Inconel 718高温合金增减材复合制造各向异性及切削温度影响分析  

Influence of Anisotropy and Milling Temperature on Hybrid Additive and Subtractive Manufactured Inconel 718 Superalloy

作　　者：刘欢 刘彬 李亮亮[3] 刘静[2] 李鹏飞[2] Liu Huan;Liu Bin;Li Liangliang;Liu Jing;Li Pengfei(Institute of Manufacturing,Guangzhou Panyu Polytechnic,Guangzhou 511483,China;不详;School of Mechanical Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]广州番禺职业技术学院智能制造学院,广州市511483 [2]江苏大学机械工程学院 [3]沈阳飞机工业(集团)有限公司工艺研究所,江苏省镇江市212013

出　　处：《工具技术》2023年第1期54-59,共6页Tool Engineering

基　　金：国家重点研发计划(2019YFB2005401);江苏省自然科学基金——青年基金(BK20210758);中国博士后面上项目一等资助(2022M710060);广东省普通高校青年创新人才项目(自然科学)(2018KQNCX409);江苏省先进制造重点实验室开放基金(HGAMTL-2103)。

摘　　要：结合定向能量沉积增材制造和铣削加工的增减材复合制造不仅可以实现高效加工,而且能够及时消除缺陷,使加工材料达到较高的加工精度,但是制造过程中铣削温度和增减材切换产生的界面对零件性能影响还不明晰。以Inconel 718高温合金为原料制备薄壁结构,对比室温及高温铣削影响,分析其不同朝向的性能。结果表明,竖直方向的综合力学性能低于其他方向,在倾斜45°方向时,高温铣削的性能优于室温铣削,层间增减材复合制造试样获得最大拉伸强度。Combined with directed energy deposition(DED)additive manufacturing and subtractive milling(SM),hybrid additive and subtractive manufacturing(HASM)can not only achieve high efficiency machining,but also eliminate defects in time and reach high accuracy.However,the effects of milling temperature and interface generated by the switching different systems on the performance is not clear.In this paper,Inconel 718 superalloy is used as raw material to fabricate thin walled structure.The effects of room-temperature milling,high-temperature milling and orientations on mechanical properties are compared.The results show that the comprehensive mechanical properties in the vertical direction are lower than those in other directions.The performance of high-temperature milling in the inclined 45°direction is better than that at room temperature.The maximum tensile strength with interlaminar HASM is also obtained in the inclined 45°direction.

关 键 词：增减材复合制造 拉伸强度 Inconel 718 定向能量沉积 高温铣削 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TH16[金属学及工艺—金属材料]