View Unit : Welding Materials with Mechanised Arc Welding Equipment

Unit

Unit Reference Number

Y/601/1471

Qualification Framework

QCF

Title

Welding Materials with Mechanised Arc Welding Equipment

Unit Level

Level 2

Unit Sub Level

None

Guided Learning Hours

140

Unit Credit Value

Date of Withdrawal

SSAs

4.1 Engineering

Unit Grading Structure

Pass

Assessment Guidance

This unit must be assessed in a work environment and must be assessed in accordance with the ‘Common Requirements for National Vocational Qualifications (NVQ) in the QCF’ which can be downloaded from Semta’s website: http://www.semta.org.uk/training_providers__awarding/national_occupational_standard/qca_assessment_requirements.aspx

Additional assessment requirements have been published by Semta. These additional assessment requirements are set down in Semta’s Fabrication and Welding Engineering Suite 2 unit assessment strategy which can be downloaded from Semta’s website: http://www.semta.org.uk/training_providers__awarding/national_occupational_standard/qca_assessment_requirements.aspx

View Unit's Qualifications

Learning Outcomes and Assessment Criteria

Learning Outcome - The learner will:		Assessment Criterion - The learner can:
1	1a. Weld Materials with Mechanised Arc Welding Equipment	1.1	Work safely at all times, complying with health and safety and other relevant regulations and guidelines
		1.2	Follow the relevant joining procedure and work instructions
		1.3	Operate one of the following mechanised arc welding processes in the specified materials, forms and positions: • MIG/MAG • cored wire • TIG • submerged arc • plasma arc
		1.4	Confirm that the machine is set up and operating correctly, ready for the joining operations to be carried out
		1.5	Check all of the following before starting production: • the installation has been approved for production • supplies of components and consumables are adequate and correctly prepared • machine settings comply with instructions and the welding procedure specification • all machine functions operate correctly • all safety equipment is in place and functioning correctly
		1.6	Check that the parent material, components, consumables and joint preparation comply with specifications
		1.7	Produce welded components covering both of the following: • two different joint configurations • two different material groups
2	1b. Weld Materials with Mechanised Arc Welding Equipment (continued)	2.1	Carry out and monitor the machine operations in accordance with specifications and job instructions
		2.2	Monitor the process operation and machine functions, and make adjustments as required to parameters and mechanisms within their permitted authority and tolerances, to include adjusting all of the following: • electrical parameters • welding speed • flux dispensing and recovery mechanisms • safety devices • wire feed rate • gas shielding system • mechanical functions (handling, loading, workholding, transfer)
		2.3	Achieve joints of the required quality and specified dimensional accuracy which: • achieve a weld quality equivalent to the relevant level of EN 25817/ISO 5817, as required by the application standard (for aluminium, EN 30042/ISO 10042 applies) • meet the required dimensional accuracy within specified tolerances
		2.4	Achieve the rate of output as specified
		2.5	Deal promptly and effectively with problems within their control and report those that they cannot solve
		2.6	Shut down the equipment to a safe condition on conclusion of the joining activities
3	2a. Know how to Weld Materials with Mechanised Arc Welding Equipment	3.1	Explain the safe working practices and procedures to be observed when operating mechanised arc welding installations (working with machinery; the use of personal protective equipment; protecting others from the effects of the electric arc; appropriate machine guards; operation of machine safety devices; stopping the machine in an emergency; closing the machine down on completion of activities; statutory requirements, risk assessment procedures and relevant requirements of HASAWA, COSHH and Work Equipment Regulations; safe disposal of waste materials)
		3.2	Describe the hazards associated with arc welding machines (dangers from the electric arc; live electrical components; fumes and gases; hot metal; grinding and mechanical metal/slag removal; moving parts of machinery), and how they can be minimised
		3.3	Explain the basic principles of mechanised and automated welding (types of installations; machine functions; control systems; safety features)
		3.4	Describe the key components and features of the equipment used (power source; electrical parameters such as arc voltage, current, wire dispensing and feed mechanisms; flux dispensing and recovery; shielding gas supply; control and storage of consumables; how variations in the parameters influence weld features, quality and output)
		3.5	Explain how to extract the necessary information from drawings and welding procedure specifications; welding symbols and abbreviations used
		3.6	Explain the operation of the machine controls and their function; care of equipment
		3.7	Explain how to set up and align the workpiece, and the equipment to be used
4	2b. Know how to Weld Materials with Mechanised Arc Welding Equipment (continued)	4.1	Explain how to monitor the installation during the welding process; how to recognise problems and action to be taken
		4.2	Describe the problems that can occur with the welding activities (distortion, material and weld defects)
		4.3	Explain the self inspection of completed work, methods and equipment to be used
		4.4	Describe the organisational quality systems (standards to be achieved; production records to be kept)
		4.5	Explain the personal approval tests and their applicability to their work
		4.6	Describe the extent of their own authority and explain whom they should report to if they have problems that they cannot resolve
		4.7	Explain the reporting lines and procedures, line supervision and technical experts

Equivalent Units

There are no equivalences to display.