Hot stamping die for automobile parts

Abstract

The invention belongs to the field of parts manufacturing, in particular to a hot stamping die for automobile parts. The hot stamping die for the automobile parts comprises an upper plate, a limit die, a female die, a guide plate, a guide block, a side pressing die, a male die, an ejector rod and a lower plate, wherein the female die, the male die and the side pressing die are in an enclosed type and are distributed with cooling water channels connected with cooling water pipelines. Parts manufactured and formed by means of the hot stamping die have the advantages that the strength grade can reach about 1500Mpa, and the shape stability of the formed parts is good. The hot stamping die is suitable for manufacturing automobile parts which have higher requirements on comfortableness and security and have the strength grade of about 1500MPa, such as bumper bars, crashproof beams, B posts, reinforced pieces thereof and the like; and the hot stamping die also can be used for replacing automobile body parts which have the strength grade of about 1000Mpa and are produced by the traditional process, especially automobile door crashproof bars, and has wide market application prospect in the fields of aviation, aerospace and engineering machinery in which stamping parts with higher strength grade are necessarily used.

Description

technical field [0001] The invention belongs to the field of part manufacturing, in particular to a hot stamping die. Background technique [0002] Hot stamping forming technology is a new technology that utilizes the characteristics of rapid increase in plasticity and ductility and rapid decrease in yield strength of metals at high temperatures to form parts on hot stamping dies for auto parts, and at the same time use die cooling and quenching to achieve ultra-high strength. . Using hot stamping technology can not only overcome the fatal defects of traditional high-strength steel plate forming difficulties and low dimensional accuracy of parts, but also significantly improve the safety and comfort of automobiles, reduce vehicle weight, and reduce gas emissions. Because of these two advantages, the hot stamping process is currently a research hotspot in automobiles, steel and related fields. [0003] Research institutions or enterprises abroad have carried out research on...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a hot stamping die for auto parts. By arranging cooling water pipelines in the die, punch and edge die, the temperature of 20-30°C / S can be increased during hot stamping. Cooling speed for quenching, because of the help of molds to shape, it overcomes the shortcomings of poor shape stability of hot-formed parts

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