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硬质合金切槽车刀性能分析及工艺参数优化    

Performance Analysis and Parameters Optimization of Cemented Carbide Grooving Tool

文献类型:期刊文献

中文题名:硬质合金切槽车刀性能分析及工艺参数优化

英文题名:Performance Analysis and Parameters Optimization of Cemented Carbide Grooving Tool

作者:王仁伟 邵芳 何玲

第一作者:王仁伟

机构:[1]贵州大学现代制造技术教育部重点实验室,贵州贵阳550003;[2]贵州理工学院教务处,贵州贵阳550003

第一机构:贵州大学现代制造技术教育部重点实验室,贵州贵阳550003

年份:2018

期号:5

起止页码:166-169

中文期刊名:机械设计与制造

外文期刊名:Machinery Design & Manufacture

收录:CSTPCD;;北大核心:【北大核心2017】;

基金:国家自然科学基金项目(51465009);贵州省科学技术基金项目(黔科合J字[2014]2085号);贵州省教育厅重大科技专项(黔教合重大专项字[2014]035号);贵州大学研究生创新基金资助(研理工2016024)

语种:中文

中文关键词:切槽车刀;切削温度;磨损速率;参数优化

外文关键词:Grooving Tool; Cutting Temperature; Wear Rate; Parameters Optimization

摘要:切槽车刀工作环境封闭,工作状况恶劣,使得刀具温度高和刀具磨损的问题尤为突出。运用数值计算方法建立了硬质合金切槽车刀车削加工钛合金环槽过程模型,基于传热学和Usui磨损理论计算车削过程中刀具最高温度和刀具磨损速率。对环槽车削过程的热力耦合计算结果进行分析,获得了刀具在切削过程中的温度及磨损速率的变化规律。建立了刀具温度和磨损速率的预测模型,运用遗传算法对预测模型进行求解,得到满足要求的工艺参数组合。结果表明,刀具温度和磨损速率与工艺参数之间关系密切。通过应用优化算法对切削工艺参数进行优化,使得目标函数值增加了30%,运用切削实验验证了优化后的工艺参数能够有效提高硬质合金切槽车刀的性能。
The high temperature and wear problem of grooving tool is particularly prominent due to the closure of the work environment and poor working conditions. The titanium alloy ring groove machining process model was established by using the numerical method. The tool temperature and wear rate were calculated based on the theory of heat transfer and Usui wear.The rules of temperature and wear rate changing of the grooving tool in machining process were obtained by the analysis of the thermal mechanical coupling calculation results. The prediction model of tool temperature and wear rate was established,and solved by genetic algorithm,last the combination of process parameters to meet the requirements were obtained. The results show that there is a close relationship between tool temperature and tool rake face wear rate and process parameters. The objective function value is increased by 30% by the parameters were optimized using the optimization algorithm,the optimized process parameters are verified by experiments can effectively improve the performance of cemented carbide grooving tool.

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