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Heating device capable of producing hot stamping parts with segmented-strength and production line with same and hot stamping forming method

A heating device and hot stamping technology, applied in the field of heating devices for hot stamping parts, can solve the problems of unsatisfactory and unrealizable soft zone process, narrow transition zone of soft and hard zone, etc.

Active Publication Date: 2018-01-09
江西普热斯勒先进成型技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is: the various processes for manufacturing soft areas in the prior art are not ideal, when the hot-pressed product requires that the boundary line between the soft area and the hard area is an arbitrary curve and any direction, and the soft and hard area When the transition zone is very narrow, the existing technology cannot realize

Method used

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  • Heating device capable of producing hot stamping parts with segmented-strength and production line with same and hot stamping forming method
  • Heating device capable of producing hot stamping parts with segmented-strength and production line with same and hot stamping forming method
  • Heating device capable of producing hot stamping parts with segmented-strength and production line with same and hot stamping forming method

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Embodiment 1

[0053] see Figure 3-5 A heating and cooling device 30 is shown, generally speaking, the heating and cooling device 30 includes a profiling heater and a pressurizing device, and the pressurizing device pressurizes the profiling heater. The pressurizing device preferably uses a hydraulic cylinder, which is a prior art and is not the focus of the present invention, and is not shown in the figure.

[0054] The heating and cooling device 30 includes: an upper heat insulating shell 301 and a lower heat insulating shell 302 arranged oppositely, one or both of the upper heat insulating shell 301 and the lower heat insulating shell 302 are connected to the pressurizing device , and pushed by the pressure device. The upper profiling heat transfer plate 303 and the lower profiling heat transfer plate 304 respectively arranged on the oppositely arranged surfaces of the upper adiabatic housing 301 and the lower adiabatic housing 302 are arranged on the upper adiabatic housing 301 and the...

Embodiment 2

[0070] This embodiment is basically the same as the first embodiment, the main difference lies in the structure of the heating and cooling device 30 .

[0071] In the first embodiment above, the soft regions 2 and 3 of the sheet are located at the outer periphery, but in this embodiment, the soft region 1b of the sheet is located inside, see Figure 6 . Between the soft zone 1b and the hard zone 1a of the web is a transition zone 1c of defined size.

[0072] The heating and cooling device 30 proposed by the invention is also well adapted to Figure 6 Thermoforming process of the blank shown. The specific solution is also similar to the first embodiment, that is, adjacently arranged profiling heat transfer plates and cooling blocks are arranged on the heat insulating shell, the profiling heat transfer plates correspond to the outline of the hard zone 1a, and the cooling blocks Corresponding to the contour of the soft zone 1b, the cooling block is surrounded by profiled heat ...

Embodiment 3

[0074] Furthermore, the idea of ​​the present invention is also applicable to a more complicated arrangement of soft and hard areas of the material. For example, a tablet has a hard zone, a subhard zone and a soft zone, wherein the hard zone needs to achieve complete austenite transformation, so the temperature after final heating is above 860°C, preferably above 900°C; the secondary hard zone needs Realize partial austenite transformation, so the temperature after final heating is between 700°C and 860°C, preferably between 750°C and 820°C; the soft zone does not need to realize austenite transformation, so the temperature after final heating Below 700°C, preferably only around 600°C.

[0075] Correspondingly, the structural arrangement of the heating and cooling device 30 is as follows: corresponding to the hard area, sub-hard area and soft area, the first profiling heat transfer plate, the second profiling heat transfer plate, Hot plate and cooling block. Each profiling h...

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Abstract

The invention discloses a heating device capable of producing hot stamping parts with segmented-strength and a production line with the same and a hot stamping forming method. The heating device comprises a separated heating and cooling device and a final heating device; the heating and cooling device comprises an upper heat insulation shell and a lower heat insulation shell which are oppositely arranged; a pressurization device which is connected with one or both of the upper heat insulation shell and the lower heat insulation shell; and at least one of the oppositely arranged surfaces of theupper heat insulation shell and the lower heat insulation shell is provided with a copying heat transfer plate and a cooling block, the copying heat transfer plate and the cooling block are adjacently arranged, a heater is arranged at the copying heat transfer plate, and a cooling water channel is arranged in the cooling block. According to the heating device capable of producing the hot stampingparts with segmented-strength and the production line with the same and the hot stamping forming method, the material sheet is static in the heating and cooling device, the positions, the curves andthe directions of different strength areas can be randomly arranged, and soft and hard transition areas can be quite narrow.

Description

technical field [0001] The invention relates to the technical field of hot stamping, in particular to a heating device capable of producing hot stamping parts with partition strength, a production line with the heating device and a hot stamping method. Background technique [0002] In the current hot stamping products, more and more products require different strength partitions. Moreover, there are more and more requirements for soft areas to appear in different positions on a product. For example, the B-pillar reinforcement plate of an automobile, in addition to requiring a soft zone with lower strength at the lower part of the body, also requires a soft zone at the welding position on both sides of the B-pillar, the transition zone between the welding soft zone and the hard zone The requirements are very narrow. This poses an unprecedented challenge to fabricating soft regions according to existing technologies, which cannot meet this requirement well. [0003] There a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D37/16C21D1/18C21D1/673
CPCC21D1/18C21D1/673B21D22/022B21D37/16
Inventor 安健王波
Owner 江西普热斯勒先进成型技术有限公司
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