当前位置: 首页 > 文章 > 高温合金高速切削锯齿形切屑应变与应变率研究 农业机械学报 2011,42 (2) 225-228
Position: Home > Articles > Strain and Strain Rate of Serrated Chip Generated by High Speed Cutting of Superalloys Transactions of the Chinese Society for Agricultural Machinery 2011,42 (2) 225-228

高温合金高速切削锯齿形切屑应变与应变率研究

作  者:
杨奇彪;刘战强;曹成铭;杜劲
单  位:
山东大学机械工程学院
关键词:
高速切削;锯齿形切屑;高温合金;切屑变形;应变
摘  要:
在分析锯齿形切屑形成的基础上,将切屑单个锯齿视为梯形,建立梯形各顶点的应变和应变率计算解析模型。进行高速切削GH4169实验,并收集实验获得的切屑。运用解析模型,分析不同切削速度下,高温合金GH4169切屑的变形情况。实验结果表明:在切削速度200~1 000 m/min范围内,随着切削速度的增加,GH4169切屑变形程度增大,应变和应变率最大可分别达到4.91和4.59×106s-1。
译  名:
Strain and Strain Rate of Serrated Chip Generated by High Speed Cutting of Superalloys
作  者:
Yang Qibiao Liu Zhanqiang Cao Chengming Du Jin(School of Mechanical Engineering,Shandong University,Ji'nan 250061,China)
关键词:
High speed cutting,Serrated chip,Superalloy,Chip deformation,Strain
摘  要:
An analytical model of vertex's shear strain and shear strain rate was developed based on the process of serrated chip formation with geometry shape of serrated chip as a trapezoid.The chip deformations under different cutting speeds for GH4169 were discussed with the proposed model.The results showed that with the cutting speed increasing,the degree of chip deformation increased.The maximums of strain and strain rate were respectively 4.91 and 4.59×106 s-1 with applied cutting speed range in 200~1 000 m/min.

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