Unit of competency Outline

Date retreived
22/07/2026 12:58 PM AWST

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Undertake corrections and basic maintenance to aluminium extrusion dies and die support systems

Undertake corrections and basic maintenance to aluminium extrusion dies and die support systems

Unit of competency
National Code
MEM07042
State Code
OAW17
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
26/06/2019
View on TGA
State Implementation and Classification
Approved Date
Field of Education
030713 - Metal Casting And Patternmaking
Original Release Date
Nominal Hours
36
Description
This unit of competency defines the skills and knowledge required to undertake corrections to aluminium extrusion solid and hollow dies and die support systems after faulty extrusions have been examined and causes of faults identified.Where the use of mobile load shifting equipment is required unit MEM11010 Operate mobile load shifting equipment should also be selected.No licensing, legislative or certification requirements apply to this unit at the time of publication. Band: AUnit Weight: 4
Notes
Elements and Performance Criteria
1 Determine job requirements
  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Use appropriate personal protective equipment (PPE) in accordance with SOPs
  • 1.4 Identify job requirements from specifications, drawings, job sheets or work instructions
2 Prepare for die correction
  • 2.1 Identify regulatory requirements and risk management procedures relevant to die access and handling, extruder operation and die correcting procedures
  • 2.2 Identify extrusion specifications, extruder operating procedures and other information relevant to die correction task
  • 2.3 Consult with die designer on intended correction, where required
  • 2.4 Select appropriate hand tools, hand held power tools, or workshop machines to carry out die corrections
3 Correct solid dies
  • 3.1 Calculate intended change in extrusion flow or speed
  • 3.2 Determine bearing choke angles or length of bearing shortening as appropriate for required correction
  • 3.3 Speed up flow through appropriate shortening of bearing
  • 3.4 Slow down flow through appropriate choking of bearing
  • 3.5 Relieve clearances
  • 3.6 Supervise or run trial extrusions to test corrections
4 Correct hollow dies
  • 4.1 Assess if shortening or choking of mandrel bearings is required and select bearings to be corrected
  • 4.2 Determine choke angles and length of shortening as appropriate for required corrections
  • 4.3 Undercut mandrel to widen chambers
  • 4.4 Increase depth of chamber back into bridge
  • 4.5 Adjust mandrel stems
  • 4.6 Adjust weld bridges
  • 4.7 Speed up flow through appropriate shortening of bearing
  • 4.8 Slow down flow through appropriate choking of bearing
5 Undertake basic maintenance of dies
  • 5.1 Monitor case and assess when re-nitriding is required
  • 5.2 Prepare die for re-nitriding
  • 5.3 Clean and polish dies
  • 5.4 Repair fine bearing damage
  • 5.5 Maintain bearing angle and flatness during polishing and repairs
  • 5.6 Monitor fittings and devices for lifting die and die support components and arrange replacement or repair as necessary
6 Adjust die support system and components
  • 6.1 Ensure toolstack components are flat and square with die and specified toolstack dimensions that will support dies, according to the force the extruder can exert are used
  • 6.2 Check for and replace any coined bolsters
  • 6.3 Check die slide alignment is within tolerance and re-align if necessary
  • 6.4 Report persistent die support related faults after adjustment and recommend redesign or stiffening as appropriate
7 Maintain die records
  • 7.1 Record details of all die corrections, including trial extrusions
  • 7.2 Recommend any simple die design changes that increase productivity and recovery
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No information
State Code National Code Title Type
BEK2 MEM30119 Certificate III in Engineering - Production Systems Qualification