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 complex turning operations 
SAQA US ID UNIT STANDARD TITLE
258677  Conduct complex turning 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 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
13314  Produce complex components using lathes  Level 4  NQF Level 04  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 turning 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 for complex turning operation.
  • Machine matching internal and external tapers.
  • Use accessories for machine tapping and reaming.
  • Calculate and machine multi start thread. 
    		•

    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 turning 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 turning operations NQF Level 3. 
    		•

    UNIT STANDARD RANGE 
    Turning operations include but are not limited to matching internal and external tapers, machine tapping and reaming, matching multi start thread.
  • 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 for complex turning operation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Tables are interpreted to determine the different types and class of fits. 

    ASSESSMENT CRITERION 2 
    Tables and formulae are used and interpreted to calculate angles and threads and test tapers. 

    ASSESSMENT CRITERION 3 
    Tables and formulae are used and interpreted for reaming, tapping and screw cutting. 

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

    ASSESSMENT CRITERION 5 
    Assembly drawing is used to plan the materials, accessories and equipment required for the turning operation. 

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

    SPECIFIC OUTCOME 2 
    Machine internal and external tapers (matching). 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The method for machining of taper is selected in accordance with the angles specified in drawing. 
    ASSESSMENT CRITERION RANGE 
    Method could include compound slide or taper turning attachments.
     

    ASSESSMENT CRITERION 2 
    Angle is set to meet the opposite taper in accordance with drawing specifications. 

    ASSESSMENT CRITERION 3 
    Tapers are machined to match each other utilising a selected method in accordance with legal and safety requirements. 

    ASSESSMENT CRITERION 4 
    The amount of material to be removed is calculated to enable the tapers to match. 

    ASSESSMENT CRITERION 5 
    Testing methods are utilised to ensure that tapers are matched in accordance with specified tolerances. 

    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 
    Use accessories for machine tapping and reaming. 
    OUTCOME RANGE 
    Accessories include but are not limited to tolerance charts, speeds and feeds charts, tapping attachment, clamping equipment, tail stock. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Drill and tap sizes are selected in accordance with the tolerance charts. 

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

    ASSESSMENT CRITERION 3 
    Holes are drilled to meet tapping or reaming specifications. 

    ASSESSMENT CRITERION 4 
    Accessories are utilised in accordance with the hole size. 

    ASSESSMENT CRITERION 5 
    Measuring equipment is utilised to test whether tapped or reamed hole meet specified tolerances. 

    ASSESSMENT CRITERION 6 
    Problems are recognised and addressed in accordance with standard operating procedures. 

    ASSESSMENT CRITERION 7 
    Tapping and reaming operations are performed in accordance with occupational health and safety requirements. 

    ASSESSMENT CRITERION 8 
    Component is finished in accordance with quality and drawing specifications. 

    ASSESSMENT CRITERION 9 
    Reporting requirements are met in accordance with workplace procedures. 

    SPECIFIC OUTCOME 4 
    Calculate and machine multi start thread. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Tables or calculations are used to determine internal and external diameters. 

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

    ASSESSMENT CRITERION 3 
    Gear train settings are selected and set to machine multiple start threads according to the calculations. 

    ASSESSMENT CRITERION 4 
    Cutting tools are prepared to machine multiple start threads according to the pitch and type of thread. 

    ASSESSMENT CRITERION 5 
    Multiple start threads are machined and matched according to the calculated diameters. 

    ASSESSMENT CRITERION 6 
    Measuring equipment is selected and utilised to test whether multiple start threads meet specified tolerances. 
    ASSESSMENT CRITERION RANGE 
    Measuring equipment includes but not limited to pitch gauge, micrometers and vernier and dial test indicators.
     

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

    ASSESSMENT CRITERION 8 
    Thread cutting 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 procedure. 


    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.

    Purpose of processes and procedures of:
  • Turning 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 lathe.
  • Turning 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.
  • Applicable underlying scientific concepts.

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

    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 13314, "Produce complex components using lathes", Level 4, 20 credits.

    Complex turning refers to the utilisation of a variety of machining components to complete one specific component. 

    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.