Cutting Force Simulation of Aluminum Alloy 7075 by DEFORM-3D Software and Its Selection of Fracture Criterion

WANG Cheng; ZHU Yangyang; NI Hongjun; SHEN Weiping; ZHU Yu

doi:10.11973/jxgccl201902014

Materials and Mechanical Engineering > 2019 > 43(2): 69-72,77. > DOI: 10.11973/jxgccl201902014

WANG Cheng, ZHU Yangyang, NI Hongjun, SHEN Weiping, ZHU Yu. Cutting Force Simulation of Aluminum Alloy 7075 by DEFORM-3D Software and Its Selection of Fracture Criterion[J]. Materials and Mechanical Engineering, 2019, 43(2): 69-72,77. DOI: 10.11973/jxgccl201902014

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Cutting Force Simulation of Aluminum Alloy 7075 by DEFORM-3D Software and Its Selection of Fracture Criterion

1. School of Mechanical Engineering, Nantong University, Nantong 226019, China;
2. Nantong Baisheng Precision Machinery Co., Ltd., Nantong 226300, China

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Received Date: November 07, 2017
Revised Date: October 28, 2018

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Abstract

The finite element cutting model of 7075 aluminum alloy was established, and the change of cutting force in cutting process was simulated by DEFORM-3D software with the default fracture criterion, and verified by experiments. The cutting model was used to simulate the cutting forces with Freudenthal, Cockcroft-Latham, Normalized and Ayada fracture criteria, respectively, and the applicability of the different fracture criteria was analyzed. The results show that the relative error between the simulated average cutting force and the measured value with the default fracture criterion was below 10%, verifying the accuracy of the finite element cutting model. The relative error between the average cutting force simulated with Freudenthal fracture criterion and the measured value was relatively large, whereas the relative errors with Cockcroft-Latham, Normalized and Ayada fracture criteria were all within 9%. Ayada fracture criterion was the most suitable for simulating the cutting of 7075 aluminum alloy, followed by Cockcroft-Latham and Normalized fracture criteria.
- aluminum alloy,
- cutting force,
- fracture criterion,
- chip shape

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Cutting Force Simulation of Aluminum Alloy 7075 by DEFORM-3D Software and Its Selection of Fracture Criterion

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