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Working solution for high-speed wire electrical discharge machining

A wire electric discharge and cutting technology, which is applied in the field of electric discharge machining, can solve the problems of many harmful gases, lack of machined surface, high content of aromatic hydrocarbons and easy volatilization, etc., and achieves high surface finish, shortened processing time, and good process performance. Effect

Inactive Publication Date: 2012-11-21
KUNSHAN RUIJIE PRECISION MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of kerosene are obvious, mainly because of the low flash point (about 46°C), which may cause fire due to accidental negligence during use, and its high aromatic content is volatile, and many harmful gases are produced by processing and decomposition.
Moreover, when the processing area is large, it is not easy to perform stable finishing in kerosene working fluid, and a good processing surface cannot be obtained.
In addition, the processing efficiency and electrode wear in kerosene are not very satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] White oil: 10wt%, polyoxyethylene ether: 5wt%, tetraacetylethylenediamine: 2wt%, sodium molybdate: 0.5wt%, nano silicon carbide powder (average diameter 10nm): 0.05wt%, and the remainder No. 68 mechanical oil.

[0022] First, add No. 68 mechanical oil, white oil, polyoxyethylene ether and tetraacetylethylenediamine into the reaction kettle and heat it to 100°C, add sodium molybdate and nano-silicon carbide powder and mix thoroughly, and keep warm for 15 minutes to obtain the above-mentioned fast wire EDM working fluid.

Embodiment 2

[0024] White oil: 11wt%, polyoxyethylene ether: 6wt%, tetraacetylethylenediamine: 3wt%, sodium molybdate: 0.5wt%, nano silicon carbide powder (average diameter 10nm): 0.05wt%, and the balance No. 68 mechanical oil.

[0025] First, add No. 68 mechanical oil, white oil, polyoxyethylene ether and tetraacetylethylenediamine into the reaction kettle and heat it to 100°C, add sodium molybdate and nano-silicon carbide powder and mix thoroughly, and keep warm for 15 minutes to obtain the above-mentioned fast wire EDM working fluid.

Embodiment 3

[0027] White oil: 12wt%, polyoxyethylene ether: 7wt%, tetraacetylethylenediamine: 4wt%, sodium molybdate: 0.5wt%, nano silicon carbide powder (average diameter 10nm): 0.05wt%, and the balance No. 68 mechanical oil.

[0028] First, add No. 68 mechanical oil, white oil, polyoxyethylene ether and tetraacetylethylenediamine into the reaction kettle and heat it to 100°C, add sodium molybdate and nano-silicon carbide powder and mix thoroughly, and keep warm for 15 minutes to obtain the above-mentioned fast wire EDM working fluid.

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Abstract

A working solution for high-speed wire electrical discharge machining comprises components of 10-15wt.% of white oil, 5-12wt.% of polyoxyethylene ether, 2-5wt.% of tetra acetyl ethylene diamine, 0.5-1.0wt.% of sodium molybdate, 0.05wt.% of nano silicon carbide powders and the balance 68# machine oil. The working solution is high in flashing point, good in machining process performance and long in service life and has no harmful influence on human bodies and machines.

Description

technical field [0001] The invention relates to the field of electrical discharge machining, in particular to a fast-moving wire electrical discharge machining working fluid. Background technique [0002] Discharge machining is a processing method that uses the electric corrosion phenomenon during pulse discharge between the tool electrode and the workpiece electrode to process the material in a certain medium to achieve a certain shape, size and surface roughness. When a single pulse discharge is performed in a small gap of a liquid medium, the electrocorrosion process of the material can be roughly divided into three continuous processes: dielectric breakdown, channel formation, energy conversion and transfer, and electrocorrosion product ejection. When molding a conductive workpiece, the space between the two electrodes must be filled with a liquid medium, which is the aforementioned EDM working fluid. [0003] EDM working fluid must have high dielectric strength to faci...

Claims

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Application Information

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IPC IPC(8): B23H7/34
Inventor 郑霞
Owner KUNSHAN RUIJIE PRECISION MOLD
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