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针对钛合金Ti6Al4V加工过程中产生的切削热导致刀具的快速磨损这一工艺难题,进行了不同冷却条件下的铣削加工实验。借助扫描电镜分析(SEM)、能谱分析(EDS)等分析手段,研究了刀具的磨损形态及磨损机理。研究表明,粘结磨损是加工钛合金过程中刀具的主要磨损形式,切削液的使用并不一定提高刀具寿命,而机床的稳定性能对刀具磨损有较大影响。
Aimed at the problem of rapid wear of cutting tool caused by the cutting heat generated during the processing of titanium alloy Ti6Al4V, the milling experiments under different cooling conditions were carried out. By means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and other analytical tools, the wear morphology and wear mechanism of the tool were studied. Research shows that the bond wear is the main form of tool wear during the machining of titanium alloy. The use of cutting fluid does not necessarily increase the tool life, and the stability of the machine tool has a greater impact on tool wear.