钛及钛合金以其良好的生物相容性，在临床上用于人体硬组织植入和修复。3D打印技术是近年快速发展的特种加工技术，突破了传统加工技术的局限，可实现近净成形，并能够制作出复杂结构，且材料利用率高，设计制作周期短。3D打印技术在个性化外形和内部细微结构加工及快速精确成形方面的巨大优势，使其在医用植入物加工领域备受关注。为此，概述了3D打印成形钛合金人体植入物的优势、应用状况以及3D打印钛合金人体植入物的生物力学适配性能的研究进展，总结了国内3D打印技术在钛合金人体植入物领域的研究现状。
Titanium and titanium alloys are used in the clinical treatment of human hard tissue implant and repair materials due to their biocompatibility .3 D printing technology is a special processing technology in recent years , and has broken the limits of the traditional processing technology .It can achieve near net shape forming , and can produce a complex structure.The material utilization rate is high , and the design-produce cycle is short.3D printing technology has a huge advantage in the fields of personalized appearance , internal fine structure processing and rapid precision forming , so it gets lots of attention in the field of medical implant processing .In this paper , the advantages and the application of 3 D printing titanium alloy human implants were summarized .The research progress of the biomechanical properties of 3 D titanium and titanium alloy human implants were introduced , and the domestic research status of 3 D printing technology in titanium alloy human implants was summarized .
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