Influence of Feed Rate Response (FRR) on Chip Formation in Micro and Macro Machining of Al Alloy

Metals

Navneet Khanna¹  Trung-Thanh Nguyen²  Shubham Sharma³  Mozammel Mia⁴  M. Azizur Rahman⁵  M.M. Musabbir Imtiaz⁵  Md Shahnewaz Bhuiyan⁵  Mohammad Saeed Kamal⁵  Sourav Sharma⁵  Abdullah Alfaify⁶  Saqib Anwar⁶  Munish Kumar Gupta⁷ 

[1] Advanced Manufacturing Laboratory, Institute of Infrastructure Technology, Research and Management, Ahmedabad 380026, India;Department of Manufacturing Technology, Le Quy Don Technical University, 236 Hoang Quoc Viet, Ha Noi 100000, Vietnam;Department of Mechanical Engineering, IKG Punjab Technical University, Jalandhar-Kapurthala Road, Kapurthala, Punjab 144603, India;Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;Department of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, Bangladesh;Industrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China;

关键词: phenomenology;    chip formation;    Al alloy;    feed rate response;    micro/macro machining;   

DOI  :  10.3390/met11010159

来源: DOAJ

【 摘 要 】

In this paper, the investigation of chip formation of aluminum alloy in different machining strategies (i.e., micro and macro cutting) is performed to develop a holistic view of the chip formation phenomenon. The study of chip morphology is useful to understand the mechanics of surface generation in machining. Experiments were carried out to evaluate the feed rate response (FRR) in both ultra-precision micro and conventional macro machining processes. A comprehensive study was carried out to explore the material removal mechanics with both experimental findings and theoretical insights. The results of the variation of chip morphology showed the dependence on feed rate in orthogonal turning. The transformation of discontinuous to continuous chip production—a remarkable phenomenon in micro machining—has been identified for the conventional macro machining of Al alloy. This is validated by the surface crevice formation in the transition region. Variation of the surface morphology confirms the phenomenology (transformation mechanics) of chip formation.

【 授权许可】

Unknown