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Elements and Performance Criteria

  1. Check work requirements.
  2. Prepare materials for joining.
  3. Apply joining materials.
  4. Join materials.
  5. Respond to routine problems in accordance with procedures.

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Application of knowledge of the materials equipment and process sufficient to recognise out of specification products process problems and materials faults

Knowledge of organisation procedures quality requirements and relevant regulatory requirements along with the ability to implement them within appropriate time constraints and work standards

Application of the knowledge of managing risk using the hierarchy of controls applied to the coating process Application of approved hazard control and safety procedures and the use of PPE in relation to handling materials equipment operation and cleanup

Knowledge and skills in the operation of the joining process and equipment sufficient for consistent production of quality products including

correct selection and use of equipment or tools materials processes and procedures

accurately monitoringequipment operation and product quality

reasons for checking conditions and taking action when outside of the normal range of process variability

identifying factors which may affect product quality or production output and appropriate remedies

potential effectsof variations in materials and equipment operation in relation to quality of product

joining behaviour of polymers to relevant substrates and the role of adhesivescohesives solvents and other materials

waste management and knowing the importance of reusing nonconforming products wherever possible

basic preblending of materials

methods of application of joining materials

required surface preparations and their importance to joining

types of adhesives cohesives solvents and their differences uses where they may or may not be used and range of application

critical factors for different types of joining processes such as gap filling aesthetics structural strength etc

Competence also includes the ability to

plan production workflow sequences and materials demand

plan own work including predicting consequences and identifying improvements

identify when the operator is able to rectify faults when assistance is required and who is the appropriate source for assistance

identify and describe own role and role of others involved directly in the coating process

Language literacy and numeracy requirements

This unit requires the ability to read and interpret typical product specifications job sheets procedures material labels and safety information as provided to operators

Writing is required to the level of completing workplace forms

Basic numeracy is required eg to determine the amounts of materials needing to be blended for a pot adhesive

Evidence Required

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria required skills and knowledge the Range Statement and the Assessment Guidelines for this Training Package

Overview of assessment

A holistic approach should be taken to the assessment

Assessors must be satisfied that the person can consistently perform the unit as a whole as defined by the Elements Performance Criteria and skills and knowledge

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

It is essential that competence is demonstrated in the knowledge and skills defined in this unit These may include the ability to

apply the required skills and knowledge to complete adhesive bonding jobs

apply approved procedures

Consistent performance should be demonstrated For example look to see that

joining production standards are met consistently

all safety procedures are followed

Assessment method and context

Assessment will occur using industrial bonding situations and will be undertaken in a worklike environment

Competence in this unit may be assessed

by using appropriate joining materials situations and tools

in a situation allowing for the generation of evidence of the ability to respond to problems

by using a suitable simulation andor a range of case studiesscenarios

through a combination of these techniques

In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practicalsimulation or similar assessment Assessors need to be aware of any cultural issues that may affect responses to questions

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

Specific resources for assessment

This section should be read in conjunction with the Range Statement for this unit of competency Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation A bank of case studiesscenarios and questions will also be required to the extent that they form part of the assessment method Questioning may take place either in the workplace or in an adjacent quiet facility such as an office or lunchroom No other special resources are required

Access must be provided to appropriate learning andor assessment support when required Where applicable physical resources should include equipment modified for people with disabilities


Range Statement

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.

Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.

Context

This competency applies to all joining operations where a solid polymer is joined to another substrate. It includes the operation of all relevant additional equipment where that equipment is integral to the joining process.

Procedures

All operations are performed in accordance with procedures.

Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.

Substrate suitability

Substrate suitability includes:

surface soundness

surface preparation such as grit blasting, etching, sanding, buffing, scraping, machining or other preparations

substrate porosity

surface pits, protrusions or other irregularities.

Joining materials

Joining materials include:

adhesives (such as commercially available materials 'Loctite, Sikaflex, Plexus)

cohesives

solvents (such as aliphatics, ketones, aromatics)

other materials (such as glues, fillers)

Joining material preparation

Joining material preparation includes:

mixing one pot materials to achieve homogeneity

blending two (or more) pot material components

thinning (eg with solvent) if required

measuring components for blends.

Joining material application

Joining material application to include:

correct application rate

even application

economical application

correct application method.

Contact between surfaces

Contact between surfaces may be effected by:

use of hand rollers

use of presses

may be achieved as part of the curing process where this is done under pressure

other relevant equipment.

Tools and equipment

This competency includes use of equipment and tools such as:

application equipment (eg brushes, syringes, pipettes, spray guns, application scrapers)

additional equipment (eg vapour extraction, application booths)

manual handling aids (eg hand carts, trolleys)

hoists/lifting equipment not requiring any special permits or licences

relevant personal protective equipment.

Hazards

Typical hazards include:

spills and splashes

toxic fumes or vapours

hazardous materials

manual handling hazards

flammable vapours.

Problems

'Respond to routine problems' means apply known solutions to a limited range of predictable problems. Typical process and product problems may include:

incorrect selection of joining materials

variations in materials

contamination of joining materials or substrates

inappropriate application of materials

dust and other contamination

drying rates

film thickness variation

film application rates

coverage

tack (too much, not enough, long leg/short leg)

products with substrate or other faults.

Appropriate action for non-routine problems may be reporting to designated person or other action specified in the procedures.

Variables

Key variables to be monitored include:

application patterns

adhesive consistency

substrate preparation, condition and finish

adhesive viscosity

solvent/thinner blend ratios.