The grinding process of Titanium (Ti) alloys is extremely difficult as the cutting temperature is much higher than other machining processes due to the low thermal conductivity, high chemical reactivity, and rapid work hardening during machining of Ti alloys. This research investigates the effect of technology parameters on the surface roughness in the surface grinding of Ti–6Al–4V (Ti64) alloy with resinoid cBN grinding wheel. The experimental results show that the surface roughness is significantly affected by the feed rate, depth of cut (DOC) and cooling condition. Increasing feed rate or DOC all provides the higher surface roughness. The surface roughness obtained in the wet grinding is higher than those of the dry cutting. The scanning electron microscopy (SEM) images of Ti64 surfaces show that the machining surface with fewer defects can be produced with wet grinding process.

中文翻译：

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树脂型cBN砂轮对TI-6AL-4V合金表面磨削工艺的研究

钛 (Ti) 合金的磨削过程极其困难，因为钛合金加工过程中的低导热性、高化学反应性和快速加工硬化，其切削温度远高于其他加工工艺。本研究探讨了工艺参数对使用树脂型 cBN 砂轮进行表面磨削的 Ti-6Al-4V (Ti64) 合金表面粗糙度的影响。实验结果表明，表面粗糙度受进给量、切削深度（DOC）和冷却条件的影响很大。增加进给率或 DOC 都提供了更高的表面粗糙度。湿式磨削得到的表面粗糙度高于干式切削。