<1> according to the size precision stamping die precision requirements to determine,if the stamping parts size precision quarter cases higher quality requirements, should be used in common punching die, punching and animal husbandry by ordinary,product size precision of single operation dies out is low, surface and continuousmode than with the mold precision is low, so in the stamping precision is high (more than 4 and the precision and surface quality requirements) flat, using the compound die structure than the continuous mould good.

　　<2> according to the stamping production batch to determine how much is the use ofsimple die structure is conventional die structure, in general, simple die service life is short, the cost is low, and the conventional die structure and long service life, high cost, therefore, for stamping parts required number soon or substantial production,should use simple die structure is more appropriate, and stamping parts to a large number, need to produce a lot of, should be considered in conventional die structureis generally used a longer service life.

　　<3> according to the stamping shape, batch size and accuracy requirements, whether there is a guiding device can choose to die, in general, no guide die is mainly applied to small batch production of the single process of blanking die, in addition, no guide die on the product shape, size, thickness, not to any restrictions, products in 6mm thethickness and the guide column mode only blanking sizes up to 300mm, the size of theguide plate, stamping die is smaller.

　　<4> according to the red half thickness to choose die structure unloading device type,for example, when the blanking thicker sheet products, if the surface flatness and the precision requirement of step is not high, can use rigid fixed stripper, such asprogressive die structure, when the surface flatness and accuracy requirement is high, it should be selection of compound die structure with elastic unloading machine.

　　<5> according to the sheet shape can choose to die structure form, without the guideand guide pillar compound die for stamping material shape without any requirements,leftover materials can also be blanking, continuous and guide mode is different, he must seasoning and roll material requirements are rules.