MEM12007
Mark off/out structural fabrications and shapes


Application

This unit of competency been developed for engineering tradesperson - fabrication apprenticeship training and the recognition of trade-level skills in mark off/out of structural fabrications and shapes.

It applies to the marking off/out of general fabrications and shapes to specified measurements, tolerances and shapes using appropriate tools and equipment. Templates and patterns are produced as required.

Skills covered by this unit are generally applied in occupational and work situations associated with steel fabrication, boiler making or sheet metal work.

In a marine setting, it includes basic lofting/set out for construction of marine vessels and includes stem and transom development and use of tables of offsets that reflect chine and hull configuration. This includes lofting surfaces, straight edges, string lines, French curves and templates and marking out techniques apply to a range of materials and shapes.

Where more extensive lofting practices are required unit MEM09021 Interpret and produce drawings of curved 3-D shapes should also be selected.

Where marking out of general engineering components is required unit MEM12006 Mark off/out (general engineering) should also be selected.

Where the selection and use of tools is required unit MEM18001 Use hand tools and unit MEM18002 Use power tools/hand held operations, should also be selected as appropriate.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Band: A

Unit Weight: 4


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Determine job requirements

1.1

Follow standard operating procedures (SOPs)

1.2

Comply with work health and safety (WHS) requirements at all times

1.3

Use appropriate personal protective equipment (PPE) in accordance with SOPs

1.4

Identify job requirements from specifications, drawings, job sheets or work instructions

2

Transfer dimensions from a detail drawing to work or surface

2.1

Determine and understand specifications and work requirements using correct and appropriate calculations

2.2

Carry out marking out to specifications or procedures using appropriate tools and equipment

2.3

Establish datum points

3

Make templates/ patterns as required

3.1

Chose appropriate template/pattern material, as required

3.2

Produce required templates to specifications

3.3

Follow correct storage procedures, including labelling and identification to SOPs

4

Develop patterns and/or transfer measurements to structures

4.1

Chose and apply most appropriate development and/or measurement sequence

4.2

Determine allowances for fabrication and assembly and transfer

4.3

Check measurement transfer/layout of components to ensure accuracy/set out

5

Interpret relevant codes, standards and symbols

5.1

Interpret relevant standards/codes and symbols

5.2

Interpret requirements of standards/codes and apply to materials and processes

6

Estimate quantities of materials from detail drawings

6.1

Identify materials

6.2

Estimate quantities from drawing

6.3

Minimise material wastage

Foundation Skills

This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.


Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Template materials include one (1) or more of the following:

steel plate

perspex

timber

cardboard

paper

Storage procedures include one (1) or more of the following:

labelling

identification (e.g. template lofts)

Allowances include one (1) or more of the following:

thickness

bend

pitch

angle

circumference

perimeter


Competency Field

Measurement