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: 

Conduct advanced milling operations and methods 
SAQA US ID UNIT STANDARD TITLE
258680  Conduct advanced milling operations and methods 
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 4  NQF Level 04  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
13305  Produce complex components using milling machines  Level 4  NQF Level 04  29   

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:
  • Plan and prepare to utilise advanced milling operations and methods.
  • Cut gears.
  • Conduct co-ordinated drilling and boring. 
    		•

    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:
  • Produce components by performing milling operations NQF Level 3. 
    		•

    UNIT STANDARD RANGE 
    Advanced milling operations and methods include but are not limited to differential indexing (gear cutting), rack and pinion, spline shaft, spurr gear, Step boring (vertical), co-ordinated drilling and boring.
  • 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. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Plan and prepare to utilise advanced milling operations and methods. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Drawings are interpreted to determine required milling operations and methods. 

    ASSESSMENT CRITERION 2 
    Drawings are interpreted to determine fits and tolerances. 

    ASSESSMENT CRITERION 3 
    Tables and formulae are used and interpreted to generate milling specifications. 
    ASSESSMENT CRITERION RANGE 
    Milling specifications include but are not limited to calculations, pitch, teeth, depth, angles, type of cutters, indexing, co-ordinates.
     

    ASSESSMENT CRITERION 4 
    Drawings are analysed to determine the impact on the planning and sequence of milling operation. 

    ASSESSMENT CRITERION 5 
    Drawing is used to plan the materials, accessories and equipment required for the milling operation. 

    ASSESSMENT CRITERION 6 
    The impact of speeds and feeds are analysed to reflect the standard and quality of finish. 

    SPECIFIC OUTCOME 2 
    Cut gears. 
    OUTCOME RANGE 
    Gears include but are not limited to spur, rack and pinion, spline shaft. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The method and accessories for gear cutting is selected in accordance with drawing specification. 
    ASSESSMENT CRITERION RANGE 
    Method and accessories could include dividing head, between centers, chucking, and gear cutting attachments.
     

    ASSESSMENT CRITERION 2 
    Tables and formulae are used and interpreted to generate gear cutting specifications. 
    ASSESSMENT CRITERION RANGE 
    Gear cutting specifications include but are not limited to calculations, pitch, teeth, depth, angles, type of cutters, indexing, co-ordinates.
     

    ASSESSMENT CRITERION 3 
    Speeds and feeds are selected according to charts and calculations. 

    ASSESSMENT CRITERION 4 
    Gears are cut in accordance with legal and safety requirements to match drawing specifications. 

    ASSESSMENT CRITERION 5 
    Measuring equipment is utilised to test whether gears are cut to meet specified tolerances and drawing specifications. 

    ASSESSMENT CRITERION 6 
    Component is finished in accordance with quality and drawing specifications. 

    ASSESSMENT CRITERION 7 
    Reporting requirements are met in accordance with workplace procedures. 

    SPECIFIC OUTCOME 3 
    Conduct co-ordinated drilling and boring. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The pitch is calculated and determined according to drawing specifications. 

    ASSESSMENT CRITERION 2 
    Speeds and feeds are determined according to charts and calculations. 

    ASSESSMENT CRITERION 3 
    Tools and accessories are selected and utilised in accordance with drawing specifications. 
    ASSESSMENT CRITERION RANGE 
  • Tools include but are not limited to milling cutters, drill bits, reamers, boring bars and bits, edge finder.
  • Accessories include but are not limited to clamping devices, boring head attachment, tail stock.
     
    		•

    ASSESSMENT CRITERION 4 
    The sequence of drilling and boring operation is determined in accordance with the reference point. 

    ASSESSMENT CRITERION 5 
    Holes are drilled and bored to meet drawing specifications. 

    ASSESSMENT CRITERION 6 
    Measuring equipment is utilised to test that drilled and bored holes are co-ordinated and meet specified tolerances. 

    ASSESSMENT CRITERION 7 
    Problems are recognised and addressed in accordance with standard operating procedures. 

    ASSESSMENT CRITERION 8 
    Drilling and boring operations are performed in accordance with occupational health and safety requirements. 

    ASSESSMENT CRITERION 9 
    Component is finished in accordance with quality and drawing specifications. 

    ASSESSMENT CRITERION 10 
    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 13305, "Produce complex components using milling machines", Level 4, 30 credits. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  91925   Further Education and Training Certificate: Mechanical Engineering: Machining and Tooling  Level 4  NQF Level 04  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.