2016年5月2日星期一

Powder metallurgy processing technology


In order to overcome these problems, several techniques (for the industry are unique) are applied. The surface porous structure is often closed by infiltration. Additional free cutting is usually required. Recently, design has been used to increase the cleanliness of powder metallurgy and reduce heat treatment when improvement of oxide and carbide powder production technology.

The surface of the porous structure enclosed by metal (usually copper) or polymer infiltration completed. Once the infiltration acts as a lubricant that, most of the experimental data show that the real advantage is shut down to prevent the cutting edge of micro fatigue surface of the porous structure and the. Vibration reduction to improve tool life and surface finish. The use of the most dramatic infiltration showed that when the porous structure of closed tool life increased by 200%.

Such as MnS, S, MoS2, MgSiO3 and BN and other additives known to improve tool life. These additives by the chip more easily from a workpiece separation, chip breaking and prevent bue and lubrication cutting edge to improve machinability. Increase the quantity of the additive can improve the workability but lower strength and toughness.


Powder atomization technology control of sintering and heat treatment furnace gas to clean powder and parts production possible, minimizing the occurrence of surface oxide inclusions and carbides.

没有评论:

发表评论