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Centering and selective heating of blanks

A centering and blank technology, applied in the field of centering systems, can solve problems such as increased cost and time-consuming manufacturing process

Inactive Publication Date: 2019-04-02
AUTOTECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods add another process step, which increases the cost and makes the manufacturing process more time-consuming

Method used

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  • Centering and selective heating of blanks
  • Centering and selective heating of blanks
  • Centering and selective heating of blanks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] figure 1 The blank 220 in the thermoforming line 200 is shown. The blank 220 may be conveyed through the furnace 210 by a conveyor system 230, which includes, for example, a plurality of conveyor rollers or conveyor belts, where the speed of the conveyor can be controlled by a motor. The blank 220 may be heated to a predetermined temperature in the furnace, for example, heated to above the austenitizing temperature, so that the blank 220 is ready for subsequent processes. Depending on the material of the billet, the temperature in the furnace 210 and the time the billet must be held in the furnace can vary. In some embodiments, the blank is heated above the Ac3 temperature for 5 to 10 minutes.

[0049] The heated billet 220 can exit the furnace 210 through a door (not shown) that is configured to open when the billet 220 arrives, and to close again when the billet 220 has left the furnace 210. The blank 220 may be transported to a centering system 240 (e.g., a centering ...

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PUM

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Abstract

Centering systems for centering blanks outputted from a furnace in a hot stamping line are provided, the centering system comprising a centering table and a heating system for heating one or more selected zones of the blank while arranged on the centering table. Also provided are methods for manufacturing steel components having hard zones and soft zones, wherein the soft zones are of less mechanical strength than the hard zones. The methods comprise heating a steel blank in a furnace, centering the heated blank on a centering table arranged downstream from the furnace, heating one or more selected zones of the heated blank while the blank is on the centering table, wherein the selected zones are the zones of the blank which are destined to form the hard zones; transferring the blank to apress tool to hot forming the blank, and quenching the selected zones of the blank destined to form the hard zones.

Description

[0001] The present disclosure relates to a centering system for blanks, and more specifically to a centering system including a heating system. The present disclosure also relates to a method for manufacturing a steel part, the method including hot forming a blank. Background technique [0002] In the automotive industry, the development and implementation of lightweight materials and components is becoming more and more important to meet the standards used to manufacture lighter vehicles. The demand for weight reduction is particularly affected by the reduction of CO 2 Target driven emissions. In addition, the growing concern for occupant safety has also led to the use of materials that improve the integrity and energy absorption of the vehicle during a collision. [0003] Hot stamping is a process that allows the manufacture of thermoformed structural parts with specific properties, which may include features such as high strength, reduced part thickness, and lightness. [0004] ...

Claims

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Application Information

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IPC IPC(8): C21D9/46C21D1/34C21D1/673
CPCC21D9/0068C21D9/46C21D1/34C21D1/673C21D2221/00C21D1/18B21D22/022B21D37/16
Inventor M·洛佩兹拉赫J·卡斯蒂利亚莫雷诺D·梅里诺费尔南德斯O·斯特劳布
Owner AUTOTECH ENG