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: A

Unit Weight: 4

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List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

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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.

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

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice	Yes	No	Comments/feedback
Calculate intended change in extrusion flow or speed
Determine bearing choke angles or length of bearing shortening as appropriate for required correction
Speed up flow through appropriate shortening of bearing
Slow down flow through appropriate choking of bearing
Relieve clearances
Supervise or run trial extrusions to test corrections
Assess if shortening or choking of mandrel bearings is required and select bearings to be corrected
Determine choke angles and length of shortening as appropriate for required corrections
Undercut mandrel to widen chambers
Increase depth of chamber back into bridge
Adjust mandrel stems
Adjust weld bridges
Speed up flow through appropriate shortening of bearing
Slow down flow through appropriate choking of bearing
Record details of all die corrections, including trial extrusions
Recommend any simple die design changes that increase productivity and recovery
Follow standard operating procedures (SOPs)
Identify regulatory requirements and risk management procedures relevant to die access and handling, extruder operation and die correcting procedures
Calculate intended change in extrusion flow or speed
Assess if shortening or choking of mandrel bearings is required and select bearings to be corrected
Monitor case and assess when re-nitriding is required
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
Record details of all die corrections, including trial extrusions

Assessment Cover Sheet

MEM07042 - Undertake corrections and basic maintenance to aluminium extrusion dies and die support systems

Assessment task 1: [title]

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Result: Competent Not yet competent

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Assessment Record Sheet

MEM07042 - Undertake corrections and basic maintenance to aluminium extrusion dies and die support systems

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

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Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

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