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| 1 | 生物骨材料切除理论研究综述显示文摘生物骨材料是一种结构复杂的各向异性材料,其切削加工是外科手术中一项基础而关键的操作。骨材料的加工质量直接影响手术治疗效果、人工假体植入稳定性、以及术后康复时间。人体不同部位的骨材料的力学性能存在一定差异,手术器械种类繁多且操作不同,使骨材料的加工方式呈现多样化。在外科手术中,各类器械需要对骨材料进行高精度、高效率、低损伤的加工,其加工机理研究对提高手术器械的使用性能,手术治疗效果和康复效果具有重大意义。因此,从生物骨材料的基础力学与断裂力学等特性出发,阐述了包括钻、铣、磨、锯等机械加工方式以及超声、激光、和水射流等特种能场加工方式对骨材料的切除机理,分析了不同机械加工方式下的切削力与切削温度理论模型,特种能场的切除机理与加工特性,指出骨材料加工的发展现状以及目前存在的一些问题,提出了骨材料加工的主要研究重点。 | 王成勇 陈志桦 陈华伟 宋清华 任莹晖 隋建波 舒利明 陈滨 郑李娟 | 2021 | 机械工程学报2021，57，11： | 8 |
| 2 | 临床外科手术中骨切削技术的研究现状及进展显示文摘对骨切削研究中的骨切削数值仿真本构模型、骨切削手术工艺及机理等方面进行了综述,着重介绍了切削参数对骨切削的影响、骨切削刀具设计等,并对医学领域新兴的超声骨切削技术进行了介绍和分析.最后得出应从以下方面完善骨切削研究:(1)骨切削数值仿真的本构模型有待开发;(2)构建系统的骨材料切削理论以解释骨材料切屑形态的切削机理;(3)骨材料切削刀具的开发需要进一步深化;(4)超声骨切削由于安全性高、损伤小、愈合快的特点将成为未来临床骨切割操作的发展方向和趋势. | 王震 宋晓菲 陈彤云 | 2019 | 工程科学学报2019，41，6： | 3 |
| 3 | Drilling study on lightweight structural Mg/SiC composite for defence applications显示文摘Heat energy generated during machining has been found to have a greater influence on determining the machinability of the materials.In this work,magnesium-based silicon carbide composite,which has been identified as a suitable lightweight application material,is prepared with the weight ratio of 90:10 by a stir casting process.Conventionally available HSS drill tools with different diameters of 4,6 and 8 mm are used to perform the drilling operations with governing parameters of spindle speed,feed rate and constant depth of cut.Thermal image camera of the FLIR E60 series is used to measure the temperature variation in the cutting zone at different operating conditions.The influences of machining temperature on chip morphology,tool wear and surface profile of the machined samples are investigated.Spindle speed has been found to have a significant effect on machining temperature.When spindle speed increases,the diameter of drill tool increases the tool wear and surface profile,respectively.Both abrasion and adhesive type of wears are observed in the drill tool.Further,change from abrasion to adhesive wear is noticed with the increase of the diameter of the drill tool.Surface plots are drawn with respect to the interaction of governing parameters along with the working temperatures obtained under different machining conditions. | K. Balamurugan M. Uthayakumar S. Thirumalai Kumaran G.S. Samy U.T.S. Pillai | 2019 | Defence Technology(防务技术)2019，15，4： | 0 |
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