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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Determine job requirements
   • Follow standard operating procedures (SOPs)
2. Comply with work health and safety (WHS) requirements at all times
3. Use appropriate personal protective equipment (PPE) in accordance with SOPs
4. Identify job requirements from specifications, drawings, job sheets or work instructions
5. Collect information on faulty extrusion
   • Liaise with extruder operator on die service or fault correction requests
6. Access and examine die in accordance with procedures
7. Examine extruder records and identify any previous die corrections
8. Consult with die designer on faults, where required
9. Examine extruder maintenance records and liaise with maintenance department
10. Interpret die drawing and specifications
    • Identify layout and pre-forming of die apertures
11. Identify bearing and pocket design/specification
12. Identify measurements and tolerances for bearings, die components and die support system
13. Identify bolster and spacer specification for die
14. Identify press specifications
15. Identify speed estimate for die
16. Identify ports and bridges for hollow dies
17. Examine faulty extrusions
    • Check extrusions for shape distortion
18. Check extrusion measurements are to specification
19. Inspect surface finish of extrusions for defects
20. Identify whether faults apply from the start to the end of extrusion runouts
21. Make a preliminary assessment as to whether faults are related to die or die support system or other factors
22. Check for faults not related to die or die support system
    • Examine die and billet heating and temperature records and confirm heating and temperature was to specification
23. Confirm extruder was run at correct speed and other settings were to specification
24. Examine billet history and determine if billet was recycled or faulty
25. Confirm with maintenance department that extruder is free of mechanical, electrical, control or structural faults
26. Identify die and die support related faults
    • Access die and die support system
27. Inspect die for overall wear, dishing, damage and other defects
28. Inspect bearings for shortening, surface defects, loss of specified angle and clearances
29. Determine if die can be corrected, scrapped or returned to manufacturer
30. Inspect die support system and components for defects and die slide misalignment
31. Record cause of fault and communicate as required
    • Prepare recommendations for die correction and obtain any required approvals
32. Prepare recommendations for any changes to process or temperature settings and distribute, as appropriate