聚醚醚酮材料3D打印试件的铣削参数试验研究
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摘要
为满足人工骨的生产制造中高表面质量的要求,以熔融沉积(FDM)型3D打印方式制造的聚醚醚酮(PEEK)材料3D打印试件为对象,使用自主研发的熔融增材与铣削减材复合加工机床对3D打印试件曲面进行铣削试验,对铣削过程中的因素参数进行优化试验研究。利用单因素试验法和正交试验法,以被铣削试件的表面粗糙度Ra为响应指标,选取切削深度a_p、主轴转速n和每齿进给量f_z三个研究因素展开试验。试验结果表明:对表面粗糙度影响由大到小的因素依次为n、a_p、f_z;当n=4700r/min,a_p=0.40mm,f_z=0.085mm/z时,表面粗糙度最小。
In order to meet the requirements for the production of high surface quality in the production of artificial bones, 3 D printing samples of polyether ether ketone(PEEK) materials manufactured by fused deposition(FDM) 3 D printing method are used as objects, self-manufactured melting additives and milling reductions composite processing machine is used, the milling test is processed on the surfaces of 3 D printed specimens, and optimizes the experimental research on the factor parameters in the milling process. Using the single factor test method and the orthogonal test method, with the surface roughness Ra of the milled test piece as the response index, three research factors, cutting depth a_p, spindle speed n, and feed per tooth f_z, are selected to conduct tests. The experimental results show that the impact of surface roughness in descending order is n, a_p, f_z. When n=4700 r/min, a_p=0.40 mm and f_z=0.085 mm/z, the surface roughness reaches the minimum value.
In order to meet the requirements for the production of high surface quality in the production of artificial bones, 3 D printing samples of polyether ether ketone(PEEK) materials manufactured by fused deposition(FDM) 3 D printing method are used as objects, self-manufactured melting additives and milling reductions composite processing machine is used, the milling test is processed on the surfaces of 3 D printed specimens, and optimizes the experimental research on the factor parameters in the milling process. Using the single factor test method and the orthogonal test method, with the surface roughness Ra of the milled test piece as the response index, three research factors, cutting depth a_p, spindle speed n, and feed per tooth f_z, are selected to conduct tests. The experimental results show that the impact of surface roughness in descending order is n, a_p, f_z. When n=4700 r/min, a_p=0.40 mm and f_z=0.085 mm/z, the surface roughness reaches the minimum value.
引文
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[2] Inzana J A, Olvera D, Fuller S M, et al. 3D printing of composite calcium phosphate and collagen scaffolds for bone regeneration[J]. Biomaterials, 2014, 35(13): 4026-4034.
[3] 高丽花. 温度波动下骨骼创伤修复中的聚醚醚酮(PEEK)仿生人工骨3D打印技术[J].科技通报,2017,33(2):125-128,172.
[4] 赵帝. 仿生人工骨3D打印流场仿真分析及试件力学性能研究[D].长春:吉林大学,2015.
[5] 张钰. 聚醚醚酮仿生人工骨3D打印热力学仿真及试验研究[D].长春:吉林大学,2014.
[6] 郭宇鹏,李玉新.FDM技术原理特点及成型质量分析[J].科技视界,2016(26):14-15.
[7] 刘肖肖,吕福顺,刘原勇,等.一种增材与减材复合制造机研究[J].制造技术与机床,2017(6):49-52.
[8] 阴晓铭,于化东,许金凯,等.高速精密微铣削Ti-6Al-4V表面质量影响因素试验研究[J].组合机床与自动化加工技术,2015(10):56-60.
[9] 孙永厚,张宇轩,黄美发,等.基于CFD仿真和正交试验的喷油嘴针阀公差分析[J].组合机床与自动化加工技术,2015(12):53-55,59.
[10] 吕福顺,程祥,刘肖肖,等. PEEK的3D打印参数优化及铣削试验研究[J].组合机床与自动化加工技术,2018(3):38-40,44.