The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to interpret specifications and apply in detail drawings for fabricated sheet metal products.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Specifically the candidate must be able to:

work within typical site/teamwork structures and methods

apply worksite communication procedures

comply with organisational policies and procedures, including quality requirements

participate in work meetings

comply with quality requirements

use industry terminology

apply appropriate safety procedures

interpret and apply specifications for fabricated products, and produce detail drawings according to industry standards and conventions.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with drafting or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways, including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Required skills

Required skills include:

literacy skills sufficient to read and interpret instructions, relevant codes of practice and specifications for drawing work

using computer technologies and navigating software

numeracy skills sufficient to interpret technical information and conduct mathematical problem solving as required in the scope of this unit

using and maintaining drawing equipment

applying spatial principles to achieve scale and proportion

interpersonal skills to consult with other disciplines

applying drawing techniques and conventions to inform fabrication

applying symbols, schedules and legends to the drawing

arranging the views in a logical manner and in accordance with AS 1100.101–1992 Technical drawing – General principles

correctly using line thickness and construction to identify parts

using engineering and manufacturer catalogues, tables, standards and specifications

applying surface texture symbols to comply to engineer’s requirements

Required knowledge

Required knowledge includes:

relevant codes of practice

industry standards, drawing symbols and conventions

OHS requirements

general knowledge of different approaches to drawing

features and uses of materials and components used in sheet metal fabricated products

characteristics of sheet metal and implications for drawing

techniques used to fabricate sheet metal products

Fabrication techniques

Fabrication techniques include:

joining techniques:

spigots

flanges

mild steel angles

weld

braze

solder

seal

bolt

cutting methods:

thermal and mechanical cutting

forming and shaping of plate, sheet and tubular ferrous and non-ferrous metal

folding and unfolding

Materials

Materials may include:

mild steel

stainless steel

Drawing details

Drawing details may include:

base faces, contour flanges and contour rolls

secondary faces, contour flanges and contour rolls

sheet metal parameters

flanges

hems, folds and bends

corner rounds and chamfers

sheet metal cuts (holes, cuts and punch features)

corner seams (seams and miters)

flat patterns

lofted flanges

rips

unfolding and refolding