Modularized differential temperature forming hot punching mold

Abstract

The invention relates to a modularized differential temperature forming hot punching mold, which comprises a template, heating modules and cooling modules, wherein the heating modules are respectively and fixedly arranged at the two sides of the template through screw bolts, the cooling modules are respectively and fixedly arranged in the middle of the template, heating rods are arranged in the heating modules, the uniform heating is carried out through the heating rods, water inlet and outlet holes are formed in the contact surfaces of the cooling modules and the template in a longitudinal direction, a plurality of surface cooling pipelines are arranged inside the cooling modules along the shape of the work surface, water inlet and outlet openings are correspondingly formed in the template, and the cooling modules are cooled through circulation water. A part of module is heated, and the other part of module is cooled, so the goal of regional cooling is reached, and the hot punching part with the performance gradient is obtained. The modularized differential temperature forming hot punching mold has the advantages that the structure is reasonable, the cooling speed of different positions is controlled, and the temperature gradient can be generated on the same hot punching part so that the hot punching part has good integral mechanical property.

Description

technical field [0001] The invention belongs to the field of hot stamping forming, in particular to a modularized differential temperature forming hot stamping die. Background technique [0002] As the requirements for environmental protection and lightweight of automobiles are getting higher and higher, while ensuring safety, in order to cope with this development trend, the hot stamping technology of high-strength boron steel plate is a development trend of the automobile industry. [0003] After hot stamping, the strength of stamping parts exceeds 1400MPa, and it can form parts with complex shapes, which is beneficial to eliminate defects such as springback. It has a wide application prospect in automobile parts such as middle channel, B pillar, and anti-collision plate. [0004] Due to the continuous improvement of the lightweight and safety performance requirements of automobiles, stamping parts must not only have high strength, but also need to have high plastic deform...

AI Technical Summary

Problems solved by technology

[0004] Due to the continuous improvement of the lightweight and safety performance requirements of automobiles, stamping parts must not only have high strength, but also need to have high plastic deformation capacity. Therefore, stamping parts with comprehensive mechanical properties have a wide range of application prospects. At present, In order to achieve the comprehensive performance of stamping parts, most stamped and formed parts of different materials are used for welding, and a small number of laser tailor welded blanks are used to stamp and form auto parts, and the same material is used for forming and has better comprehensive mechanical properties. not often

So far, there is no dedicated modular differential temperature forming hot stamping die on the market

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