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...courses and qualifications [Image of die and cores (where applicable) sprayed with mould coat.] 1. Die and cores (where applicable) sprayed with mould coat. Mould heated using gas burners and die lubricant sprayed on. [Image of die parts assembled and clamped, and metal poured into runner.] 2. Die parts assembled and clamped, and metal poured into runner. [Image of die...

...courses and qualifications The principles of the TIG welding torch [Images to demonstrate 'Gas shielded arc welding processes (TIG/MIG/MAG)' - see article ] Tungsten inert gas welding (TIG) is an arc welding process, which uses a non-consumable tungsten electrode, shrouded by a protective atmosphere of inert gas, such as argon or helium. The extra weld metal can be...

...courses and qualifications [ Sectional view of a casting mould] Machine moulded In modern foundries, moulds of small and medium sizes are prepared by machines. For mass-production, match-plate patterns are used with the cope pattern attached to an aluminium plate and the drag pattern on the other side of the plate. The plate fits between cope and drag. Ramming of sand can...