Knowledge of Motor Vehicle Body Resistance Spot Welding Operations


Unit Reference Number:     F/601/5434

Learning OutcomesAssessment Criteria
1Understand how to work safely when carrying out motor vehicle body resistance spot welding operations1.1Describe the health, safety and legal requirements relating to the joining of materials using resistance spot welding techniques
1.2Describe the importance of selecting, using and maintaining the appropriate personal protective equipment when joining materials using resistance spot welding techniques
1.3Describe the requirements for protecting the vehicle and contents from damage before, during and after the joining of materials by resistance spot welding techniques
2Understand how to select, check, use and maintain appropriate tools and equipment used in motor vehicle body resistance spot welding operations2.1Identify and explain the use of all tools and equipment required to join materials using resistance spot welding techniques
2.2Describe, within the scope of their responsibilities, how to select, prepare and maintain tools and equipment required to join materials using resistance spot welding techniques
3Understand how to carry out motor vehicle body resistance spot welding operations3.1Describe the importance of correct surface preparation methods to ensure a good resistance spot weld is achieved
3.2Identify the need for alignment and mating of materials and the best methods used to achieve this in resistance spot welding
3.3Describe the welding processes, techniques and joints used for the joining of materials using resistance spot welding
3.4Identify the faults and defects that can occur when carrying out resistance spot welding
3.5Identify common causes which produce the faults and defects in resistance spot welding
3.6Describe the types of quality control checks that can be used to ensure correct joining of materials
3.7Describe how to inspect and assess resistance spot welding in accordance to Industry Standards including:

  1. a. weld pitch
  2. b. indentation
  3. c. heat zone
  4. d. nugget size
  5. e. peel and shear test
3.8Compare the advantages and disadvantages of resistance spot welding over other welding methods
3.9Explain the importance and implications of checking and carrying out weld test pieces prior to carrying out the welding process