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Incremental forming method with auxiliary base for plates

A technology of incremental forming and sheet metal, applied in forming tools, metal processing equipment, manufacturing tools, etc., to relieve tensile stress, improve forming ability, and increase forming ability.

Active Publication Date: 2015-03-04
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the existing forming of large-formed angular sheet metal parts, the present invention provides a sheet metal progressive forming method with an auxiliary base

Method used

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  • Incremental forming method with auxiliary base for plates
  • Incremental forming method with auxiliary base for plates
  • Incremental forming method with auxiliary base for plates

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Experimental program
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Embodiment Construction

[0025] The 3003 aluminum plate was selected as the experimental processing material, and the aluminum plate was cut into 24 pieces of 15×15mm shaped plates on the shearing machine for use in the experiment. 24 sheet metals are divided into 2 groups, respectively adopt the general incremental forming method and the incremental forming method provided by the present invention to process the conical parts with the same shape, the same height and the same forming angle, and the forming angle of the processed conical parts is 75 ° , The forming height is 35mm.

[0026] During the forming process, observe whether the formed part is cracked, and record the processing height when the part is cracked. When the part is cracked, stop processing immediately. By comparing the number of cracks and the cracking time of each group of parts obtained by the two progressive forming methods The processing height is compared with the influence of the forming method on the formability of the sheet ...

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Abstract

The invention discloses an incremental forming method with an auxiliary base for plates and belongs to the technical field of metal plastic processing and molding. The forming method comprises the following steps: firstly arranging a set of auxiliary base device on an existing numerical control incremental forming machine tool, fixing the bottom of a conical auxiliary base on a hydraulic cylinder and adjusting thrust and stroke of the hydraulic cylinder to control lifting of the conical auxiliary base; mounting the auxiliary base device in a clamp of the numerical control incremental forming machine tool, and fixing the bottom of the hydraulic cylinder on the numerical control incremental forming machine tool; then performing three-dimensional modeling and adjusting an inclination angle of the conical auxiliary base, fixing to-be-formed plates on the clamp, and operating the numerical control incremental forming machine tool to complete incremental forming and processing of the plates. By virtue of the method, the forming performance of the plates can be greatly improved; parts with large processing angles can be formed; the method can be universally suitable for forming aluminum plates, can be used for processing aluminum products and can also be used for forming and processing other plates such as steel plates.

Description

Technical field: [0001] The invention belongs to the technical field of metal plastic processing and forming, and in particular relates to a sheet metal progressive forming method with an auxiliary base. Background technique: [0002] Incremental forming is a new type of sheet metal flexible numerical control processing method that has emerged in recent years. It organically combines rapid prototyping technology and plastic forming technology to realize flexible production of sheet metal. Incremental forming technology adopts the idea of ​​"layered manufacturing". The forming tool with simple shape is controlled by computer program, and moves along the vertical and horizontal tracks to form the three-dimensional envelope surface of the part layer by layer, so as to realize the continuous production of sheet metal. Local plastic forming. Incremental forming is different from traditional stamping forming. It does not require special molds or only simple support molds in formi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D31/00B21D37/00
Inventor 钱健清李志庆许铭王涛
Owner ANHUI UNIVERSITY OF TECHNOLOGY