Introduce the use steps of double-sided grinding machine


The grinding process is widely used in industry because of its high quality and high precision appearance. Achieting outstanding craftsmanship is more like an artistic skill than a technological achievement. Thus, appropriate monitoring and control systems should be used to increase productivity in the production of expensive machine tools.

 

A proper definition of the grinding remediation moment is critical to the overall grinding process optimization and control. If the grinding disc is separated too late, the proper metal removal rate is not achieved, or even worse, the appearance of the workpiece may be damaged. On the other hand, if the dressing is used too frequently, dressing diamond wear and abrasive disc wear will create significant costs. In the case of grinding classical dressings (I. e., discontinuities), time is spent using unnecessary dressings, which in turn increases production costs.

In addition to cutting the surface of the workpiece, it is also possible to produce a conflict between the grinding disc and the workpiece during the mutual oscillation. Studies have shown that there is a strong correlation between the appearance of the transition and the emitted sound and oscillation. Based on sound and oscillation, the skilful operation is able to detect whether the grinding wheel is sharp or dull.

The skill of the operator depends on the human's ability to extract feature frequencies. During grinding, the sound frequency scales from 5000 to 10000 Hz and reflects the cut profile. According to the experience, the new grinding disc has a higher frequency in the whole life cycle. The particles on the grinding disc, the metal chips filling in the holes, and the distance from the metal sheet make the grinding disc spacing larger, resulting in larger wafers and higher surface roughness.

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