Hot stamping deep drawing mold of ultrahigh-strength steel box-shaped part

Abstract

The invention relates to a hot stamping deep drawing mold of an ultrahigh-strength steel box-shaped part, and belongs to the technical field of hot stamping forming equipment. The box-shaped part can serve as a research object; on the basis of combining an external press with a servo ejector rod system, such deep drawing forming performances as blank holder force and stamping speed of ultrahigh-strength boron manganese steel under different forming process parameters are researched; a blocking structure is adopted to uniformly distribute cooling water ways in a mold convex mold, a concave mold, a blank holder and a movable cushion block; and on the basis of combining with an external cooling water flowing speed control system, the influence on overall performances of the final box-shaped part by different quenching control processes can be researched.

Description

technical field [0001] The invention relates to a hot stamping deep drawing die for an ultra-high-strength steel box-shaped part, which belongs to the field of hot stamping forming equipment and technology. Background technique [0002] In the face of the increasingly serious energy crisis and environmental pollution, the automobile industry, which is the main source of energy consumption and exhaust emissions, has become an urgent need for energy conservation and emission reduction. Body lightweight technology is an effective solution proposed by the automobile manufacturing industry in response to "energy saving and emission reduction" measures, that is, the use of relatively high-strength materials, such as aluminum alloys, magnesium alloys, ultra-high-strength steel, etc., with less material Reach or exceed the original structural strength, so as to achieve the purpose of reducing the quality of the vehicle. Since ultra-high-strength steel is added with trace total elem...

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Problems solved by technology

[0005] CN201120136029: "Thermoforming Experimental Die with Cooling Waterway" proposes a thermoforming mold with cooling waterway, which adopts block-type convex and concave molds, only to meet the requirements of drilling linear cooling holes in the convex and concave molds. Convenient and easy to repair, but not good in terms of quench uniformity and strength

[0006] Utility model patent CN201220347545: "Hot Stamping Deep Drawing Test Die" proposes a hot stamping experimental die that can change blank holder force, but it has no quenching function, so it can only study the effect of blank holder force on the deep drawing performance of cylindrical parts at high temperature impact, the research function is relatively simple

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