Deep Freezing

Generally the lifetime of tools is affected by their hardness and wear-resistance. But additional characteristics like dimensional accuracy and a low degree of residual stress are as well indispensable preconditions for faultless functioning. Micro-structural changes, like retained austenite transformation during the use, can cause early rejections which should be avoided.

Retained austenite is termed to be the part of austenite which remains in the microstructure after quenching to room temperature. Under some circumstances, especially with high alloyed tool steels, the retained austenite can have significant influence on the quality and usability of the material.

The targeted transformation of retained austenite by combining conventional heat treatment technology with deep freezing is in most cases the most suggestive solution in matters of technology and economics in order to achieve the predetermined material properties.

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DIN EN ISO 9001 : 2000 Nadcap