If you want to master the precautions for designing die-casting parts, you need to talk about the design basis of die-casting parts, which is easier to understand.

   1. The design of die castings involves four aspects:

a. That is, the requirements of pressure casting on the shape and structure of parts;
b. Process performance of die castings;
c. The dimensional accuracy and surface requirements of die castings;
d. Determination of parting surface of die casting.
The design of die casting parts is an important part of die casting production technology. The following issues must be considered when designing: selection of mold parting surface, opening of gate, selection of ejector pin position, shrinkage of casting, guarantee of dimensional accuracy of casting, casting Prevention of internal defects, relevant requirements for casting holes, relevant requirements for shrinkage and deformation, and the size of machining allowance;

   2. The design principles of die castings are:

a. Correctly choose the material of die casting;
b. Reasonably determine the dimensional accuracy of die castings;
c. Try to make the wall thickness evenly distributed;
d. Add craft round corners at each corner to avoid sharp corners.

   3. Classification of die castings:

   According to the requirements of use, it can be divided into two categories. One type of parts bearing larger load or parts with higher relative movement speed. The items to be inspected include size, surface quality, chemical composition, and mechanical properties (tensile strength, elongation) , Hardness); the other category is other parts, the items to be inspected include size, surface quality and chemical composition.
When designing die-casting parts, it should also be noted that the parts should meet the process requirements of die-casting. The manufacturability of die-casting is considered in terms of the position of the parting surface, the position of the top push rod, the relevant requirements of the casting hole, the relevant requirements of shrinkage and deformation, and the size of the machining allowance. Reasonably determining the parting surface of the die casting surface can not only simplify the structure of the die casting mold, but also ensure the quality of the casting. Requirements for the design of die casting parts.

  To be continued