What is a common indicator of tool wear in cutting operations?

In cutting operations, a common indicator of tool wear is an increase in cutting temperature and poor surface finish. As the cutting tool begins to wear, it loses its sharpness, which results in less efficient cutting. This inefficiency generates more heat during the machining process, leading to a higher cutting temperature. Additionally, as tool wear progresses, the surface finish of the produced workpiece often deteriorates, resulting in imperfections or roughness that are visible to the naked eye or measurable through various inspection methods.

Monitoring these changes is crucial for machinists, as they can significantly affect the quality of the final product and the overall efficiency of the machining process. Recognizing these signs allows operators to take timely action, such as replacing or sharpening the tool, to maintain production quality and reduce the risk of additional tool damage or workpiece defects.