Discusses precision parts
line when the relationship between surface roughness and machining efficiency of edm wire cutting machine is known as a kind of precision machinery processing equipment, for different precision parts, its role cannot be ignored.
Because the cutting contour less allowance, so can reduce consumption, save costs, has been widely used in copper, aluminum, silver and other materials processing.
As a result of these metals has special physical and chemical properties, process exists many problems, such as: electric erosion content size, easy adhesion on the wire electrode;
Machining gap easily blocked, etc.
Processing, the longer the more thing adhesion with electric erosion on the wire electrode, thus influence on the performance of the wire electrode discharge, affect surface roughness of precision machinery parts processing, processing stability, then the quality of the processing.
Brass alloy due to the excellent physical properties, mechanical properties and machinability, in machinery, light industry, watches and clocks, and other industries widely used, but because of its special physical and chemical properties, there are many problems in the processing, wire cutting molybdenum wire when processing brass inevitable adhesion of copper scrap, the more the longer adhesion, serious impact on the accuracy of precision mechanical product.
How to reduce the adhesion is has been subject to research on precision machinery processing industry.
Wire-cutting precision machinery parts processing, machining efficiency and surface roughness are contradictory, if we can to solve this contradiction, will be conducive to expanding wire-cutting processing scope, also is the need to choose the electrical parameters.
In general, the higher the pulsed voltage, the higher machining efficiency, but also the surface roughness value;
Pulse current work, the greater the precision machining efficiency is higher, the surface roughness value is, the greater the pulse width is wider, the higher machining efficiency, but also the surface roughness value;
Reasonable electricity parameter selection according to the requirement for parts, mainly according to the thickness of the workpiece, to choose materials and surface roughness requirements, though the selection of electric gauge parameters is very important, but the impact factors of precision machinery parts processing efficiency and surface roughness are closely related with other parts in the system as a whole.
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