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对金属加工而言,关键问题之一是如何提高刀具的使用寿命。“涂料刀具”是答案之一.涂镀时根据不同的工艺,刀具温度与室温差达2000℉。温度越高,刀具变形的可能性就越大.但实验证明,涂料的粘接牢度与工艺过程的温度成比例。象渗碳和渗氮的某些涂料实际上完全不是涂镀,这些工艺是使材料表面形成一个硬性外壳,增强了表面的耐磨性。大多数涂料工艺都已得到广泛的应用,并显著地延长了刀具的使用寿命。本文扼要论述“化学汽相淀积”工艺(CVD),介绍碳化钛、氮化钛和氧化铝的性能数据。切削中出现的刀具磨损受着若干因素的影响,如
For metalworking, one of the key questions is how to improve the service life of the tool. One of the answers is the “paint cutter.” Depending on the process, the temperature difference between the tool and room temperature can reach 2000 ° F. The higher the temperature, the more likely the tool will deform, but experiments have shown that the adhesion of paint is in proportion to the temperature of the process. Certain coatings, such as carburizing and nitriding, are actually not coated at all. These processes make the surface of the material a hard shell that enhances the wear resistance of the surface. Most coating processes have been widely used, and significantly extend the tool life. This article gives a brief overview of Chemical Vapor Deposition (CVD) processes and describes the performance data for titanium carbide, titanium nitride and alumina. Cutting tool wear appears to be affected by several factors, such as