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Evidence Guide: MEA368A - Shot peen aircraft components

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEA368A - Shot peen aircraft components

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for shot peening task

  1. Process documentation is obtained and correctly interpreted
  2. Shot peening equipment is prepared in accordance with the applicable process
Process documentation is obtained and correctly interpreted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shot peening equipment is prepared in accordance with the applicable process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply shot peening process to Almen strip

  1. The correct Almen strip is selected and fitted and equipment set up with the correct stand-off distance and regulated air pressure or spindle speed in accordance with the process documentation
  2. The process is correctly applied to the Almen strip
  3. The Almen strip distortion is measured to ensure that it is within the specified tolerance
  4. Equipment settings are adjusted and the Almen strip test repeated, if required
  5. Settings that produce specified Almen strip distortion are recorded and the test strip is presented for inspection
The correct Almen strip is selected and fitted and equipment set up with the correct stand-off distance and regulated air pressure or spindle speed in accordance with the process documentation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The process is correctly applied to the Almen strip

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The Almen strip distortion is measured to ensure that it is within the specified tolerance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment settings are adjusted and the Almen strip test repeated, if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Settings that produce specified Almen strip distortion are recorded and the test strip is presented for inspection

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply shot peening process to component

  1. The component is cleaned and masked in accordance with process documentation
  2. Shot peening is applied in accordance with the process documentation using equipment settings derived from Almen test strip
  3. The shot peened surface is checked for required density and coverage and re-peened, if necessary
  4. The shot peened component is checked for cleanliness to ensure that all contaminants have been removed in accordance with the process documentation
The component is cleaned and masked in accordance with process documentation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shot peening is applied in accordance with the process documentation using equipment settings derived from Almen test strip

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The shot peened surface is checked for required density and coverage and re-peened, if necessary

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The shot peened component is checked for cleanliness to ensure that all contaminants have been removed in accordance with the process documentation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete shot peening task

  1. Task completion is recorded in accordance with standard enterprise procedures
  2. Shot peened component is presented for inspection, along with Almen test strip and completed documentation
  3. Where applicable, the component is tagged, sealed or packaged in accordance with specified procedures
Task completion is recorded in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shot peened component is presented for inspection, along with Almen test strip and completed documentation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Where applicable, the component is tagged, sealed or packaged in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 shot peen surfaces of aircraft components to obtain the intensity and coverage specified in process documentation while applying all relevant safety precautions.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The underlying skills inherent in this unit should be transferable across a range of shot peening applications associated with aircraft components. It is essential that the relevant procedures are interpreted and applied to ensure quality and safety standards are achieved.

Evidence of transferability of skills and knowledge related to shot peening is essential. This may be demonstrated through application across a number of different aircraft components. Ability to obtain and correctly interpret shot peening process documentation will be necessary before undertaking any action. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the unit of competency are being achieved under routine supervision on a representative range of shot peening tasks. This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.

Context of and specific resources for assessment

Competency should be assessed in the work environment or simulated work environment using equipment specified in process documentation. It is also expected that general and special purpose tools and test equipment found in most routine situations would be used where appropriate.

Method of assessment

Guidance information for assessment

Required Skills and Knowledge

Look for evidence that confirms knowledge of:

how to obtain relevant MSDS

the correct use of PPE

OHS procedures

the reasons for shot peening

the types of aircraft component and the materials that are shot peened

shot peening equipment and processes applicable to aircraft components

the uses of different types of shot peening media

the use of process documentation

the types of Almen test strips and their uses

setting up and calibrating equipment for use

preparation of surfaces for peening and cleaning after peening

environmental requirements associated with disposal of used media

Look for evidence that confirms skills in:

applying relevant OHS procedures, including the use of MSDS and applicable items of PPE

using relevant process documentation relating to shot peening of component surfaces to:

select and set up the required shot peening equipment

select and set up the Almen test strip

adjust equipment settings to obtain the required Almen strip distortion

prepare component surfaces for shot peening

shot peen surfaces to obtain the specified intensity and coverage

remove surface contaminants from shot peened surfaces

correctly disposing of waste shot peening media

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.

Shot peening equipment

Peening operations may be carried out using air pressure or rotor propulsion of shot and either fixed or portable shot peen units

Stand-off distance

Stand-off distance can apply to:

nozzle distance from surface for air pressure shot peening processes, or

spindle distance from job for rotor shot peening

Regulated air pressure or spindle speed

Regulated air pressure or spindle speed refers to the specified air pressure applied to the shot nozzle or the specified revolutions per minute (r.p.m.) of the spindle in the rotor peening process

Application of this unit may relate to:

scheduled or unscheduled maintenance

individual or team-related activities

Procedures and requirements

Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise