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A study on the process efficiency of laser-assisted machining investigating energy consumption

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Abstract

Laser-assisted machining (LAM) has emerged as an effective process to facilitate the machining of several difficult-to-cut materials, including ceramics, titanium alloys, and nickel alloys. During LAM, the material is preheated by a laser beam, which leads to thermal softening. The softened material is removed by the cutting tool. Methods of improving LAM, by reducing cutting force, increasing tool life, and improving surface roughness, have been studied. While LAM effectiveness has been proven, there are few studies about LAM efficiency. In this study, the energy consumption of LAM laser power and depth of cut was analyzed for Ti-6Al-4V alloy. In addition, LAM process efficiency compared with conventional machining (CM) was experimentally analyzed, and optimized conditions were obtained. Under optimal conditions, LAM machining efficiency and process efficiency were improved by 230% and 104%, respectively, compared with CM.

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Funding

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A2B5B0307020612, No. 2020R1A5A808320112).

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Authors and Affiliations

  1. School of Mechanical Engineering, Changwon National University, #9 Sarim-dong, Changwon-si, Gyeongsangnam-do, 641-773, Republic of Korea

    Won-Jung Oh & Choon-Man Lee

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  1. Won-Jung Oh
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Contributions

Conceptualization, W.O.; data curation, W.O.; thermal analysis, W.O.; funding acquisition, C.L.; supervision, C.L.; writing–original draft, W.O.; writing–review & editing, C.L.

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Correspondence to Choon-Man Lee.

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Oh, WJ., Lee, CM. A study on the process efficiency of laser-assisted machining investigating energy consumption. Int J Adv Manuf Technol 113, 867–882 (2021). https://doi.org/10.1007/s00170-021-06651-0

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