Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method

A technology for cutting processing and process improvement, which is applied in the field of processing process improvement and wire electric discharge processing aluminum alloy, which can solve the problem of light and dark spots and stripes on the surface of the processed workpiece, affecting the surface roughness and processing efficiency of the workpiece, and the selection of discharge parameters Inappropriate and other problems, to achieve the effect of simple and reasonable process improvement method, good processing surface roughness quality, and product quality requirements

Inactive Publication Date: 2015-10-07
SUZHOU BAOMA NUMERICAL CONTROL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, WEDM is widely used in the processing of aluminum alloy workpieces. However, due to the influence of conductive block discharge, improper selection of discharge parameters, and improper use of cutting fluid, the traditional WEDM process results in thicker workpieces. The phenomenon of wire breakage is easy to occur when the workpiece is processed, and the surface of the workpiece is prone to light and dark spots and stripes, which seriously affects the surface roughness and processing efficiency of the workpiece

Method used

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  • Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method

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Experimental program
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Effect test

Embodiment 1

[0019] The specific processing method is as follows:

[0020] a) Improve the power supply mode of the conductive block, and use the aluminum cutting component to improve the power supply mode of the conductive block. The aluminum cutting component uses the DC motor armature power supply mode, and uses the carbon brush to supply high-frequency power to the wire drum of the wire feeding system, thereby avoiding The phenomenon of wire clamping and broken wire in the conductive block is eliminated.

[0021] b) Reasonably adjust the electrical parameters of wire cutting processing. The voltage selected for wire cutting processing is normal pressure, and the discharge waveform is rectangular wave pulse. The electrical parameters are adjusted as follows: pulse width 18, pulse gap 16, power tube number 5, gap voltage 4, Feed rate 50.

[0022] c) Replace the new cutting fluid. The selected new cutting fluid contains the following components and weight percentages: 10% compound lubrica...

Embodiment 2

[0024] The specific processing method is as follows:

[0025] a) Improve the power supply mode of the conductive block, and use the aluminum cutting component to improve the power supply mode of the conductive block. The aluminum cutting component uses the DC motor armature power supply mode, and uses the carbon brush to supply high-frequency power to the wire drum of the wire feeding system, thereby avoiding The phenomenon of wire clamping and broken wire in the conductive block is eliminated.

[0026] b) Reasonably adjust the electrical parameters of wire cutting processing. The voltage selected for wire cutting processing is normal pressure, and the discharge waveform is rectangular wave pulse. The electrical parameters are adjusted as follows: pulse width 20, pulse gap 18, power tube number 6, gap voltage 4, Feed rate 55.

[0027] c) Replace the new cutting fluid. The selected new cutting fluid contains the following components and weight percentages: 10% compound lubrica...

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Abstract

The invention provides a wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method comprising the following steps: a, improving conducting block current input mode; b, reasonably adjusting linear cutting processing electric parameters; c, replacing novel cutting fluid. The technology improved method is simple and reasonable, can effectively solve fracture wire problem, obtains better processing surface roughness quality, improves processing efficiency, and ensures product quality requirements.

Description

technical field [0001] The invention relates to a method for improving a processing technology, in particular to a method for improving a method for processing aluminum alloy by electric discharge wire cutting, and belongs to the technical field of electric discharge wire cutting processing. Background technique [0002] WEDM is a non-contact, special processing method without significant mechanical cutting force. It uses the instantaneous local high temperature generated during the pulse spark discharge between the electrode wire and the workpiece to ionize the medium between the discharge points on the surface of the workpiece. Wear, the metal is melted, gasified and cut into shape. Wire EDM has many unique advantages, and can process various difficult-to-machine and unmachinable materials as well as complex-shaped workpieces. [0003] With the rapid development of metal processing industry, wire electric discharge cutting technology has also been greatly developed. Alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H7/02
CPCB23H7/02B23H7/04B23H7/34
Inventor 邵建军
Owner SUZHOU BAOMA NUMERICAL CONTROL EQUIP
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