Mold selection is a very important part of the entire m […]
Mold selection is a very important part of the entire mold making process.
Mold selection needs to meet three principles. The mold meets the work requirements of wear resistance, toughness, etc. The mold meets the process requirements, and the mold should meet the economic applicability.
1, wear resistance
When the blank is plastically denatured in the mold cavity, it flows and slides along the surface of the cavity, causing severe friction between the surface of the cavity and the blank, which causes the mold to fail due to wear. Therefore, the wear resistance of the material is one of the most basic and important properties of the mold.
Hardness is a major factor affecting wear resistance. In general, the higher the hardness of the mold part, the smaller the wear amount, and the better the wear resistance. In addition, the wear resistance is also related to the type, quantity, shape, size and distribution of carbides in the material.