Some aspects of cryogenic processing of tool steels.

Kolář Zdeněk - Pilana Knives a.s. Hulín (Czech Republic)

The article describes the problems associated with the research of structural changes after cryogenic processing of hardened tool steels. If metalographic saw is used to improve the condition of steel, diferently processed samples are used and the structural changes are observed by monitoring of accoustic effects that arise during the cutting.
The next section, the article focuses on the surface quality of the examined samples.

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