SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Produce components by performing milling operations 
SAQA US ID UNIT STANDARD TITLE
258718  Produce components by performing milling operations 
ORIGINATOR
SGB Generic Manufacturing, Engineering, Technology 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03  16 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard replaces: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
13296  Produce components by performing engineering milling operations  Level 3  NQF Level 03  20   

PURPOSE OF THE UNIT STANDARD 
The skills, values and knowledge reflected in this unit standard are required by people in the field of mechanical engineering.

Qualifying learners can carry out engineering milling operations with a range of accessories and tools. The results are checked with precision measuring instruments.

A person credited with this unit standard is able to:
  • Explain and discuss milling operations.
  • Prepare for milling operations and maintain milling machine.
  • Perform milling operations.
  • Finish milling operation. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    This unit standard has been designed as part of a progression. It is one of a series of unit standards for milling in the engineering machining skills area.

    The credits allocated to this unit standard assume that a learner has already learned to:
  • Operate and monitor a milling machine NQF Level 2. 
    		•

    UNIT STANDARD RANGE 
    Milling operations include but are not limited to indexing, differential index, milling angles, vertical/horizontal boring, milling radiuses, pitch drilling, gang, end, slot, form, slitting, dovetail.

    The scope and level of this unit standard is determined by the ranges as indicated under the specific outcomes.

    The learner should be able to work autonomously with minimal supervision. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Explain and discuss milling operations. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Milling operations are explained to reflect the operating procedure for the specific operation. 
    ASSESSMENT CRITERION RANGE 
    Specific operation include but is not limited to indexing, differential index, milling angles, vertical/horizontal boring, milling radiuses, pitch drilling, machine tapping, reaming.
     

    ASSESSMENT CRITERION 2 
    The purpose and process of different milling operations are explained to reflect implications of malfunctioning. 

    ASSESSMENT CRITERION 3 
    The relationship between speeds and feeds is explained in terms of the requirement of the milling operation. 

    ASSESSMENT CRITERION 4 
    Gear cutting procedures are explained to reflect the use of different formulae and indexing. 

    SPECIFIC OUTCOME 2 
    Prepare for milling operations and maintain milling machine. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Drawings are interpreted to determine sequence of step by step operations. 

    ASSESSMENT CRITERION 2 
    Materials and tools required at workstation are checked in accordance with drawing specifications. 
    ASSESSMENT CRITERION RANGE 
    Materials and tools include but not limited to dividing heads, dividing table, cutters, slit saws, ferrous and non-ferrous, boring heads, drills, reamers.
     

    ASSESSMENT CRITERION 3 
    Measuring equipment required for a work piece is selected in accordance with drawing specifications. 
    ASSESSMENT CRITERION RANGE 
    Measuring equipment includes but not limited to protractor, pitch gauge, height gauge, micrometers and vernier and dial test indicators.
     

    ASSESSMENT CRITERION 4 
    The sequence of milling operations is determined as required by male and female tapers. 

    ASSESSMENT CRITERION 5 
    Milling speeds and feeds are determined and selected for the different cutting operations. 

    ASSESSMENT CRITERION 6 
    Required milling accessories/attachments are selected in accordance with the work piece requirements. 
    ASSESSMENT CRITERION RANGE 
    Accessories/attachments include but not limited to dividing head, rotary table, spindle, tail stock.
     

    ASSESSMENT CRITERION 7 
    The work piece is set-up and secured without damage to work piece or machine. 

    SPECIFIC OUTCOME 3 
    Perform milling operations. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The sequence of milling operations is performed as required by male and female tapers. 
    ASSESSMENT CRITERION RANGE 
    Milling operations include determine angle, set angle, calculate angle.
     

    ASSESSMENT CRITERION 2 
    Milling machine is monitored while in operation, making adjustments to speeds and feeds where required. 
    ASSESSMENT CRITERION RANGE 
    Adjustments include but are not limited to check finishing on gears, gear ratios, re-sharpening tools.
     

    ASSESSMENT CRITERION 3 
    Problems are recognised and addressed in accordance with standard operating procedures. 

    ASSESSMENT CRITERION 4 
    Milling operations are performed in accordance with occupational health and safety requirements. 

    ASSESSMENT CRITERION 5 
    Milling operations are performed in accordance with the dimensions, drawing specifications and the specified tolerances. 
    ASSESSMENT CRITERION RANGE 
    The maximum tolerance is +- 0,05 mm.
     

    SPECIFIC OUTCOME 4 
    Finish milling operation. 
    OUTCOME RANGE 
    Finishing includes but is not limited to apply quality checks, take corrective action and report on operations. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Milled component is quality checked for non-conformances. 

    ASSESSMENT CRITERION 2 
    Job and time sheets are completed in accordance with organisational procedures. 

    ASSESSMENT CRITERION 3 
    Housekeeping requirements are met in accordance with workplace procedures. 
    ASSESSMENT CRITERION RANGE 
    Housekeeping requirements include but are not limited to clean and tidy work environment, storing, cleaning.
     

    ASSESSMENT CRITERION 4 
    Incidents reflecting changes or unsafe conditions during milling operation are addressed in accordance with workplace and occupational health and safety requirements. 

    ASSESSMENT CRITERION 5 
    Reporting requirements are met in accordance with workplace procedures. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    The assessment will be governed by the policies and guidelines of the relevant Education and Training Quality Assuror (ETQA) that has jurisdiction over this field of learning.

    The assessor will (at the very least) be accredited and have a relevant qualification and be a subject matter expert in this learning area and at least have 3 years experience in the skills specific area.

    The learner can be assessed against this unit standard to obtain credits or as part of an integrated assessment for a qualification:
  • Internal moderation.
  • External moderation.
  • An assessor, accredited by the relevant ETQA, will assess the learner's competency.
  • Assessment procedures will be supplied by the ETQA in alignment with NSB requirements.
  • All assessment activities must be fair, so that all candidates have equal opportunities. Activities must be free of gender, ethnic or other bias.
  • Assessment and moderation procedures, activities and tools must be transparent, affordable and support development within the field, sub-field and NQF.
  • Questions and answers to determine theoretical knowledge are expected.
  • Assessment of a portfolio of evidence.
  • Direct observation in simulated and/or controlled work conditions. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Names, functions and locations of:
  • Accessories.
  • Work holding fixtures.
  • Tools (geometry and composition).
  • Measuring equipment.
  • Personal protective equipment.
  • Common defects on components.

    Purpose of processes and procedures of:
  • Milling operations covered by this unit standard.
  • Material preparation.
  • Safety checks.

    Attributes, properties, characteristics related to:
  • Material types.
  • Machining time limits.

    Cause and effect, implications of:
  • Implications of selecting inappropriate accessories, work holding fixtures, tools, cutting speeds and feeds.
  • Implications of incorrect installation of accessories, work holding fixtures and tools.
  • Implications of component not meeting specifications, e.g. poor finishes, uneven surface textures, incorrect size.
  • Implications and consequences of situations such as, e.g. damaged or faulty equipment, allowing faulty processes to continue, delaying reports about changing conditions.
  • Implications of not meeting machining time limits.

    Procedures and techniques:
  • Set up procedures for milling machine.
  • Milling operations and procedures covered by this unit standard.
  • Measuring procedures.
  • Machine cleaning procedures.
  • Recording and reporting procedures.

    Regulations, legislation, agreements, policies:
  • Applicable safety, health and environmental protection legislation and standards.
  • Applicable quality standards and specifications.

    Theory: Rules, laws, principles:
  • Applicable machining theory covering speeds and feeds, material properties and the underlying principles of milling.
  • Applicable mathematical concepts including geometry, trigonometry and algebra.
  • Applicable underlying scientific concepts.

    Relationships, systems:
  • The relationship of the drawing to the machined component. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identifying and solving problems in which responses display that responsible decisions using critical and creative thinking have been made when:
  • Recognise problems while machining components and respond appropriately. 
    		•

    UNIT STANDARD CCFO WORKING 
    Working effectively with others as a member of a team, group, organisation, and community. 

    UNIT STANDARD CCFO ORGANISING 
    Organising and managing oneself and one's activities responsibly and effectively when:
  • Plan sequence of operations based on job requirements and set up machine appropriately. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collecting, analysing, organising and critically evaluating information to better understand and explain:
  • Collect sensory and numeric information from the process and the machined component.
  • Classify the information and identify deviations from the norm. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicating effectively using visual, mathematical and/or language skills in the modes of oral and/or written persuasion when:
  • Record outputs, incidents, measurements.
  • Report incidents and conditions.
  • Respond to questions or requests for more details. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and health of others when:
  • Understand and explain machining theory and mathematical and scientific concepts underpinning the machining operation. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrating an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation when:
  • The relationship of the drawing to the final machined component.
  • The purpose and uses of the machined component. 
    		•

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    This unit standard replaces unit standard 13296 "Produce components by performing engineering milling operations", Level 3, 20 credits.

    The milling machine used could include both universal and CNC milling, 3-axis. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  91926   National Certificate: Mechanical Engineering: Machining and Tooling  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.