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Method And Die Set For Forming Surface In Metal Panel

A panel and module technology, applied in metal processing equipment, transportation and packaging, vehicle parts, etc., can solve problems such as the difficulty of extruding to form brazing surfaces

Active Publication Date: 2017-10-20
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the three-dimensional shape in the exterior surface of the vehicle body, the brazing surfaces on the body side panels often follow very complex three-dimensional paths; Extrusion into the faceplate becomes very difficult to form a satisfactory brazed surface; and often introduces undesirable or unacceptable waviness into the brazed surface

Method used

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  • Method And Die Set For Forming Surface In Metal Panel
  • Method And Die Set For Forming Surface In Metal Panel
  • Method And Die Set For Forming Surface In Metal Panel

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Embodiment Construction

[0022] Those of ordinary skill in the art will recognize that terms such as "above," "below," "up," "down," "top," "bottom," etc. Limitations on the scope of the disclosure are defined by the appended claims. Furthermore, the invention may be described herein in terms of functional and / or logical block components and / or various processing steps. It should be appreciated that such block components may be comprised of any number of hardware, software, and / or firmware components configured to perform the specified functions.

[0023] Referring to the drawings, in which like numerals indicate like parts throughout the several views, a method of forming a surface 20 in a panel blank 22 is depicted. Surface 20 may comprise any formed surface in extruded panel blank 22 . Exemplary embodiments of the process described herein teach forming a brazing surface in a panel blank, thus surface 20 is referred to as brazing surface 20 . It should be understood, however, that the surface 20 ...

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PUM

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Abstract

A method of forming a surface in a panel includes positioning a panel blank between a stationary die and a moveable die of a die set, and moving the moveable die toward the stationary die to deform the panel blank therebetween. Positive stresses in the panel blank are maintained in the region of the panel blank that will form the surface by forming a bead along a length of the surface to be formed in the panel blank, as the moveable die moves toward the stationary die. The moveable die continues to move toward the stationary die, while maintaining positive stresses in the panel blank in the region of the panel blank that will form the surface, to further deform the panel blank into a formed shape that includes the surface.

Description

technical field [0001] The present disclosure generally relates to a method of forming a surface in a metal panel, and a die set for forming the surface. Background technique [0002] Extrusion of metal panels into complex shapes often results in waviness or deviations in the surface of the formed panel. This deviation is undesirable and must be smoothed out before other operations may be performed on the panel, such as painting or laser brazing, or in order to provide a high quality complete appearance. [0003] Laser brazing is a process that can be used to attach two metal panels together. The two panels are fitted together along the seam, and a laser brazing process attaches the two panels together along the length of the seam. Typically, each panel will be formed to include a brazing surface, the two panels fitting together and defining a seam therebetween. To achieve high-quality cleanliness, the laser brazing process requires a very tight seam between the two panel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22B21D24/04B21D53/88
CPCB21D22/22B21D24/04B21D53/88B21D19/08B21D22/26B21D47/00
Inventor B·J·比彻姆B·P·胡诺J·G·佩克
Owner GM GLOBAL TECH OPERATIONS LLC