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Demonstrate and apply knowledge of intermediate heavy fabrication
trade practice
Level
3
Credits
10
Purpose
This unit standard is for use in training of fabrication trades and covers heavy
fabrication trade practice at an intermediate level.
People credited with this unit standard are able to: demonstrate knowledge of
intermediate heavy fabrication trade practice; prepare for fabrication;
fabricate objects for the heavy fabrication industry; and care for and maintain
fabrication workplace, machines, and equipment.
Subfield
Mechanical Engineering
Domain
Engineering - Fabrication
Status
Registered
Status date
17 July 2009
Date version published
17 July 2009
Planned review date
31 December 2014
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0013
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
References
Health and Safety in Employment Act 1992.
Accident Compensation Corporation and Department of Labour. Metal Industry
Guidelines for Safe Work. Wellington: ACC, 2007. Available from
http://www.acc.co.nz.
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2
Definitions
Intermediate heavy fabrication trade practice – trade knowledge and practical skills
expected by industry of a typical second or third year heavy fabrication apprentice.
This includes the ability to produce basic objects as defined by the range in
element 3.
Industry practice – safe and sound practices generally accepted by competent trade
persons within the fabrication industry.
Job specifications – instructions relevant to the safe completion of the specific task,
such as technical specifications, assembly instructions, drawings, parts lists, standards,
codes of practice, test and commissioning procedures, and verbal instructions.
Safety guidelines – guidelines for the safe operation of machinery and tools, such as
those listed in the references, as well as guidelines for specific machines in workshops.
Worksite procedures – operational procedures put in place by the candidate’s
employer. These include site safety procedures, equipment operating procedures,
job procedures, quality assurance, and procedures for the handling and disposal of
materials and waste.
3
Patterns
For fabrication purposes it would be useful if patterns developed in Unit 25704, Develop
fabrication patterns for simple three-dimensional objects, were used.
4
Range
a Materials must be of 3mm or greater thickness.
b Typical tools and equipment may include but are not limited to – files, hacksaws,
taps, dies, reamers, hammers, drills, callipers, squares, dividers, rules,
protractors, radius and beam gauges, tape measures, straight edges, combination
sets, chalk line, trammels, punches, angle meters, clamps, spanners, screw
drivers, Allen keys.
c Machinery types may include but are not limited to – grinders, saws, drilling
machines, welders, metal bending and rolling machines, hole punches, metal
cutting machines, riveting tools.
Elements and performance criteria
Element 1
Demonstrate knowledge of intermediate heavy fabrication trade practice.
Performance criteria
1.1
Fabrication processes are described in accordance with industry practice.
Range
fabrication processes – laying out, marking off, cutting, joining,
shaping, assembling, use of jigs and fixtures.
1.2
Principles of operation of machinery used in fabrication are described in
accordance with safety guidelines.
1.3
Potential hazards associated with the use of machinery are described in
accordance with industry practice and safety guidelines.
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1.4
Metals are compared from the point of view of suitability for fabrication.
Range
1.5
Quality control procedures used in fabrication to ensure that the finished
product meets specifications are identified.
Range
1.6
metals – steel sheet, structural steel, stainless steel sheet,
aluminium.
check of – assembly, orientation, measurement, pressure test,
surface finish, labelling, pre-camber.
Non-destructive testing principles are described in accordance with industry
practice.
Range
visual examination, dimensional checks, penetrant inspection,
magnetic particle inspection.
Element 2
Prepare for fabrication.
Performance criteria
2.1
Job specifications are interpreted and the work is planned in accordance with
industry practice.
2.2
Machines and equipment are selected and their operating procedures
determined in accordance with industry practice.
2.3
Materials are selected in accordance with job specifications.
2.4
Tools are identified and their fitness for use is confirmed in accordance with
industry practice and safety guidelines.
2.5
Fabrication and assembly allowances are calculated and applied in accordance
with industry practice.
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Element 3
Fabricate basic objects for the heavy fabrication industry.
Range
basic objects – four simple objects, each based on two or more of cylindrical,
pyramidal, conical, square, or rectangular shapes; one assembly incorporating
at least two of the simple objects;
materials must include at least – two different metals; two metal thicknesses
3 mm minimum, including plate; two structural shapes (e.g. flat bar, rod, pipe,
rectangular hollow section, channel, angle, etc).
Performance criteria
3.1
Fabrications demonstrate use of fabrication processes in accordance with
industry practice.
Range
fabrication processes – laying out, marking including application of
fabrication allowances, cutting, forming, assembling, use of jigs
and machine fixtures.
3.2
Safe use of fabrication machinery, equipment and tools, is demonstrated in
accordance with industry practice and safety guidelines.
3.3
Fabricated objects are inspected and measured for compliance with job
specifications, and any deviations identified.
Element 4
Care for and maintain fabrication workplace, machines, and equipment.
Performance criteria
4.1
Routine checks, adjustments, and lubrication are carried out in accordance with
machine operating procedures and worksite procedures.
4.2
Machines and equipment are maintained in clean and safe condition and ready
for next use.
4.3
Unusable tools and equipment are reported to the supervisor.
4.4
Waste materials are disposed of and unused materials stored in accordance
with worksite procedures.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
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Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Comments on this unit standard
Please contact Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016