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home > products > cast products > die casting process

Die casting process

Die casting is the process of forcing liquid metal under pressure into cavities also known as dies. The die casting method is especially suited for applications where a large volume of small to medium sized parts are needed with good detail, a fine surface quality and dimensional consistency.

Process:
  • the mould is sprayed with lubricant and closed. The lubricant has two purposes, firstly to help control the temperature of the die and secondly, to assist in the removal of the casting from the mould
  • Molten metal is then shot into the die under high pressure. Once the die is filled the pressure is maintained until the casting has cooled and hardenend
  • The die is then opened and the shot (shots are different from castings because there can be multiple cavities in a die, yielding multiple castings per shot) is ejected
  • Finally, excess material which includes the gate, runners, sprues and flash, must be separated from the castings
  • Often a secondary operation is performed to produce features not readily castable, such as tapping a hole, polishing, plating, buffing, or painting.
Die casting process

Jinlogic’s expertise in supplying die castings is second to none as is our knowledge of Chinese tool-making and equipment. We are perfectly placed to source your castings competitively and to the right quality.