Working Conditions Of Hot Work Die Steel

- Jul 19, 2017-

Working conditions: hot extrusion die stress and cold extrusion die is similar to the side, hot extrusion punch in the whole process of the work force is subjected to bending stress with tension and pressure (high pressure, low pressure) alternating stress (tensile fatigue pressure), is also under repeated impact load certain. On the other hand, under the action of cold and thermal stress, the punch is subjected to thermal fatigue and erosion (also known as thermal wear).

Failure modes: thermal fatigue (crazing), crack and surface wear. Performance requirements: the requirements of die materials with high strength in working temperature (fatigue strength and bending fatigue strength in tension and compression), high hardness and high wear resistance, high thermal fatigue resistance, oxidation resistance, abrasion resistance and good thermal conductivity.

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