工程科学学报，第39卷.第8期：1207-1214,2017年8月 Chinese Journal of Engineering,Vol.39,No.8:1207-1214,August 2017 D0L:10.13374/j.issn2095-9389.2017.08.010;htp:/journals..usth.edu.cn 新型硬质合金微坑车刀切削能对比研究与预测 占 刚13)，何林12)区，蒋宏婉)，邹中妃) 1)贵州大学机械工程学院，贵阳5500252)贵州师范学院，贵阳5500183)贵州电子信息职业技术学院，凯里556000 ☒通信作者，E-mail:hein6568@163.com 摘要切削能绝大部分会转化为切削热，进而直接影响切削温度，因此研究切削能的产生、传递与转化对切削温度的研究 尤显重要.本文以304不锈钢专用新型硬质合金微坑车刀创新设计为例，通过对新型微坑车刀和原车刀切削过程的切削能比 较研究，建立车刀切削过程切削能与前刀面温度的关系模型，开展新型微坑车刀剪切能和摩擦能的预测研究和切削实验验 证.研究结果表明，用实际生产推荐切削参数，干式切削情况下，新型硬质合金微坑车刀相比原车刀，输人能量降低8.96%， 剪切能降低10.50%，摩擦能降低5.32%：刀具前刀面的切削温度与剪切能和摩擦能呈正相关关系：所建立切削能预测模型 可为复杂切削条件下的切削能预测及前刀面切削温度研究提供参照。 关键词切削能：剪切能：摩擦能：预测模型：304不锈钢 分类号TG712 Performance comparison and prediction of cutting energy of new cemented carbide micro-pit turning tool ZHAN Gang'),HE Lin),JIANG Hong-wan,ZOU Zhong-fei 1)School of Mechanical Engineering.Guizhou University,Guiyang 550025,China 2)Guizhou Normal College,Guiyang 550018.China 3)Guizhou Vocational Technology college of Eleetronics Information,Kaili 556000,China Corresponding author,E-mail:helin6568@163.com ABSTRACT Cutting energy can be transformed into cutting heat,which directly affects the cutting temperature.Therefore,it is im- portant to understand the generation,transfer,and transformation of cutting energy to cutting temperature.In this paper,an innovation design of a new cemented carbide micro-pit turning tool specially cutting 304 stainless steel was taken as an example.Through compar- ative studying the cutting performance of new micro-pit turning tool and original turning tool,the relationship model between cutting energy and cutting temperature of rake face was established.And the prediction of shear energy and friction energy of the new micro- pit turning tool and experimental verification were carried out.The results show the input energy to be reduced by 8.96%,the shear energy to be decreased by 10.50%and the friction energy to be reduced by 5.32%compared with the original turning tool under dry cutting conditions using the manufacturer's recommended cutting parameters.The cutting surface temperature can be reduced by a de- crease in the cutting energy.The cutting energy prediction model can serve as a reference for predicting cutting energies and cutting face temperatures under complex cutting conditions. KEY WORDS cutting energy;shear energy;friction energy;prediction model;304 stainless steel 在金属切削过程中，所有与切屑形成有关系的能 传入工件和周边环境，其余部分传入刀具，导致刀具温 量基本上都转化成热能，其中大部分被切屑带走，少量 度升高，加剧刀具磨损，降低刀具寿命.切削温度一直 收稿日期：2016-09-22 基金项目：国家自然科学基金资助项目(51265005,51665007)：教育部博士点基金资助项目(20125201110001)工程科学学报,第 39 卷,第 8 期:1207鄄鄄1214,2017 年 8 月 Chinese Journal of Engineering, Vol. 39, No. 8: 1207鄄鄄1214, August 2017 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2017. 08. 010; http: / / journals. ustb. edu. cn 新型硬质合金微坑车刀切削能对比研究与预测 占 刚1,3) , 何 林1,2) 苣 , 蒋宏婉1) , 邹中妃1) 1) 贵州大学机械工程学院, 贵阳 550025 2) 贵州师范学院, 贵阳 550018 3) 贵州电子信息职业技术学院, 凯里 556000 苣 通信作者,E鄄mail:helin6568@ 163. com 摘 要 切削能绝大部分会转化为切削热,进而直接影响切削温度,因此研究切削能的产生、传递与转化对切削温度的研究 尤显重要. 本文以304 不锈钢专用新型硬质合金微坑车刀创新设计为例,通过对新型微坑车刀和原车刀切削过程的切削能比 较研究,建立车刀切削过程切削能与前刀面温度的关系模型,开展新型微坑车刀剪切能和摩擦能的预测研究和切削实验验 证. 研究结果表明,用实际生产推荐切削参数,干式切削情况下,新型硬质合金微坑车刀相比原车刀,输入能量降低 8郾 96% , 剪切能降低 10郾 50% ,摩擦能降低 5郾 32% ;刀具前刀面的切削温度与剪切能和摩擦能呈正相关关系;所建立切削能预测模型 可为复杂切削条件下的切削能预测及前刀面切削温度研究提供参照. 关键词 切削能; 剪切能; 摩擦能; 预测模型; 304 不锈钢 分类号 TG712 Performance comparison and prediction of cutting energy of new cemented carbide micro鄄pit turning tool ZHAN Gang 1,3) , HE Lin 1,2) 苣 , JIANG Hong鄄wan 1) , ZOU Zhong鄄fei 1) 1) School of Mechanical Engineering, Guizhou University, Guiyang 550025, China 2) Guizhou Normal College, Guiyang 550018, China 3) Guizhou Vocational Technology college of Electronics & Information, Kaili 556000, China 苣 Corresponding author, E鄄mail: helin6568@ 163. com ABSTRACT Cutting energy can be transformed into cutting heat, which directly affects the cutting temperature. Therefore, it is im鄄 portant to understand the generation, transfer, and transformation of cutting energy to cutting temperature. In this paper, an innovation design of a new cemented carbide micro鄄pit turning tool specially cutting 304 stainless steel was taken as an example. Through compar鄄 ative studying the cutting performance of new micro鄄pit turning tool and original turning tool, the relationship model between cutting energy and cutting temperature of rake face was established. And the prediction of shear energy and friction energy of the new micro鄄 pit turning tool and experimental verification were carried out. The results show the input energy to be reduced by 8郾 96% , the shear energy to be decreased by 10郾 50% and the friction energy to be reduced by 5郾 32% compared with the original turning tool under dry cutting conditions using the manufacturer蒺s recommended cutting parameters. The cutting surface temperature can be reduced by a de鄄 crease in the cutting energy. The cutting energy prediction model can serve as a reference for predicting cutting energies and cutting face temperatures under complex cutting conditions. KEY WORDS cutting energy; shear energy; friction energy; prediction model; 304 stainless steel 收稿日期: 2016鄄鄄09鄄鄄22 基金项目: 国家自然科学基金资助项目(51265005,51665007);教育部博士点基金资助项目(20125201110001) 在金属切削过程中,所有与切屑形成有关系的能 量基本上都转化成热能,其中大部分被切屑带走,少量 传入工件和周边环境,其余部分传入刀具,导致刀具温 度升高,加剧刀具磨损,降低刀具寿命. 切削温度一直