Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
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. For example, outside temperatures can affect the setting and curing time of resin mixtures. Therefore ratios of resins mixtures need to be strictly monitored to ensure an appropriate curing time for production output.
Knowledge of organisation procedures, quality requirements at each production stage, and the ability to implement them within appropriate time constraints and work standards.
Skill to identify the range of possible causes of product faults.
Application of the knowledge of managing risks using the hierarchy of controls applied to the hand lay up process. Application of approved hazard control and safety procedures and the use of PPE in relation to handling materials, equipment operation and cleanup.
Knowledge as a basis for solving processing and material problems including:
characteristics and properties of materials required to form a composite structure of the required strength and surface finish, including fibres and pot life of the resins used
impact of resin mixtures, laying of materials, and temperatures on product quality and production output
changes to materials at various stages of production
waste management and importance of non-conforming materials
impact of variations in raw materials and application in relation to final product
setting up moulds
selection and preparation of resins, including mixing as required
selection and preparation of fibre reinforcement, including cutting and trimming
use of composites materials including gel coats, resins and fibres
use and application of cores, fillers and surface finishes
application of composite materials to the mould by hand lay up
material properties and their interactions with process conditions
relationships between material properties and process conditions
changes to material properties to better suit process requirements
product problems related to material properties
product problems related to process conditions
adjustments to process conditions to meet material and product requirements.
Competence also includes the ability to:
plan own work, including predicting consequences and identifying improvements
make measurements when required and identify product out of specification
identify and describe own role and role of others involved directly in the process
identify factors which may affect product quality or production output and appropriate remedies
identify when assistance is required to solve problems.
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.
Numeracy is required to the level of reading tables of figures and graphs (and applying the resultant information), using formula percentages/ratios to determine the required mass of an additive (catalyst, pigment etc.) for a given amount of resin, and similar manipulations and interpretation.
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 unit includes the use of equipment and materials to form complex composite products using hand lamination processes. It includes the operation of all relevant additional equipment where that equipment is integral to the hand lay up process.
Composites may be regarded as 'complex' due to their shape (eg acute angle corners), technical specification (eg high strength/rigidity/low weight) or the conditions under which the work must be undertaken (eg poor access, hot/cold environment)
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.
Tools and equipment
This competency includes use of equipment and tools such as:
open moulds for composite products
hand mixing equipment and stirrers
knives and cutters
hand application tools, rollers, brushes, etc
relevant personal protective equipment.
Hazards
Typical hazards include:
hazardous materials and vapours
manual handling hazards
fire hazards due to flammable nature of resins used
knife hazards
slip hazards.
Problems
'Anticipate and solve problems' means resolve a wide range of routine and non-routine problems, using product and process knowledge to develop solutions to problems which do not have a known solution /a solution recorded in the procedures.
Typical routine faults include:
incorrect resin ratios
fibre wet out
shifting of fibres during lay up
lay up sequence.
Non-routine faults, which may have multiple causes include:
mould release problems,
warping or cracking after moulding
voids due to resin drainage.
Typical process and product problems may include:
cracks, dents or imperfections of the mould
use of incorrect materials
variations in materials, colour, consistency or mix
contamination of materials.
Appropriate action for problems outside of area of responsibility may be reporting to an appropriate person.
Appropriate action for solving problems within area of responsibility includes asking questions and seeking assistance from appropriate persons/sources.
Variables
Key variables to be monitored include:
temperature of environment/resin
time since mixing vs pot life of resin
air flow/ventilation
viscosity of resin
differing fibres and fabrics
compacting density of application.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist