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Metal Casting Tradesperson

 
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General Overview:

Forms sand moulds and cores for the production of metal castings.

Tasks Include:

  • makes full-size section drawings on layout boards to assist in planning for construction and moulding of patterns
  • makes core boxes for sand cores, and fits and fastens parts to form patterns or sections
  • applies parting agents to patterns and positions vents to allow gases to escape
  • fills boxes with sand and packs it in place using hand ramming tools or pneumatic hammers
  • sets lower half of pattern on moulding boards and encloses with frame of lower half of moulding boxes
  • turns moulding boxes over and secures top half of pattern, and fixes top half of moulding box and repeats moulding operation
  • pours molten metal into moulds
  • separates moulding boxes, removes patterns, and trims, smooths and shapes surfaces of castings
  • repairs or rebuilds worn or broken patterns and mould surfaces
  • finishes patterns by applying shellac, lacquer, paint or other finish
  • may carry out sweep moulding by rotating templates to scrape moulds to circular shapes
 
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