Auxiliary incremental forming device heating metal plate by using electrical discharges

A technology of incremental forming and sheet metal, which is applied in the field of mechanical manufacturing and processing, and can solve problems such as wrinkling, cracking, and uneven metal flow

Inactive Publication Date: 2019-02-22
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the incremental forming of metal sheets is carried out at room temperature. Due to the uneven flow of metal during forming, it is easy to produce defects such as wrinkles and cracks,

Method used

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  • Auxiliary incremental forming device heating metal plate by using electrical discharges

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Embodiment Construction

[0006] The bracket 8 is fixed on the bottom plate 9 and fixed on the machine tool workbench 10 through the clamping mechanism 11, the plate 7 is pressed together with the bracket 8 through the blank holder 6, and the tool head 5 is connected with the main shaft of the machine tool through the tool holder; One end of the anode 3 and the spark cathode 12 are respectively connected to the positive and negative poles of the power supply 1, and the other ends are kept in contact with the plate 7 and the blank holder 6 respectively; the adjustable resistor 2 is connected in series between the spark anode 3 and the power supply 1 In the circuit, the size of the discharge intensity is changed by adjusting the size of the resistance in the circuit, and the control of the forming temperature is realized; the vibrator 4 is fixed with the EDM anode 3 or the EDM cathode 12, and the Vibration, frequent alternating contact and disconnection between the electric spark anode 3 and the plate 7, ...

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Abstract

The invention relates to an auxiliary incremental forming device heating a metal plate by using electrical discharges. The auxiliary incremental forming device is characterized in that a workpiece isfixed on a support, and the support is fixed on a machine tool. During forming machining of the metal plate, a vibrator drives an electrical discharge anode to vibrate together, then the electrical discharge anode is in contact with the plate frequently and alternately, the high-strength electrical discharges are generated, then the plate is locally heated, so that machining conditions are greatlyimproved, and the auxiliary incremental forming device is especially used for a thick plate; and the auxiliary incremental forming device has the advantages that the structure is simple, the work isreliable, the installation operation and the maintenance are convenient.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing and processing, and more specifically relates to an electric spark heating metal plate auxiliary progressive forming device. Background technique [0002] Due to its advantages of high degree of automation and no need for molds, incremental forming of sheet metal has been widely used in automobile manufacturing, aerospace, medical treatment, art sculpture and other fields. Most of the incremental forming of sheet metal is carried out at room temperature. Due to the uneven flow of metal during forming, it is easy to produce defects such as wrinkles and cracks, especially for high-strength, high-hardness and difficult-to-process materials such as stainless steel, magnesium alloys, and titanium alloys. , forming defects are particularly significant. Contents of the invention [0003] The present invention draws on the principle of electric discharge machining, and the present invention incl...

Claims

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Application Information

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IPC IPC(8): B21D31/00B21D43/00
Inventor 王彤蒋文君明龙
Owner HARBIN UNIV OF SCI & TECH
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