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Forming process and hardness requirements of dry powder pressing ceramic tube mold

Apr 12, 2019

The hardness and strength of the dry powder pressing ceramic tube mold are not in a completely proportional relationship during the operation, but the higher the hardness, the worse the toughness will be. When the mold is used, the mold will be produced at high temperature. Under alternating conditions, alternating stress is generated. If the toughness of the mold is not good and the stress is not removed in time, it is easy to crack. In general, the hardness of a small simple product core can be suitably higher, controlled at HRC50~52 degrees, but for large molds or complex molds, the hardness of the core is controlled at HRC 46~48 degrees. There is also a recommended hardness of the mold material of different compositions.

 

Dry powder pressing ceramic tube mold forming has been applied to the forming process of various industrial machinery parts, including gears, wheels, and automobile connecting rods. Powder metallurgy forming is the processing of a loose powder into a compact having a certain size, shape and a certain density and strength. Conventional forming methods include press forming, isostatic pressing, extrusion forming, roll forming, grouting, and hot die casting. DEFORM metal powder forming technology can realize computer numerical simulation of powder forming process, predict powder forming defects and optimize processing parameters.

 

Dry powder pressing ceramic tube molds in terms of manufacturing mechanical parts, the powder metallurgy method for making mechanical parts is a kind of less cutting and no cutting process, which can greatly reduce the amount of cutting and save machine tools, save metal materials and improve Labor productivity. When manufacturing mechanical structural parts by metal powder metallurgy, the material utilization rate is higher than that of other processing methods, and the energy consumption is low.

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