine
2.1.1 Tööjoonise, tööjuhendi ja tehnoloogilise kaardiga (WPS) tutvumine
2.1.2 Töövahendite valimine
2.1.3 Keevitusvahendite valimine
2.1.4 Keevitusseadmete seadistamine ja režiimi valimine
2.1.5 Nõuetekohase tööko...ha korraldamine
2.1.6 Isikukaitsevahendite valimine
A.2.2 Detailide ja koostude ettevalmistamine ja koostamine
2.2.1 Detailide ettevalmistamine ja kontrollimine
2.2.2 Koostude ülesseadmine keevitamiseks ja nende kontrollimine
A.2.3 Kvaliteedi kontrollimine ja defektide parandamine
2.3.1 Keevisõmbluste kontrollimine
2.3.2 Koostu kontrollimine
2.3.3 Defektide parandamine
2.3.4 Lõppkontrolli tegemine MoreHide
Elective areas of work
A.2.4 Käsikaarkeevitustööde tegemine ja detailide järeltöötlemine
2.4.1 Käsikaarkeevitustööde tegemine
2.4.2 Vahekontrolli tegemine
2.4.3 Valmis toote järeltöötlemine
A.2.5 Poolautomaatsete keevitustööde tegemine ja detailide järeltöötlemine
2.5.1 Poolautomaatsete keevitustööde tegemine
2.5.2... Vahekontrolli tegemine.
2.5.3 Valmis toote järeltöötlemine.
A.2.6 TIG-keevitamine ja detailide järeltöötlemine
2.6.1 Metallide keevitamine TIG-tehnoloogiat kasutades.
2.6.2 Vahekontrolli tegemine.
2.6.3 Valmis toote järeltöötlemine.
Keevitaja, tase 4 kutse sisaldab järgmisi osakutseid:
KÄSIKAARKEEVITAJA
A.2.1 Töökoha korraldamine, tootmis- ja abivahendite valimine ja ettevalmistamine
2.1.1 Tööjoonise, tööjuhendi ja tehnoloogilise kaardiga (WPS) tutvumine
2.1.2 Töövahendite valimine
2.1.3 Keevitusvahendite valimine
2.1.4 Keevitusseadmete seadistamine ja režiimi valimine
2.1.5 Nõuetekohase töökoha korraldamine
2.1.6 Isikukaitsevahendite valimine
A.2.2 Detailide ja koostude ettevalmistamine ja koostamine
2.2.1 Detailide ettevalmistamine ja kontrollimine
2.2.2 Koostude ülesseadmine keevitamiseks ja nende kontrollimine
A.2.3 Kvaliteedi kontroll ja defektide parandamine
2.3.1 Keevisõmbluste kontrollimine
2.3.2 Koostu kontrollimine
2.3.3 Defektide parandamine
2.3.4 Lõppkontrolli tegemine
A.2.4 Käsikaarkeevitustööde tegemine ja detailide järeltöötlemine
2.4.1 Käsikaarkeevitustööde tegemine
2.4.2 Vahekontrolli tegemine
2.4.3 Valmis toote järeltöötlemine
POOLAUTOMAATKEEVITAJA
A.2.1 Töökoha korraldamine, tootmis- ja abivahendite valimine ja ettevalmistamine
2.1.1 Tööjoonise, tööjuhendi ja tehnoloogilise kaardiga (WPS) tutvumine
2.1.2 Töövahendite valimine
2.1.3 Keevitusvahendite valimine
2.1.4 Keevitusseadmete seadistamine ja režiimi valimine
2.1.5 Nõuetekohase töökoha korraldamine
2.1.6 Isikukaitsevahendite valimine
A.2.2 Detailide ja koostude ettevalmistamine ja koostamine
2.2.1 Detailide ettevalmistamine ja kontrollimine
2.2.2 Koostude ülesseadmine keevitamiseks ja nende kontrollimine
A.2.3 Kvaliteedi kontroll ja defektide parandamine
2.3.1 Keevisõmbluste kontrollimine
2.3.2 Koostu kontrollimine
2.3.3 Defektide parandamine
2.3.4 Lõppkontrolli tegemine
A.2.5 Poolautomaatsete keevitustööde tegemine ja detailide järeltöötlemine
2.5.1 Poolautomaatsete keevitustööde tegemine
2.5.2 Vahekontrolli tegemine
2.5.3 Valmis toote järeltöötlemine
TIG-KEEVITAJA
A.2.1 Töökoha korraldamine, tootmis- ja abivahendite valimine ja ettevalmistamine
2.1.1 Tööjoonise, tööjuhendi ja tehnoloogilise kaardiga (WPS) tutvumine
2.1.2 Töövahendite valimine
2.1.3 Keevitusvahendite valimine
2.1.4 Keevitusseadmete seadistamine ja režiimi valimine
2.1.5 Nõuetekohase töökoha korraldamine
2.1.6 Isikukaitsevahendite valimine
A.2.2 Detailide ja koostude ettevalmistamine ja koostamine
2.2.1 Detailide ettevalmistamine ja kontrollimine
2.2.2 Koostude ülesseadmine keevitamiseks ja nende kontrollimine
A.2.3 Kvaliteedi kontrollimine ja defektide parandamine
2.3.1 Keevisõmbluste kontrollimine
2.3.2 Koostu kontrollimine
2.3.3 Defektide parandamine
2.3.4 Lõppkontrolli tegemine
A.2.6 TIG-keevitamine ja detailide järeltöötlemine
2.6.1 Metallide keevitamine TIG-tehnoloogiat kasutades
2.6.2 Vahekontrolli tegemine
2.6.3 Valmis toote järeltöötlemine
Keevitaja kutsete tööosade ja tööülesannete võrdlustabel on toodud kutsestandardi lisas 1. MoreHide
A.3 Work environment and specific nature of work
Keevitaja töötab nii sise- kui ka välistingimustes, tööaeg on üldjuhul fikseeritud, kuid sõltuvalt ettevõtte eripärast võib olla korraldatud ka vahetustega töötamine. Töö on mõõduka tempoga, tööülesanded vahelduvad. Keevitaja peab olema valmis töötama ebamugavas või sundasendis, taluma temperatuurik...õikumisi, kõrgusi, vibratsiooni, müra ja tolmu. Töö võib toimuda ohtlikes keskkondades, nt mahutites, ehitus- või tööstusobjektil kõrgustes jne. Ta peab tundma kutsealast ohutustehnikat, elektriseadmete kasutamisega kaasnevat ohutustehnikat, kasutama asjakohaseid kaitsevahendeid ning teadma keevitusega kaasnevaid kahjulikke toimeid inimorganismile (põletusoht, nägemiskahjustused jne).
Keevitamisel eralduvad gaasid ja töökeskkonnas olev kivi- ja metallitolm võivad esile kutsuda allergilisi reaktsioone. MoreHide
A.4 Tools
Keevitaja kasutab oma töös keevitus-, gaasilõike-, metallilõike- ja tõsteseadmeid, elektrilisi, mehaanilisi ja pneumaatilisi käsitööriistu (frees, meisel, haamer, käi jne) ning abivahendeid (rakised, pöördlauad, mehhaniseeritud keevitusseadmed, söeelektroodid jne) ja mõõteriistu (šabloonid, nurgik, ...mõõdulint, nihik jne).) MoreHide
A.5 Personal qualities required for work: abilities and characteristics
Keevitaja peab oskama oma tööd iseseisvalt planeerida ja olema valmis meeskonnatööks. Töö eeldab arenenud vastutustunnet, hoolikust ja täpsust, kuna töötatakse väärtuslike materjalidega.
Vajalik on ruumiline kujutlusvõime, hea koordinatsioon ja liigutuste täpsus, normaalne füüsiline vorm ja nägemi...ne, kontsentreerumisvõime ja püsivus. MoreHide
A.6 Professional preparation
4. taseme keevitajatel on üldjuhul erialane kutseharidus. Tööalane kompetentsus võib olla omandatud ka erialase täiendkoolituse ja/või praktilise töökogemusega.
Keevitaja, tase 4 kutse saamiseks peab taotleja tõendama kohustuslikud (B.2.1–B.2.3), läbivad (B.2.7–B.2.12) ja vähemalt kaks valitavat (kompetentside B.2.4 – B.2.6 hulgast) kompetentsi.
Käsikaarkeevitaja 4. taseme osakutse saamiseks tuleb taotlejal tõendada kompetentsid:
- kõik kohustuslikud ko...mpetentsid (B.2.1–B.2.3);
- kõik läbivad kompetentsid (B.2.7–B.2.12);
- kompetents B.2.4 Käsikaarkeevitustööde tegemine ja detailide järeltöötlemine.
Poolautomaatkeevitaja 4. taseme osakutse saamiseks tuleb taotlejal tõendada kompetentsid:
- kõik kohustuslikud kompetentsid (B.2.1–B.2.3);
- kõik läbivad kompetentsid (B.2.7–B.2.12);
- kompetents B.2.5 Poolautomaatkeevitustööde tegemine ja detailide järeltöötlemine.
TIG-keevitaja 4. taseme osakutse saamiseks tuleb taotlejal tõendada kompetentsid:
- kõik kohustuslikud kompetentsid (B.2.1 – B.2.3);
- kõik läbivad kompetentsid (B.2.7 – B.2.12);
- kompetents B.2.6 TIG-keevitamine ja detailide järeltöötlemine. MoreHide
B.2 Competences
Mandatory competences
Competence
EstQF Level
B.2.1
Organising the workplace and selecting and preparing production equipment and accessories
4
View competence
Performance indicators
1. Familiarises themselves with technical drawings, work instructions and the technological chart (WPS).
2. Chooses the necessary equipment, materials (assemblies, parts, elements, etc.), tools and accessories based on the nature of the work and production conditions. Chooses a welding method and type of welded joint based on the technical drawing and technological chart.
3. Chooses the necessary welding equipment (welding wire, welding electrode, protective gas, backing, etc.) based on the WPS.
4. Configures the welding machine to the mode specified in the WPS and assesses the conformity of the weld on the sample part.
5. Organises the workplace in their work stage as required and in accordance with fire safety requirements before commencing work. Removes any hindering, excessive or flammable items from the vicinity of the workplace. Covers flammable surfaces in the surrounding area with a suitable cover material.
6. Ensures that they have all of the required personal protective equipment and that it is in working order before commencing work.
Knowledge:
a) equipment and accessories used in welding;
b) construction and operating principles of welding current sources;
c) materials;
d) properties of metals and their alloys;
e) markings of welding and base materials;
f) properties, markings and handling of welding gases;
g) flame-cutting equipment and its operation;
h) welding modes;
i) welding terminology;
j) weld markings on technical drawings;
k) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
l) WPS (Welding Procedure Specification);
m) principles of standard EN-3834 of quality requirements for welding work;
n) standards of welder qualifications.
B.2.2
Preparation and construction of parts and assemblies
4
View competence
Performance indicators
1. Prepares parts for welding – cleans and, if necessary, chamfers the edges to be welded, using the appropriate methods (e.g. manually or mechanically). Preheats parts based on the WPS and work instructions. Measures the parts to ensure that their measurements comply with the technical drawing.
2. Constructs assemblies (using spot or tack welding) based on the technical drawing and the WPS and checks the compliance of the assembly to the drawing. Fixes the assemblies using fixtures, if necessary.
Knowledge:
a) flame-cutting equipment and its operation;
b) general knowledge of flame-welding and relevant equipment;
c) joint types and edge shapes;
d) meanings of symbols on technical drawings;
e) deformation of parts and change of dimensions during welding;
f) methods and equipment for checking measurements;
g) part imperfections;
h) chamfering equipment and its operating principles;
i) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
j) general knowledge of preheating parts;
k) quality levels for imperfections (EVS-EN-ISO 5817).
B.2.3
Quality control and repairing imperfections
3
View competence
Performance indicators
1. Visually checks the welds they have made and ensures that they comply with the requirements of the technical drawing.
2. Checks and measures the assembly and ensures that it complies with the technical drawing and given requirements.
3. Repairs weld imperfections and form deviations in the assembly in the course of the inspection.
4. After repairing the imperfections, conducts a final check of the welds and the assembly and ensures that they comply with standards and quality requirements.
Knowledge:
a) causes of weld imperfections and ways of preventing them;
b) causes of form deviations in the assembly and ways of preventing and eliminating them;
c) quality control methods of welds: destructive testing methods (break, tensile, bend and other tests);
d) quality control methods of welds: non-destructive testing methods (visual, penetrant, magnetic particle, X-ray, ultrasound tests, etc.);
e) control measurement equipment (templates, ruler and calliper) and their principles of use;
f) imperfections characteristic of welding processes, their prevention and their repair;
g) quality levels for imperfections (EVS-EN-ISO 5817).
Competences related to partial occupational qualification
Käsikaarkeevitaja, tase 4
EstQF Level: 4
Competence
EstQF Level
B.2.3
Quality control and repairing imperfections
3
View competence
Performance indicators
1. Visually checks the welds they have made and ensures that they comply with the requirements of the technical drawing.
2. Checks and measures the assembly and ensures that it complies with the technical drawing and given requirements.
3. Repairs weld imperfections and form deviations in the assembly in the course of the inspection.
4. After repairing the imperfections, conducts a final check of the welds and the assembly and ensures that they comply with standards and quality requirements.
Knowledge:
a) causes of weld imperfections and ways of preventing them;
b) causes of form deviations in the assembly and ways of preventing and eliminating them;
c) quality control methods of welds: destructive testing methods (break, tensile, bend and other tests);
d) quality control methods of welds: non-destructive testing methods (visual, penetrant, magnetic particle, X-ray, ultrasound tests, etc.);
e) control measurement equipment (templates, ruler and calliper) and their principles of use;
f) imperfections characteristic of welding processes, their prevention and their repair;
g) quality levels for imperfections (EVS-EN-ISO 5817).
B.2.4
Manual metal arc welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC and PF and butt-welds in positions PA, PC and PF. Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies by clearing surfaces of spatter, slag, etc. Cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in manual metal arc welding;
f) construction and operating principles of welding current sources;
g) markings of welding and base materials;
h) properties, markings and handling of welding gases;
i) flame-cutting equipment and its operation;
j) modes of wire welding;
k) weld markings on technical drawings;
l) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
m) specificities of welding thick parts;
n) ways of preheating metals and measuring the temperature, the effect of cooling time;
o) basics of heat treatment of metals.
B.2.1
Organising the workplace and selecting and preparing production equipment and accessories
4
View competence
Performance indicators
1. Familiarises themselves with technical drawings, work instructions and the technological chart (WPS).
2. Chooses the necessary equipment, materials (assemblies, parts, elements, etc.), tools and accessories based on the nature of the work and production conditions. Chooses a welding method and type of welded joint based on the technical drawing and technological chart.
3. Chooses the necessary welding equipment (welding wire, welding electrode, protective gas, backing, etc.) based on the WPS.
4. Configures the welding machine to the mode specified in the WPS and assesses the conformity of the weld on the sample part.
5. Organises the workplace in their work stage as required and in accordance with fire safety requirements before commencing work. Removes any hindering, excessive or flammable items from the vicinity of the workplace. Covers flammable surfaces in the surrounding area with a suitable cover material.
6. Ensures that they have all of the required personal protective equipment and that it is in working order before commencing work.
Knowledge:
a) equipment and accessories used in welding;
b) construction and operating principles of welding current sources;
c) materials;
d) properties of metals and their alloys;
e) markings of welding and base materials;
f) properties, markings and handling of welding gases;
g) flame-cutting equipment and its operation;
h) welding modes;
i) welding terminology;
j) weld markings on technical drawings;
k) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
l) WPS (Welding Procedure Specification);
m) principles of standard EN-3834 of quality requirements for welding work;
n) standards of welder qualifications.
B.2.2
Preparation and construction of parts and assemblies
4
View competence
Performance indicators
1. Prepares parts for welding – cleans and, if necessary, chamfers the edges to be welded, using the appropriate methods (e.g. manually or mechanically). Preheats parts based on the WPS and work instructions. Measures the parts to ensure that their measurements comply with the technical drawing.
2. Constructs assemblies (using spot or tack welding) based on the technical drawing and the WPS and checks the compliance of the assembly to the drawing. Fixes the assemblies using fixtures, if necessary.
Knowledge:
a) flame-cutting equipment and its operation;
b) general knowledge of flame-welding and relevant equipment;
c) joint types and edge shapes;
d) meanings of symbols on technical drawings;
e) deformation of parts and change of dimensions during welding;
f) methods and equipment for checking measurements;
g) part imperfections;
h) chamfering equipment and its operating principles;
i) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
j) general knowledge of preheating parts;
k) quality levels for imperfections (EVS-EN-ISO 5817).
Poolautomaatkeevitaja, tase 4
EstQF Level: 4
Competence
EstQF Level
B.2.3
Quality control and repairing imperfections
3
View competence
Performance indicators
1. Visually checks the welds they have made and ensures that they comply with the requirements of the technical drawing.
2. Checks and measures the assembly and ensures that it complies with the technical drawing and given requirements.
3. Repairs weld imperfections and form deviations in the assembly in the course of the inspection.
4. After repairing the imperfections, conducts a final check of the welds and the assembly and ensures that they comply with standards and quality requirements.
Knowledge:
a) causes of weld imperfections and ways of preventing them;
b) causes of form deviations in the assembly and ways of preventing and eliminating them;
c) quality control methods of welds: destructive testing methods (break, tensile, bend and other tests);
d) quality control methods of welds: non-destructive testing methods (visual, penetrant, magnetic particle, X-ray, ultrasound tests, etc.);
e) control measurement equipment (templates, ruler and calliper) and their principles of use;
f) imperfections characteristic of welding processes, their prevention and their repair;
g) quality levels for imperfections (EVS-EN-ISO 5817).
B.2.5
Semi-automatic welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC and PF and butt-welds in positions PA, PC and PF using the MIG or MAG method. Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Checks the interpass temperature in the course of the work. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies by clearing surfaces of spatter, slag, etc. Cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in MAG welding;
f) equipment and accessories used in MIG welding;
g) construction and operating principles of welding current sources;
h) markings of welding and base materials;
i) properties, markings and handling of welding gases used in MIG welding;
j) properties, markings and handling of welding gases used in MAG welding;
k) flame- and plasma-cutting equipment and their operation;
l) modes of wire welding;
m) weld markings on technical drawings;
n) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
o) cleaning and passivating welds of stainless steel.
B.2.1
Organising the workplace and selecting and preparing production equipment and accessories
4
View competence
Performance indicators
1. Familiarises themselves with technical drawings, work instructions and the technological chart (WPS).
2. Chooses the necessary equipment, materials (assemblies, parts, elements, etc.), tools and accessories based on the nature of the work and production conditions. Chooses a welding method and type of welded joint based on the technical drawing and technological chart.
3. Chooses the necessary welding equipment (welding wire, welding electrode, protective gas, backing, etc.) based on the WPS.
4. Configures the welding machine to the mode specified in the WPS and assesses the conformity of the weld on the sample part.
5. Organises the workplace in their work stage as required and in accordance with fire safety requirements before commencing work. Removes any hindering, excessive or flammable items from the vicinity of the workplace. Covers flammable surfaces in the surrounding area with a suitable cover material.
6. Ensures that they have all of the required personal protective equipment and that it is in working order before commencing work.
Knowledge:
a) equipment and accessories used in welding;
b) construction and operating principles of welding current sources;
c) materials;
d) properties of metals and their alloys;
e) markings of welding and base materials;
f) properties, markings and handling of welding gases;
g) flame-cutting equipment and its operation;
h) welding modes;
i) welding terminology;
j) weld markings on technical drawings;
k) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
l) WPS (Welding Procedure Specification);
m) principles of standard EN-3834 of quality requirements for welding work;
n) standards of welder qualifications.
B.2.2
Preparation and construction of parts and assemblies
4
View competence
Performance indicators
1. Prepares parts for welding – cleans and, if necessary, chamfers the edges to be welded, using the appropriate methods (e.g. manually or mechanically). Preheats parts based on the WPS and work instructions. Measures the parts to ensure that their measurements comply with the technical drawing.
2. Constructs assemblies (using spot or tack welding) based on the technical drawing and the WPS and checks the compliance of the assembly to the drawing. Fixes the assemblies using fixtures, if necessary.
Knowledge:
a) flame-cutting equipment and its operation;
b) general knowledge of flame-welding and relevant equipment;
c) joint types and edge shapes;
d) meanings of symbols on technical drawings;
e) deformation of parts and change of dimensions during welding;
f) methods and equipment for checking measurements;
g) part imperfections;
h) chamfering equipment and its operating principles;
i) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
j) general knowledge of preheating parts;
k) quality levels for imperfections (EVS-EN-ISO 5817).
TIG-keevitaja, tase 4
EstQF Level: 4
Competence
EstQF Level
B.2.3
Quality control and repairing imperfections
3
View competence
Performance indicators
1. Visually checks the welds they have made and ensures that they comply with the requirements of the technical drawing.
2. Checks and measures the assembly and ensures that it complies with the technical drawing and given requirements.
3. Repairs weld imperfections and form deviations in the assembly in the course of the inspection.
4. After repairing the imperfections, conducts a final check of the welds and the assembly and ensures that they comply with standards and quality requirements.
Knowledge:
a) causes of weld imperfections and ways of preventing them;
b) causes of form deviations in the assembly and ways of preventing and eliminating them;
c) quality control methods of welds: destructive testing methods (break, tensile, bend and other tests);
d) quality control methods of welds: non-destructive testing methods (visual, penetrant, magnetic particle, X-ray, ultrasound tests, etc.);
e) control measurement equipment (templates, ruler and calliper) and their principles of use;
f) imperfections characteristic of welding processes, their prevention and their repair;
g) quality levels for imperfections (EVS-EN-ISO 5817).
B.2.6
TIG welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC, and PF, butt-welds in positions PA, PC and PF and tube-seams in position PA (rotating tube). Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Checks the interpass temperature in the course of the work. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies and cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in TIG welding;
f) construction and operating principles of welding current sources;
g) markings of welding and base materials;
h) properties, markings and handling of welding gases;
i) flame- and plasma-cutting equipment and their operation;
j) modes of wire welding;
k) weld markings on technical drawings;
l) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
m) welding with backing, including gas backing;
n) use of tungsten electrodes.
B.2.1
Organising the workplace and selecting and preparing production equipment and accessories
4
View competence
Performance indicators
1. Familiarises themselves with technical drawings, work instructions and the technological chart (WPS).
2. Chooses the necessary equipment, materials (assemblies, parts, elements, etc.), tools and accessories based on the nature of the work and production conditions. Chooses a welding method and type of welded joint based on the technical drawing and technological chart.
3. Chooses the necessary welding equipment (welding wire, welding electrode, protective gas, backing, etc.) based on the WPS.
4. Configures the welding machine to the mode specified in the WPS and assesses the conformity of the weld on the sample part.
5. Organises the workplace in their work stage as required and in accordance with fire safety requirements before commencing work. Removes any hindering, excessive or flammable items from the vicinity of the workplace. Covers flammable surfaces in the surrounding area with a suitable cover material.
6. Ensures that they have all of the required personal protective equipment and that it is in working order before commencing work.
Knowledge:
a) equipment and accessories used in welding;
b) construction and operating principles of welding current sources;
c) materials;
d) properties of metals and their alloys;
e) markings of welding and base materials;
f) properties, markings and handling of welding gases;
g) flame-cutting equipment and its operation;
h) welding modes;
i) welding terminology;
j) weld markings on technical drawings;
k) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
l) WPS (Welding Procedure Specification);
m) principles of standard EN-3834 of quality requirements for welding work;
n) standards of welder qualifications.
B.2.2
Preparation and construction of parts and assemblies
4
View competence
Performance indicators
1. Prepares parts for welding – cleans and, if necessary, chamfers the edges to be welded, using the appropriate methods (e.g. manually or mechanically). Preheats parts based on the WPS and work instructions. Measures the parts to ensure that their measurements comply with the technical drawing.
2. Constructs assemblies (using spot or tack welding) based on the technical drawing and the WPS and checks the compliance of the assembly to the drawing. Fixes the assemblies using fixtures, if necessary.
Knowledge:
a) flame-cutting equipment and its operation;
b) general knowledge of flame-welding and relevant equipment;
c) joint types and edge shapes;
d) meanings of symbols on technical drawings;
e) deformation of parts and change of dimensions during welding;
f) methods and equipment for checking measurements;
g) part imperfections;
h) chamfering equipment and its operating principles;
i) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, etc.);
j) general knowledge of preheating parts;
k) quality levels for imperfections (EVS-EN-ISO 5817).
Optional Competences
Competence
EstQF Level
B.2.4
Manual metal arc welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC and PF and butt-welds in positions PA, PC and PF. Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies by clearing surfaces of spatter, slag, etc. Cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in manual metal arc welding;
f) construction and operating principles of welding current sources;
g) markings of welding and base materials;
h) properties, markings and handling of welding gases;
i) flame-cutting equipment and its operation;
j) modes of wire welding;
k) weld markings on technical drawings;
l) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
m) specificities of welding thick parts;
n) ways of preheating metals and measuring the temperature, the effect of cooling time;
o) basics of heat treatment of metals.
B.2.5
Semi-automatic welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC and PF and butt-welds in positions PA, PC and PF using the MIG or MAG method. Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Checks the interpass temperature in the course of the work. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies by clearing surfaces of spatter, slag, etc. Cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in MAG welding;
f) equipment and accessories used in MIG welding;
g) construction and operating principles of welding current sources;
h) markings of welding and base materials;
i) properties, markings and handling of welding gases used in MIG welding;
j) properties, markings and handling of welding gases used in MAG welding;
k) flame- and plasma-cutting equipment and their operation;
l) modes of wire welding;
m) weld markings on technical drawings;
n) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
o) cleaning and passivating welds of stainless steel.
B.2.6
TIG welding and post-processing of parts
4
View competence
Performance indicators
1. Fillet-welds steel plates in positions PA, PB, PC, and PF, butt-welds in positions PA, PC and PF and tube-seams in position PA (rotating tube). Does this based on technical drawings and/or the WPS and at level B. Cleans the edges of the filling run welds manually or mechanically, if necessary.
2. Checks the interpass temperature in the course of the work. Ensures with a visual check and using the appropriate measuring equipment that the welds are faultless (without pores, cracks, etc.). Repairs any imperfections.
3. Post-processes the finished assemblies and cleans the welds.
Knowledge:
a) properties of metals and their alloys;
b) ways of decreasing deformations;
c) weldability, heat input, preheating and post-heating of metals;
d) preparations for welding parts and structures (constructions);
e) equipment and accessories used in TIG welding;
f) construction and operating principles of welding current sources;
g) markings of welding and base materials;
h) properties, markings and handling of welding gases;
i) flame- and plasma-cutting equipment and their operation;
j) modes of wire welding;
k) weld markings on technical drawings;
l) safety requirements (correct work methods, principles of providing first aid, main requirements of working environment, fire and electrical safety requirements, etc.);
m) welding with backing, including gas backing;
n) use of tungsten electrodes.
Recurring competences
Competence
EstQF Level
B.2.7
Following work instructions and technology and quality requirements
3
View competence
Performance indicators
1. Uses all acquired field-specific knowledge and skills to achieve their professional goals.
2. Observes quality requirements when making products.
3. Understands and is able to assess the possible consequences of low-quality work. Pays heed to deadlines and technological manuals.
B.2.8
Töötervishoiu- ja tööohutusnõuete järgimine
3
View competence
Tegevusnäitajad:
1. Vältimaks tööõnnetusi järgib töö planeerimisel, töökoha ettevalmistamisel, töötades ja töökoha korrastamisel rangelt töötervishoiu- ja tööohutusnõudeid.
2. Õnnetusjuhtumi korral annab vältimatut abi, kutsub professionaalse abi ja teatab õnnetusjuhtumist vahetule juhile või tööandjale.
B.2.9
Participation in team work
4
View competence
Performance indicators
1. Participates in teamwork. Is cooperative, shares with others all information that is necessary and useful for work and works towards achieving the best common result.
2. Has the skill and courage to present and defend their opinions in a well-argued way and to present ideas and suggestions for improving work.
3. Takes employees doing other work into account when working.
B.2.10
Adjusting to changing conditions
3
View competence
Performance indicators
1. Can adjust to changing work conditions.
2. Analyses their activities and can find appropriate information to perform their duties and solve work-related problems.
B.2.11
Participation in additional training
3
View competence
Performance indicators
1. Acquires new duties, methods and techniques quickly.
2. Uses opportunities for self-improvement and to upgrade their skills and takes part in in-service training.
B.2.12
Töövahendite kasutamine ja hoiustamine
3
View competence
Tegevusnäitajad:
1. Kasutab kõiki töövahendeid ja seadmeid heaperemehelikult, korrastab ja puhastab töös kasutatavaid töövahendeid, seadmeid ja kaitsevahendeid regulaarselt, järgides nende kasutus- ja hooldusjuhendeid.
Hindamismeetod(id):
Läbivaid kompetentse hinnatakse integreeritult kõigi teiste kutsestandardis toodud kompetentside hindamisega.
C General information and Annexes
Designation of occupational qualification standard in register:
10-16092014-1.5/6k
Field of occupational activity:
Engineering, Manufacturing and Processing
Occupational Qualification Council:
Engineering, Metal and Machine Industry
No. of decision of Occupational Qualification Council:
9
Date of decision of Occupational Qualification Council:
16.09.2014
EstQF level:
4
Reference to European Qualifications Framework (EQF):
International Standard Classification of Occupations:
7 Craft and Related Trades Workers72 Metal, Machinery and Related Trades Workers721 Sheet and Structural Metal Workers, Moulders and Welders, and Related Workers7212 Welders and Flame Cutters
ISCED Fields of Education and Training (ISCED-F 2013):
07 Engineering, manufacturing and construction071 Engineering and engineering trades0715 Mechanics and metal trades
Statistical Classification of Economic Activities in the European Community (NACE):
C MANUFACTURING25 Manufacture of fabricated metal products, except machinery and equipment