Hot punch forming technology

A hot stamping forming and hot stamping forming technology, applied in the field of hot stamping, can solve the problems of easy falling off, prolonged production cycle, affecting the surface quality of parts, etc., and achieve the effect of avoiding damage

Inactive Publication Date: 2016-01-20
GUILIN TRYIN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oxide skin not only affects the surface quality of the parts, but also tends to fall off during stamping. It is attached to the surface of the mold and must be removed in time, otherwise it will affect the continuity of production; Poor resistance, the scale must be removed before spraying and other treatments to improve the rust resistance of the parts, which increases the production cost and prolongs the production cycle; and the hardness of the scale is high, which may scratch the surface of the mold

Method used

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  • Hot punch forming technology

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Embodiment Construction

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0022] Such as figure 1 Shown, the present invention comprises the following steps:

[0023] S01, pretreating the metal blank;

[0024] S02, uniformly coating the surface of the metal blank with an anti-oxidation coating;

[0025] S03, cutting the sheet according to the size of the hot stamping part;

[0026] S04, heating the mold, heating the mold to 200°C-450°C;

[0027] S05, heating the metal blank, heating the metal blank to 960°C-1200°C;

[0028] S06, moving the heated metal blank to the mold for stamping;

[0029] S07, taking out the stamped mold and putting it into water for quenching.

[0030] In S01, the pretreatment includes washing and drying.

[0031] The cleaning step includes rinsing with high-p...

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Abstract

The invention relates to the technical field of hot punch forming, in particular to a hot punch forming technology. The hot punch forming technology includes the following steps that firstly, a metal blank is pretreated; secondly, the surface of the metal blank is evenly coated with an oxidation resistance coating; thirdly, a plate is cut according to the size of a hot punch formed part; fourthly, a die is heated to the temperature of 200-450 DEG C; fifthly, the metal blank is heated to the temperature of 960-1200 DEG C; sixthly, the heated metal blank is moved into the die to be punched; and seventhly, the punched die is taken out and put into water to be quenched. According to the hot punch forming technology, in the process of the hot punch forming technology, the metal blank is pretreated and coated with the oxidization resistance coating, a metal product can be protected against surface oxidation disengagement at a high temperature through the oxidization resistance coating, and damage of an oxide skin to the die is avoided in the forming process.

Description

technical field [0001] The invention relates to the technical field of hot stamping, in particular to a hot stamping forming process. Background technique [0002] At present, the application of ultra-high-strength steel has become one of the mainstream development trends in automobile and other manufacturing fields, and hot stamping is an important way to realize ultra-high-strength steel parts. [0003] Stamping and forging of metal products at high temperature will make the product forming easier. During this operation, the surface of the metal product needs to be protected to avoid high temperature oxidation during the metal manufacturing process. Therefore, high temperature oxidation protection is a key issue that needs to be solved in the hot stamping forming process. In the hot stamping forming process, when the plate at high temperature is in contact with air, the surface will be severely oxidized and scale will be formed. Even if it is heated in a heating furnace w...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D3/12B05D3/02B08B3/02B21D22/02
Inventor 周斌李勇
Owner GUILIN TRYIN TECH CO LTD
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