| 不同刀具车削GH4169时的切削性能对比 |
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| 引用本文： | 王奔,常康,王碧玲,张亚飞,王明海. 不同刀具车削GH4169时的切削性能对比[J]. 组合机床与自动化加工技术, 2019, 0(6): 119-122 |
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| 作者姓名： | 王奔 常康 王碧玲 张亚飞 王明海 |
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| 作者单位： | 沈阳航空航天大学航空制造工艺数字化国防重点学科实验室;中国航空工业空气动力研究院 |
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| 基金项目： | 国家自然基金面上项目(51875367),国家自然基金青年科学基金(51505302);辽宁省自然基金(20170540697);航空科学基金(2015ZE54027);国防重点学科实验室开放基金(SHSYS2017005) |
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| 摘 要： | 为了选择合适的材料刀具,提高GH4169加工时的刀具寿命。分别使用PCD(聚晶金刚石)、CBN(立方氮化硼)、涂层硬质合金刀具车削GH4169,并从刀具磨损机理、切屑形态、表面加工质量三个方面进行了刀具切削性能研究。试验结果表明:CBN刀具磨损最严重,其磨损形式主要表现为前、后刀面的沟槽磨损,主切削刃的脆性断裂。PCD刀具磨损形式主要表现为微崩刃,涂层硬质合金刀具磨损形式主要表现为涂层脱落。三种刀具加工的切屑形态均为螺旋形,切屑外径大小为:PCD<涂层硬质合金
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| 关 键 词： | PCD 涂层硬质合金 CBN 车削 高温合金 切削性能 |
Comparative on the Process-Ability of Different Tools During Turning of the GH4169 |
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| WANG Ben,CHANG Kang,WANG Bi-ling,ZHANG Ya-fei,WANG Ming-hai. Comparative on the Process-Ability of Different Tools During Turning of the GH4169[J]. Modular Machine Tool & Automatic Manufacturing Technique, 2019, 0(6): 119-122 |
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| Authors: | WANG Ben CHANG Kang WANG Bi-ling ZHANG Ya-fei WANG Ming-hai |
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| Affiliation: | (Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process,Shenyang Aerospace University,Shenyang 110136,China;AVIC Aerodynaiviics Research Institute,Shenyang 110034,China) |
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| Abstract: | In order to select the suitable tool material and improve the tool life during cutting of the GH4169. GH4169 was machined using PCD (polycrystalline diamond)、CBN (cubic boron nitride) and coated cemented carbide tools, then the cutting performance of the tool was studied in three aspects include the tool wear mechanism、chip morphology、 machining quality. The results show that the wear of CBN is the most serious, its wear patterns mainly show the grooves wear on the rake and flank, and the brittle fracture of the main cutting edge. The wear pattern of PCD is mainly expressed as a micro chip. The wear pattern of coated cemented carbide tools is mainly manifested as coating shedding. The chip shape of all three cutters is helical, and the order of chip diameter is PCD
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| Keywords: | PCD coated cemented carbide CBN turning superalloy cutting performance |
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