Ultra-high strength steel hot stamping forming die

Abstract

The invention discloses an ultra-high strength steel plate thermal die cutting and forming die, comprising an upper die seat and a convex die which is fixed on the upper die seat, a lower die seat and a concave die that is fixed on the lower die seat; the concave die is internally provided with a cooling water passage which is connected with a cooling water circulation system. More particularly, the concave die is compose of a trough-shaped concave die seat and a cavity body; the concave die seat is provided with a water inlet and a water outlet; the cavity body is arranged in the concave trough of the concave die seat; a gap is arranged between the cavity body and the concave die seat; the gap is communicated with the water inlet and the water outlet. The die improves cooling speed, ensures the uniformity of cooling, has simple and practical structure, and fast cools the die and the punching parts in the die by the water cooling system of the die, so as to achieve the effect of quenching. As the process is completed under the pressure preservation process of the die, the workpiece has extremely small deformation and the dimension precision of the punching part can be excellently ensured.

Description

technical field [0001] The invention relates to a stamping die, in particular to a hot stamping forming die. Background technique [0002] Nowadays, people generally begin to pay attention to the safety, energy saving and environmental protection of automobiles. The use of ultra-high-strength steel plates to manufacture the body can reduce the weight of the automobile while ensuring the collision safety of the automobile. The most economical way to process ultra-high-strength steel is to use hot forming technology. Looking at other types of hot forming dies for processing ultra-high-strength steel plates, the main disadvantage is that the required equipment is large and complex. Some molds use gas cooling technology to spray cooling gas onto the surface of the workpiece through the pores and air channels processed on the mold to achieve the gas quenching effect on the workpiece. This type of mold structure is complex and expensive. In use, there are many inconveniences in...

AI Technical Summary

Problems solved by technology

This type of mold structure is complex and expensive

In use, there are many inconveniences in the preparation, storage and transportation of cooling gas

Another more backward process is to quickly take out the hot stamping parts and put them directly into the quenching pool. Since the sheet metal parts are thin shell parts, this method will cause serious deformation of the parts, resulting in waste products due to changes in shape and size. high rate

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