Mold mechanical performance requirements of conventional mechanical properties

Mold material performance is by the mold material composition and heat treatment of the organization. Steel is the basic organization of the martensitic matrix and the carbide on the substrate distribution and intermetallic compounds.

The performance of the steel should satisfy some kind of mould rated work completed in performance, but because of all kinds of mold have done on the conditions of use and rated workload indexes are not identical, therefore to the mold performance requirements are also different. And because of the different steel chemical composition and organization affect the performance of a variety of different, even if the same grade of steel is not likely to the optimal values of properties can be obtained at the same time, the general will improve the performance of some loss performance of the other. Therefore, mold workers often depending on the requirement of the work quota and the mold working conditions to choose die steel and the best processing technology, to achieve optimal performance, main and other performance loss minimum.

Performance requirements for all kinds of die steel mainly includes: hardness, strength, plasticity and toughness, etc.

Mechanical properties of the mould requirements - hardness

Characterization of the steel hardness resistance to deformation and contact stress. Measuring hardness of sample preparation, easy to workshop, laboratory equipped with hardness tester, generally as a result, the hardness is easy to determine a performance, and also have a certain relationship, hardness and strength can be obtained by hardness strength conversion relation material hardness value. According to the hardness of the scoped mold categories, such as high hardness (52 ~ 60 HRC), commonly used in cold work mould, moderate hardness (40 ~ 52 HRC), commonly used for hot-work die.