Wire cutting is a commonly used metal cutting process that cuts a workpiece through molybdenum wire moving at high speed. During the cutting process, a high-temperature area is formed between the molybdenum wire and the workpiece, which makes the workpiece partially melt and form a cutting gap, and then the workpiece is cut into the desired shape through the movement of the molybdenum wire. Medium wire cutting has the advantages of fast cutting speed, high precision and wide range of application, so it has been widely used in industrial production.
Finish refers to the smoothness of the cutting surface and is also one of the important indicators to measure the quality of the cut. The quality of the finish directly affects the quality and service life of the workpiece. In the process of wire cutting, the improvement of the finish is mainly achieved through the following aspects:
1.Select the appropriate cutting parameters:
Cutting parameters include molybdenum wire tension, cutting speed, pulse frequency, etc. Reasonable selection of cutting parameters can make the cutting process more stable, reduce the unevenness of the cutting gap, and thus improve the finish.
2.Optimize the cutting process:
The cutting process includes cutting speed, cutting direction, cutting path, etc. By optimizing the cutting process, vibration and shock during the cutting process can be reduced, the unevenness of the cutting gap can be reduced, and the finish can be improved.
3.Choosing the right molybdenum wire:
The diameter of the molybdenum wire has a great influence on the finish. In general, a lower diameter filament can achieve a higher finish. At the same time, choosing a molybdenum wire with a smooth surface can also improve the finish.
4.Enhance the cooling and lubrication of the cutting process
During the cutting process, proper cooling and lubrication can reduce the heat accumulation during the cutting process, reduce the unevenness of the cutting gap, and improve the finish.
5.Regular maintenance and maintenance of equipment:
The maintenance and upkeep of the equipment is also very important to maintain the cutting quality and finish. Measures such as regularly cleaning the equipment, replacing worn parts, and adjusting the accuracy of the equipment can ensure the normal operation of the equipment and improve the cutting quality and finish. Zhikai's wire-EDM machine can achieve high-finish processing. Motor core molds usually require smooth surfaces, high thorns and roughness. Zhikai wire cutting machine adopts fine imitation slow wire cutting machine tool, non-electrolytic high-frequency pulse power EDM technology, which can produce micro discharge pulses during the cutting process, thereby avoiding burrs and rough surfaces caused by traditional mechanical cutting. This not only improves the working effect of the mold, but also eases the subsequent surface treatment process.
In short, the improvement of the wire cutting finish needs to comprehensively consider the cutting parameters, cutting process, molybdenum wire, cooling lubrication and equipment maintenance and other factors. Only when these aspects are reasonably selected and optimized can we achieve a higher finish, improve the cutting quality and meet the requirements of the workpiece.
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