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  1. recho2000

    Drawing specification for alu/zinc cast

    The end application is a shield for RF noise on a printed circuit board. The mechanical property for strenght are not critical. However the surface finish finish of the parts needs to be good to allow dispensing of silicon. The design is very much like a chocolate box with thin walls. The top of...
  2. recho2000

    Drawing specification for alu/zinc cast

    Help, I am new to the casting world. I would like to complete my details drawing and add specification to ensure that the manufacturer will provide a good casting. I put all the dimension tolerance that I need. I am not sure of the specification that are regonize for : Crak Gas hole porosity...

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