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Method for increasing the plastic deformability of workpiece by using absorption agent

An absorbent and plastic technology, applied in the direction of forming tools, manufacturing tools, furnace components, etc., can solve the problem of not giving the heating device description

Inactive Publication Date: 2019-03-15
COSMA ENG EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As alternatives to induction coils, impregnation baths, laser heating devices or contact heating with heating plates are mentioned, however no detailed description is given for any of the alternative heating devices

Method used

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  • Method for increasing the plastic deformability of workpiece by using absorption agent
  • Method for increasing the plastic deformability of workpiece by using absorption agent
  • Method for increasing the plastic deformability of workpiece by using absorption agent

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Embodiment Construction

[0042] figure 1 The production plant according to the invention is shown with an irradiation station in the form of an infrared furnace 1 and a coating station 2, by means of which absorber can be applied to metallic workpieces 5 . However, other ovens can also be used instead of the infrared oven.

[0043] In the exemplary embodiment shown, the metallic workpiece is a thin, planar plate made of a precipitation-hardened aluminum alloy. However, it is also conceivable to use differently shaped workpieces, for example circular or polygonal profiles or solid workpieces. The production plant also has a cleaning station 3 by means of which absorbent can be removed from metallic workpieces. The production plant can also have a feed station 4 and a stacking station 7, in which the individual workpieces are removed from the first stack 6 and fed to the production plant, in which the individual workpieces pass through the production line The devices are then stacked onto a second s...

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PUM

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Abstract

The invention relates to a method for at least locally increasing the plastic deformability of a metal workpiece (5), which has an aluminum alloy in particular. The workpiece (5) is supplied with a radiation in order to increase the temperature of the workpiece. The invention also relates to a corresponding manufacturing device. The aim of the invention is to allow a higher and faster heating of specific regions of a metal workpiece in a controlled manner compared to other regions, wherein a higher and faster heating is to be achieved by using the same radiation power while the surface of theworkpiece is to be influenced as little as possible. This is achieved in that an absorption agent (10) is applied at least locally onto the workpiece (5) prior to supplying the workpiece (5) with theradiation. The degree of absorption of the absorption agent (10) for the radiation is higher than the degree of absorption of the workpiece (5) for the radiation.

Description

technical field [0001] The invention relates to a method for at least partially increasing the plastic deformability of metallic workpieces, as well as an associated device and the corresponding use of a mixture for coating onto metallic workpieces. Background technique [0002] Methods of the type mentioned at the outset are known from practice in which a metallic workpiece, for example an aluminum sheet, is heated in a furnace completely by radiation absorbed by the surface of the workpiece, wherein the plastic deformability of the workpiece is increased. In this case, the proportion of radiation absorbed by the workpiece surface depends on the degree of absorption of the material of the workpiece. In addition, the workpiece is heated evenly. In aluminum alloys, especially in such aluminum alloys containing the alloying elements copper and magnesium, structural changes occur at elevated temperatures which increase the solubility of the alloying elements in the crystal lat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/00B05D5/00B05D3/00C21D1/34C22F1/04
CPCC21D1/34C22F1/00C22F1/04C21D1/68F27D11/12C21D2221/00F27D2099/0028B21D37/16
Inventor 托马斯·赖宁格安德烈亚斯·施特兰茨克里斯蒂安·尤日切克
Owner COSMA ENG EURO GMBH