Temperature control type stamping die for high-strength steel plate and method

Abstract

Provided are a temperature control type stamping die for a high-strength steel plate and a method. The temperature control type stamping die for the high-strength steel plate comprises the high-strength steel plate, a cooling system, a temperature measurement system, an upper die module and a lower die module, wherein the upper die module and the lower die module are horizontally arranged and closed to conduct stamping forming on the high-strength steel plate, an infrared thermal imager collects temperature data of the rounded corner of the end of a concave die of the upper die module after completing each stamping and displays through a computer, and the cooling system adopts vent holes formed in air delivery pipes on the peripheries of parting positions to conduct cooling on the upper die module, the lower die module and a forming part of the high-strength steel plate through air cooling according to the temperature variation data. According to the temperature control type stamping die for the high-strength steel plate and the method, modification on the stamping die is not necessary, temperature measurement and temperature control are both completed outside the stamping die, the stamping die can be used repeatedly, and the loss of the stamping die in the continuous batched stamping process of the high-strength steel plate is avoided.

Description

technical field [0001] The invention relates to a technology in the field of high-strength steel plate stamping, in particular to a temperature-controlled stamping die and method for high-strength steel plates with a tensile strength not lower than 270MPa. Background technique [0002] With the continuous improvement of the strength and lightweight requirements of automobiles, high-strength steel plates have gradually become the preferred material in the modern automobile manufacturing process. The stamping process has many advantages such as high production efficiency, high material utilization rate, excellent product quality, and good process adaptability, and is widely used in the production of the automobile industry. Sheet metal stamping parts occupy a large proportion in the structure of automobile body, and most of them are formed by cold stamping process. During the cold stamping process of high-strength steel sheets, friction and heat will be generated between the ...

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Problems solved by technology

However, this technology cannot realize real-time monitoring of the temperature of the die head of the stamping die, and the cooling effect is likely to be uneven due to the cooling nozzles installed only on both sides of the mold. The loading and unloading cause interference

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