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Method Of Trimming Ultra High Strength Hot Stamping Steel Sheet Using Coining

An ultra-high-strength, hot-stamping technology, which is used in the field of trimming ultra-high-strength hot-stamped steel sheets by molding, can solve problems such as high cost, component corrosion, and low productivity, reduce production costs, prevent steel sheets from annealing, and improve The effect of production efficiency

Inactive Publication Date: 2017-09-26
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high strength obtained after forming and cooling the hot-stamped steel sheet, there is a problem that it is impossible to cut an ultra-high-strength hot-stamped steel sheet by using a press machine in the related art
However, laser trimming results in low productivity, the use of expensive laser trimming equipment, and the cost of extensive maintenance
For this reason, there is a problem that hot-stamped steel sheets are less efficient in terms of cost and productivity compared to steel sheets in the related art
Also, there is a problem that due to the nature of the laser, welding chips, spatter, etc. are generated after the process of cutting the edge of the part, the part may be corroded, and the steel plate is annealed (softened) due to the heat caused by the laser

Method used

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  • Method Of Trimming Ultra High Strength Hot Stamping Steel Sheet Using Coining
  • Method Of Trimming Ultra High Strength Hot Stamping Steel Sheet Using Coining
  • Method Of Trimming Ultra High Strength Hot Stamping Steel Sheet Using Coining

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Embodiment Construction

[0031] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0032] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Based on the principle that an inventor can properly define the concept of terms so as to describe his / her own invention by the best method, the terms and w...

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Abstract

The present invention may provide a method of trimming a ultra high strength hot stamping steel sheet using coining, which includes a forming step and a coining step which are simultaneously performed on a hot stamping steel sheet.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2016-0032440 filed on March 18, 2016, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a method of trimming an ultra-high strength hot stamped steel sheet, and more particularly to a method of trimming an ultra high strength hot stamped steel sheet using coining, the method being controlled by a pressure The machine is capable of hard trimming by simultaneously forming an ultra-high-strength hot-stamped steel sheet by performing stamping. Background technique [0004] At present, environmental issues have received global attention, and all industries seek to find a way to reduce fuel to deal with environmental issues. As a solution for achieving reduction in fuel usage in the automobile industry, methods of improving the efficiency of automobile engines and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D28/02
CPCB21D28/02B21D35/002B21D22/022B21D35/005B21D24/16B21D22/02B21D28/00
Inventor 朴壮雨
Owner HYUNDAI MOTOR CO LTD