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Pretreatment technology of stamping type metal plate

A pretreatment and sheet metal technology, applied in the field of sheet metal processing, can solve problems such as collapse angle, affecting the performance of sheet metal products, and the small proportion of bright bands, so as to meet the requirements of stamping forming, reduce the incidence of burrs, and be easy to implement Effect

Inactive Publication Date: 2019-10-08
TAICANG AUKE STORAGE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum alloy material sheet metal often needs to be formed through the stamping process for holes and boundaries, and the aluminum alloy often has defects such as obvious collapse angle, small proportion of bright bands, and many burrs during the stamping process. These defects not only affect the sheet metal. The appearance quality of the product also seriously affects the performance of sheet metal products

Method used

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  • Pretreatment technology of stamping type metal plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The specific processing method is as follows:

[0017] a) Annealing treatment, first put the stamping sheet metal workpiece of aluminum alloy material into the heating furnace, heat it to 550 ° C, keep it for 3 hours, and then cool it to room temperature with the furnace and take it out. After the sheet metal workpiece is annealed, its internal stress is basically eliminated, so that the purpose of stable size, improved plasticity, and reduced deformation and warpage can be achieved in the subsequent stamping process.

[0018] b) Liquid nitrogen immersion cooling treatment, first put the annealed sheet metal workpiece into a -196°C liquid nitrogen environment, soak for 10 hours, then take it out and let it stand for 1 hour, and then rise to room temperature. After the sheet metal workpiece is submerged in liquid nitrogen and cryogenically treated, its plasticity is significantly improved, and the incidence of burrs is significantly reduced.

[0019] c) Pickling treatme...

Embodiment 2

[0022] The specific processing method is as follows:

[0023] a) Annealing treatment, first put the stamped sheet metal workpiece of aluminum alloy material into the heating furnace, heat it to 560 ° C, keep it for 2 hours, and then cool it to room temperature with the furnace and take it out. After the sheet metal workpiece is annealed, its internal stress is basically eliminated, so that the purpose of stable size, improved plasticity, and reduced deformation and warpage can be achieved in the subsequent stamping process.

[0024] b) Liquid nitrogen immersion cooling treatment, first put the annealed sheet metal workpiece into a -196°C liquid nitrogen environment, soak for 8 hours, then take it out and let it stand for 1 hour, and then rise to room temperature. After the sheet metal workpiece is submerged in liquid nitrogen and cryogenically treated, its plasticity is significantly improved, and the incidence of burrs is significantly reduced.

[0025] c) Pickling treatment...

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Abstract

The invention provides a pretreatment technology of a stamping type metal plate. The stamping type metal plate is of an aluminum alloy material. The pretreatment technology comprises the following steps of a) annealing treatment; b) soaking and cooling treatment by liquid nitrogen; c) acid pickling treatment; and d) low-temperature tempering treatment. The invention discloses the pretreatment technology of the stamping type metal plate. The pretreatment technology is simple and convenient to implement, the technology is scientific and reasonable, the technology not only greatly enhances the plasticity of the stamping type metal plate, but also remarkably reduces the burr generation rate, and the stamping forming requirement of the stamping type metal plate is satisfied well.

Description

technical field [0001] The invention relates to a pretreatment process, in particular to a pretreatment process for stamping sheet metal, and belongs to the technical field of sheet metal processing. Background technique [0002] Sheet metal processing is an important processing technology in mechanical processing, and it is also an indispensable process for forming sheet metal products. Sheet metal processing includes traditional cutting, punching, bending and forming methods and process parameters, as well as various cold stamping die structures and process parameters, various equipment working principles and operation methods, and new stamping technology and new technology. The main processes of sheet metal processing are cutting, bending buckle, bending forming, welding, riveting and so on. [0003] At present, in the field of sheet metal processing, aluminum alloy profiles are widely used. Aluminum alloy material sheet metal often needs to be formed through the stamp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04C23G1/12
CPCC22F1/04C23G1/125
Inventor 顾利明
Owner TAICANG AUKE STORAGE EQUIP