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Elements and Performance Criteria

1. Observe safety precautions
   • Correct safety procedures are observed and protective clothing and safety glasses are worn.
2. Determine job requirements
   • Drawings are interpreted and sequence of operation is determined.
   • Tools are selected to produce components to specifications.
   • Disc size is determined according to relevant procedures.
   • Disc is cut to the correct size and tolerance.
3. Prepare form chucks for spinning
   • Metal turning lathe is set up for machining form chucks according to standard operating procedures and standards.
   • Form chuck is prepared for general spinning as per drawings and specifications.
   • Form chuck is prepared for seaming/swaging joints as per drawings and specifications.
4. Perform complex spinning operations
   • Spinning speeds are calculated for various metals and metal thicknesses using appropriate mathematical techniques and reference materials.
   • Correct back centre and form chucks are selected and mounted according to procedures and specifications.
   • Prepared disc is mounted for forming.
   • A full range of spinning accessories is used including: back centre, holding and sectional chucks, tee-rest, compound and additional slides, recessed and cranked followers, rollers and knurling wheels.
   • Spinning, beading, recessing, oval spinning, screw forming, (thread spinning) seaming, swaging, trimming finishing, annealing and pickling operations are performed to specification.
5. Check components for conformance to specifications
   • Components are checked for conformance to specifications using appropriate techniques, tools and equipment.
6. Remove and store components
   • Components are removed from the spinning lathe without marking or any deformation.
   • Components are correctly stored and packaged to avoid oxidation and damage.

Required Skills

Required skills

Look for evidence that confirms skills in reading and interpreting information on written job instructions specifications and standard operating procedures May include drawings entering information onto proformas and standard workplace forms following oral instruction using all types of metal spinning tools and accessories calculating disc size and lathe speed including angles and radius manual handling related to spinning products coordinating use of multislides and tools feeds and speeds producing complex spinning shapes using a variety of processes and techniques

Required knowledge

Look for evidence that confirms knowledge of complex spinning operations processes and techniques requirements for maintaining tools and manufacturing form chucks types of damage and defects eg tool marks cracking stress marks thinning and incorrect finish function and operation of accessories methods used for each process methods for stacking and protecting finished product use and application of personal protective equipment safe work practices and procedures hazards and control measures associated with metal spinning lathe operations complex

Evidence Required

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
Overview of assessment	A person who demonstrates competency in this unit must be able to perform complex spinning operations using a range of metal spinning lathes accessories and measuring equipment Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	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
Context of and specific resources for 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 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 This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with performing complex metal spinning lathe operations 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 supervisors reports project work samples and questioning Questioning should not require language literacy and numeracy skills beyond those required in this unit 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

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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. Bold italicised wording, if used in the performance criteria, is detailed below. 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) may also be included.
Tools	Spinning tools, planishing tools, backstick, trimming, beading tools, back centre, holding and sectional chucks, tee-rest, compound and additional slides, recessed and cranked followers, rollers and knurling wheels etc.
Complex spinning operations	Spinning, beading, recessing, oval spinning, screw forming, (thread spinning) seaming, swaging, trimming finishing, annealing, pickling, combined angles and multi-radii
Metals	Steels, aluminium, monel, copper, brass, brass alloys, zinc, pewter, silver, gold, tin, etc., of varying thicknesses

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