Drawing specification for alu/zinc cast
Drawing specification for alu/zinc cast
(OP)
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 ASTM E155 etc.. 5% etc..
DO you have standard note applicable to drawing to specify the requirment of the material and surface finish quality..
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 ASTM E155 etc.. 5% etc..
DO you have standard note applicable to drawing to specify the requirment of the material and surface finish quality..





RE: Drawing specification for alu/zinc cast
RE: Drawing specification for alu/zinc cast
The design is very much like a chocolate box with thin walls. The top of the walls will have the gaskets. These walls need to be very good finish and flat top edge. The beading is about 1.35mm high and the compression is 30%. a compression of 10% will reduce the shield effectiveness. This is the main constraint for flatness tolerance and no craks or gas hole on the top of the walls.
RE: Drawing specification for alu/zinc cast
RE: Drawing specification for alu/zinc cast
http://www.thixomat.com/
http:/