硬质合金刀具车削GH4169二次包络环面蜗杆切削参数优化研究  

Optimisation of cutting parameters for turning GH4169 secondary envelope ring worm with carbide tools

作　　者：崔莹[1] 赵奔 于洋[2] CUI Ying;ZHAO Ben;YU Yang(School of Civil Engineering,Xi’an Shiyou University,Xi’an 710065,CHN;School of Mechanical Engineering,Xi’an Shiyou University,Xi’an 710065,CHN)

机构地区：[1]西安石油大学土木工程学院,陕西西安710065 [2]西安石油大学机械工程学院,陕西西安710065

出　　处：《制造技术与机床》2024年第12期125-133,共9页Manufacturing Technology & Machine Tool

基　　金：陕西省自然科学基础研究计划面上项目“近场爆炸下POZD增强碳纤维加固含缺陷埋地油气管道损伤评估及抗爆优化研究”(2023-JC-YB296);陕西省教育厅重点科学研究计划项目“天然气集输管道风险定量评估及管理机制研究”(22JT035)。

摘　　要：针对GH4169二次包络环面蜗杆在精加工过程中因过大切削力导致工件表面精度难以达到要求的问题。基于金属切削原理,通过有限元数值模拟及加工试验研究等手段,研究了在加工过程中切削参数改变对切削力的影响规律,对数值模拟结果进行了极差、方差分析;并运用最小二乘法对数值模拟结果进行多元线性回归,建立三向切削力的经验预测模型,以稳定状态下的切削力平均值为指标进行加工试验。结果表明,切削力随切削速度的增加而减小,随切削深度、进给量的增加而增加,且影响主次顺序为切削深度、进给量、切削速度;在研究范围内,切削深度=0.1 mm、进给量=0.05 mm/r、切削速度=45 m/min为最优切削参数。Addressing the challenge of the surface accuracy of the GH4169 doubly enveloped hourglass worm being difficult to meet the required standards due to excessive cutting force during the finishing process.Based on the principle of metal cutting,the influence of cutting parameters on cutting force was studied by means of finite element numerical simulation and machining tests.Additionally,an extreme difference and variance analysis was conducted on the numerical simulation results.Furthermore,employing the method of least squares,a multiple linear regression was applied to the numerical simulation data,leading to the establishment of an empirical prediction model for three-directional cutting forces.Subsequently,machining experiments were conducted,taking the average cutting force as the key indicator.The results revealed that the cutting force decreased with an increase in cutting speed but increased with an increase in cutting depth and feed rate.The primary and secondary order of influence was cutting depth,feed rate,and cutting speed.Within the scope of the study,the optimal cutting parameters were identified as a cutting speed of 45 m/min,a cutting depth of 0.1 mm,and a feed rate of 0.05 mm/r.

关 键 词：GH4169 二次包络环面蜗杆 切削参数优化 数值模拟 切削试验 

分 类 号：TG51[金属学及工艺—金属切削加工及机床]