NZQA Expiring unit standard
914 version 6
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Title
Metal-arc gas shield (MIG) weld automotive components
Level
3
Credits
4
Purpose
This unit standard is for people in the automotive service
industries. People credited with this unit standard are able to:
demonstrate knowledge of the metal-arc gas shielded (MIG)
welding process; and weld automotive components on and off
the vehicle using the MIG welding process.
Classification
Motor Industry > Automotive Workshop Engineering
Available grade
Achieved
Explanatory notes
The following legislation, regulations, and their amendments are required to be consulted
and followed where applicable:
Health and Safety in Employment Act, 1992;
Transport (Vehicle Standards) Regulations, 1990.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the metal-arc gas shielded (MIG) welding process.
Evidence requirements
1.1
The principles of the MIG operation are described according to manufacturer’s
manual description.
Range
1.2
producing heat for welding, the wire drive system operation,
transferring the current from the power source and producing the
arc, gas shielding.
The advantages of the MIG welding are identified.
Range
range of metals, penetration, versatility of use, visible arc, weld
appearance, welding speed, operator ease of use, heat effect
zone.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.3
The equipment required for MIG welding is described according to
manufacturer’s manual description.
Range
1.4
power source, welding gun, wire feeding unit, controls and leads,
shielding gas and associated system, electrode wire.
The MIG welding procedure is described according to manufacturer’s manual
description.
Range
1.5
914 version 6
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stick-out length, travel speed, nozzle angle.
Welding faults and their causes are identified.
Range
undercutting, lack of penetration, lack of fusion, porosity,
excessive spatter, irregular weld shape.
Outcome 2
Weld automotive components on and off the vehicle using the MIG welding process.
Range
exhaust pipe, sheet steel.
Evidence requirements
2.1
Safety precautions are followed throughout the MIG welding operation.
Range
safety of the operator, the equipment, nearby personnel.
2.2
Working precautions are taken when welding so that no damage occurs to the
vehicle's electronic systems as a result.
2.3
The components are prepared for welding.
Range
removal of contaminants from the surface to be welded, abutting
ends square, suitable gap between the joint edges, components
positioned in situ.
2.4
Heat shielding of adjacent vehicle or machine components is carried out that
prevents any damage and risk of fire and explosion.
2.5
The components are welded in position.
Range
2.6
on the vehicle, off the vehicle;
safety precautions taken, adjustment of equipment, setting up the
plant, full penetration, no undercutting, width and height of
deposited metal, no leakage occurring through the weld,
appearance of finished job.
The welding equipment is stored safely after use.
Range
prevention of damage to equipment and injury to people.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
914 version 6
Page 3 of 3
Replacement information
This unit standard and unit standard 5771 have been
replaced by unit standard 23992.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
29 October 1993
31 December 2016
Review
2
4 October 1996
31 December 2016
Review
3
26 February 1999
31 December 2016
Review
4
26 November 2007
31 December 2020
Rollover
5
19 November 2010
31 December 2020
Rollover
6
22 August 2014
31 December 2020
Consent and Moderation Requirements (CMR) reference
0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016