Study on chip formation in grinding of nickel-based polycrystalline superalloy GH4169

被引:0
作者
Tao Zhu
Ming Cai
Yadong Gong
Xingjun Gao
Ning Yu
Xiang Li
机构
[1] Liaoning Petrochemical University,School of Mechanical Engineering
[2] Northeastern University,School of Mechanical Engineering and Automation
[3] Liaoning Petrochemical University,School of Innovation and Entrepreneurship
来源
The International Journal of Advanced Manufacturing Technology | 2022年 / 121卷
关键词
Nickel-based superalloy GH4169; Chip formation; Finite element simulation; Grinding;
D O I
暂无
中图分类号
学科分类号
摘要
Based on the variation of the actual cutting depth during the grinding process, a 3D finite element simulation model for grinding nickel-based superalloy GH4169 with single abrasive was initially constructed. Then, the morphological evolution of the grinding chips during the grinding process was studied. In addition, the effect of the single abrasive cutting depth and the grinding speed on chip morphology and segmentation frequency were investigated. Finally, experimental results with the same test parameters verify the finite element simulation results. The results showed that in the experimental grinding speed range, the sawtooth lamellar chip with the free surface being serrated and the contact surface being smooth due to the extrusion of the abrasive are easy to produce when grinding nickel-based superalloy GH4169. As the grinding speed increases, the chip morphology changes from a unitary lamellar chip to a continuous serrated chip, developing into a continuous ribbon chip. The chip segmentation frequency is mainly determined by grinding depth and grinding speed. To be specific, the smaller the grinding depth and the greater the grinding speed, the greater the chip formation frequency.
引用
收藏
页码:1135 / 1148
页数:13
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