Required skills

Required skills include

resin infusion

applying tack tape

applying bag pleats sits well and so on

inlet and outlet plumbing connectdisconnect

managing flow medium eg cloth

managing cores as required

managing flow and gel times relationship to positioning and spacing of lines

managing and monitoring vacuum pressure

monitoring cure cycles

checking for leaks

accessing and operating relevant computer programs

vacuum bagging

see infusion protect bag from contamination

applying breather clothfilms

applying of peel ply

achieving correct ply location and orientation

using release processes

Required knowledge

Required knowledge includes

reinforcement and layup schedules eg layers of reinforcement direction and darts

release systems and processes

tool sealing

gel coating

sealing of mould use of tack tape eg butyl or other mastic and mechanical seals and clamps

vacuum and vacuum systems adjustment and measurement and vacuum control eg switches controls and regulators

resin systems applicable to process eg vacuum infusion or vacuum bagging polyester and epoxy

gel times and working times

initiatorcatalyst or hardener rates to temperature hotcold

free amineamine blushes

heat curing requirements and how it is done eg ovens hot bonders blankets and autoclaves

heat curves

TG glass transition

understand design briefs eg tool design and part lines

Darcys Law and its application to the flow of resins through porous media eg reinforcing and cores

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

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

Assessment for this unit of competency will be on the job

It is essential that the process and equipment be understood and that the importance of critical material properties settings and readings is known Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action

Consistent performance should be demonstrated In particular look to see that

waste is minimised

product is made efficiently and to standard

tools and equipment are appropriately maintained

Competence must be demonstrated in the operation of all ancillary equipment to the level required for this unit of competency

Context of and specific resources for assessment

Assessment will require the fabrication of suitable objects using closed mould techniques

Assessment will occur over a range of situations which will include disruptions to normal smooth operation

Method of assessment

Typically persons engaged in composites trade work are required to apply their skills and techniques across a range of jobs and specifications

A single assessment event is not appropriate On the job assessment must be included as part of the assessment process Assessment judgements must consider evidence of the candidates performance in a productive work environment that includes a sufficient range of appropriate tasks and materials to cover the scope of application for this unit

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 supervisors 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

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed

Procedures

Requirements of product

Closed moulding techniques

Mould equipment

Prepare reinforcing

Logs and reports

Appropriate action

Typical problems

Health, safety and environment (HSE)