The workpiece was grinding normally for most of the time, but suddenly there was a problem of grinding burns on the workpiece when the grinding was to be completed. For this issue, we will analyse the following cases.
Analysis Of The Causes Of Grinding Burns
Firstly, we need to clarify the details of the problem. The user mentioned that during the majority of the grinding process, the workpiece grinding was normal, but in the final stage of grinding, there was a grinding burn on the surface of the workpiece. This indicates that the initial grinding condition and processing parameters are suitable, and problems are likely to occur in the later stage of the grinding process.
Next, we will analyze the possible causes of the grinding burns. Considering the abnormality that occurred when the grinding process was about to be completed, we can speculate that the state of the grinding wheel may have undergone significant changes. Specifically, after long-term grinding, the grinding wheel may experience severe wear or blockage, resulting in a decrease in sharpness, an increase in grinding force, and excessive heat accumulation. In addition, if the heat dissipation and self sharpening of the grinding wheel are insufficient, it will also exacerbate heat accumulation, thereby causing surface burns on the workpiece.
Solutions To Grinding Burn
Firstly, regularly dress the grinding wheel. During the grinding process, dress the grinding wheel timely based on the wear of the grinding wheel to ensure its sharpness and reduce the grinding force and heat. Especially after long-term continuous grinding, inspect and dress the grinding wheel carefully.
Secondly, choose grinding wheels with better heat dissipation and self sharpening. When choosing the diamond or CBN grinding wheel, pay attention to the heat dissipation and self-sharpening performance, and parameters such as grinding wheel material, grain size, and hardness, improving grinding efficiency and workpiece quality. Both vitrified bond diamond grinding wheel and CBN grinding wheel has excellent self-sharpening performance, and abundant pores.
In summary, for the workpiece grinding burns when grinding is need to be completed, we need to make comprehensively analysis based on the condition of grinding wheel, the selection of grinding wheel, and grinding process. We can effectively prevent and solve the problem, ensuring the workpiece quality stable by regularly dressing the grinding wheel, selecting high quality grinding wheel, and optimizing the grinding process management.
