钛合金微小零件制造技术进展

Research Status and Development Trend of Manufacturing Technology of Titanium Alloys Micro-parts

钛合金因其卓越的生物相容性、耐热、耐腐蚀和高比强度等性能,在金属微小零件领域持续展现出广阔的应用前景。由于钛合金具有弹性模量低、导热系数小和化学亲和性大等典型难加工性,在一定程度上阻碍了其应用。通过综合近十年来的国内外文献资料,简要介绍了钛合金微小零件微细铣削加工、激光/微细电火花加工、微尺度3D打印、微细电解加工和多能场复合微加工的研究进展,分析了钛合金微细制造技术研究中亟待解决的问题,并阐述了钛合金微小零件制造技术的未来发展趋势。

The titanium alloys have a significant prospect in the application field of metallic micro-parts, due to their excellent bio-compatibility, heat-resistance, corrosion-resistance, high specific strength and so on.As a typical difficult-to-cut materials, the titanium alloys have small elastic modulus, low thermal conductivity and great chemical affinity, which are classified to a great extent hindered of their wide application.The research progress in manufacturing technology of titanium alloys micro-parts by reviewing the literature at home and abroad in recent ten years are briefly introduced, including micro milling, laser and micro electrical discharge machining, microscale 3 D printing, micro electrochemical machining and multi-energy field compound micro processing.The problems urgently to be solved in the research of micro manufacturing technology of titanium alloys are analyzed, and the development trends of manufacturing technology of titanium alloys micro-parts in the future are prospected.