The study of the micromachining process of titanium alloys has intensified due to a greater need to develop micro components for the medical sciences. However, the investigation of the behavior of process variables is still incipient, complex and challenging. Heat and temperature distributions are important aspects for any machining process, so the main objective of this work is to investigate temperature distributions during the micro-milling of the Ti-6Al-4 V alloy combined experimentally with numerical simulations. To carry out the experiments, AlCrN coated carbide end mill tools were used for machining micro slots. During machining, the workpiece temperature is measured using T-type thermocouples welded to the workpiece surface aligned with the tool path. The temperature distribution was also obtained by numerical simulation using the commercial software Third Wave AdvantEdge (version 7.4015). The experimental results showed that the temperature on the surface of the specimen increases from the up-milling side to the down-milling side and that it tends to increase with tool wear. However, the simulated data showed that the temperature is higher in the center of the slot, which is the point with the highest undeformed chip thickness.

由于医学科学开发微型部件的需求更大，对钛合金微加工工艺的研究不断加强。然而，对过程变量行为的研究仍然处于起步阶段、复杂且具有挑战性。热量和温度分布是任何加工过程的重要方面，因此这项工作的主要目的是通过实验与数值模拟相结合的方式研究 Ti-6Al-4 V 合金微铣削过程中的温度分布。为了进行实验，使用 AlCrN 涂层硬质合金立铣刀来加工微槽。在加工过程中，使用焊接到与刀具路径对齐的工件表面的 T 型热电偶来测量工件温度。温度分布也是使用商业软件Third Wave AdvantEdge（版本7.4015）进行数值模拟获得的。实验结果表明，试样表面温度从顺铣侧向顺铣侧逐渐升高，且随刀具磨损而呈升高趋势。然而，模拟数据表明，槽中心的温度较高，这是未变形切屑厚度最高的点。