The evidence guide specifies the evidence required to demonstrate achievement in the unit of competency as a whole. It must be read in conjunction with the unit descriptor, performance criteria, range statement and the assessment guidelines for the Metal and Engineering Training Package |
Overview of assessment requirements | A person who demonstrates competency in this unit must be able to produce jobbing moulds and cores by hand. Competency in this unit cannot be claimed until all prerequisites have been satisfied. |
Context of 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. The assessment environment should not disadvantage the candidate. |
Interdependent assessment | This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with producing jobbing moulds and cores by hand 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. |
Consistency of performance | 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. |
Required skills | Look for evidence that confirms skills in: |
interpreting written instruction sketches and drawings |
assembling and positioning pattern in the moulding box |
positioning ancillary methoding components |
preparing moulding media |
filling and compacting the mould assembly |
stripping the pattern |
inspecting the mould |
finishing the mould |
positioning cores in prints |
closing moulds |
placing pouring basin |
securing mould |
following oral instruction |
entering routine and familiar information onto proforma and standard workplace forms |
Required knowledge | Look for evidence that confirms knowledge of: |
metal casting process |
variety of pattern types and their application |
pattern assembly techniques |
selection of moulding box |
how to select ancillary components |
sand types and their bonding systems |
compaction processes |
parting and stripping systems |
mould requirements |
finishing and closing techniques |
core placement |
pouring requirements |
securing systems |
pattern care and storage |
environmental requirements |
use and application of personal protective equipment |
safe work practices and procedures |
hazards and control measures associated with producing moulds and cores by hand (jobbing) |