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工程设计学报
工程设计学报  2019, Vol. 26 Issue (6): 700-705    DOI: 10.3785/j.issn.1006-754X.2019.00.012
优化设计     
硬质合金车刀改进前后切削能对比研究
蒋宏婉
贵州理工学院 机械工程学院， 贵州贵阳 550003
Contrastive study on cutting energy of cemented carbide turning tools before and after improvement
JIANG Hong-wan
College of Mechanical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
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摘要： 在金属切削过程中，能量的产生与耗散时刻存在，这会直接影响加工材料的形变与加工质量。以硬质合金车刀为研究对象，借助结合理论计算、切削实验与仿真分析的研究手段，对改进的硬质合金微槽车刀和原车刀在切削高强合金钢过程中切削能的产生、传递与耗散展开研究，从能量角度揭示硬质合金微槽车刀的降温机理。研究发现，硬质合金微槽车刀较原车刀降低了切削过程的能耗，其单位总输入能、单位摩擦能、单位剪切能的降幅分别为5.1%，10.4%和3.4%；从能量耗散角度分析发现，硬质合金微槽车刀切削区平均温度低于原车刀，且理论计算和实验分析结果与仿真结果一致。研究结果为硬质合金微槽车刀的深入研究提供了理论支持，为其它类似金属加工过程中切削能量的对比研究提供了有效的参考。
关键词： 硬质合金;  微槽车刀;  切削能;  切削温度    
Abstract: In the metal cutting process, the generation and dissipation of energy always exists, which directly affects the deformation of processed material and processing quality. The cemented carbide turning tool was researched through the combination of theoretical calculation, cutting test and simulation. The generation, transmission and dissipation of cutting energy of the improved cemented carbide micro-groove turning tool and the original turning tool in the process of cutting high-strength alloy steel were mainly studied, and the cooling mechanism of the micro-groove turning tool was revealed from the view of energy. It was found that the energy consumption of the cemented carbide micro-groove turning tool was lower than that of the original turning tool. The reduction of the unit total input energy, unit friction energy and unit shear energy was 5.1%, 10.4% and 3.4%, respectively. From the view of energy dissipation, the average temperature of the cutting area of the cemented carbide micro-groove turning tool was lower than that of the original turning tool, and the theoretical and experimental results were in good agreement with the simulation results. The conclusion provides theoretical support for the later research of the cemented carbide micro-groove turning tool, and also provides an effective reference for the comparative study of cutting energy in other similar metal cutting processes.
Key words: cemented carbide    micro-groove turning tool    cutting energy    cutting temperature
收稿日期: 2019-07-15 出版日期: 2019-12-28
CLC:  TG 712  
基金资助: 贵州省教育厅青年科技人才成长项目(黔教合KY字[2018]248)；国家自然科学基金资助项目(51765009)；贵州理工学院高层次人才科研启动基金资助项目(2018072)
作者简介: 蒋宏婉（1988—），女，贵州凯里人，副教授，博士，从事刀具创新设计和切削机理研究，E-mail:jhw.969@163.com, https://orcid.org/0000-0003-0339-1513
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引用本文:

蒋宏婉. 硬质合金车刀改进前后切削能对比研究[J]. 工程设计学报, 2019, 26(6): 700-705.

JIANG Hong-wan. Contrastive study on cutting energy of cemented carbide turning tools before and after improvement. Chinese Journal of Engineering Design, 2019, 26(6): 700-705.

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https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2019.00.012    或    https://www.zjujournals.com/gcsjxb/CN/Y2019/V26/I6/700

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