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An approach for quantification of friction and enhancing the process efficiency during polishing of optical glass

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Abstract

Quantification of friction may provide insights into the material removal behavior of polishing process. In this study, frictional force at the workpiece-polisher interface is measured using customised instrumentation setup (miniature load cell: 0–25 lbf) at different combinations of process parameters during polishing of BK7 optical glass. It is observed that frictional force varies with polishing time and is also a function of process parameters. It is observed that friction coefficient (~0.1) indicates the ductile material removal from the workpiece surface while friction coefficient (~0.3) indicates ductile cum brittle fracture behavior, which is also verified through surface texture observed through optical interferometer. Friction coefficient indicates that workpiece and polisher surfaces are in solid-solid contact mode. Hence, mechanical actions are dominant over chemical actions in removing the material from workpiece surface. Further variation of surface parameters w.r.t. wear index is estimated and way to enhance the polishing process efficiency is suggested.

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Authors and Affiliations

  1. Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Scientific Instruments Organisation (CSIR-CSIO) Campus, Sector 30 C, Chandigarh, 160030, India

    Raj Kumar Pal, Rohit Sharma, Prabhat Kumar Baghel, Harry Garg & Vinod Karar

  2. Optical Devices and Systems, CSIR-CSIO, Sector 30 C, Chandigarh, 160030, India

    Raj Kumar Pal, Rohit Sharma, Prabhat Kumar Baghel, Harry Garg & Vinod Karar

Authors
  1. Raj Kumar Pal
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  2. Rohit Sharma
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  3. Prabhat Kumar Baghel
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  4. Harry Garg
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  5. Vinod Karar
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Correspondence to Raj Kumar Pal.

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Recommended by Associate Editor Yongho Jeon

Raj Kumar Pal is a Scientist in the Department of Optical Devices and Systems at CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Chandigarh (India). He received M.Tech. in Advanced Instrumentation Engineering in 2011 from Academy of Scientific and Innovative Research, CSIR-CSIO Campus, Chandigarh and B.Tech in Mechanical Engineering in 2008 from Vellore Institute of Technology University, Vellore, Tamil Nadu (India). His areas of interests are optical design, optical fabrication, and precision opto-mechanical system development. He is a member of OSA, SPIE, OSI, IETE, and IAENG.

Raj Kumar Pal is a Scientist in the Department of Optical Devices and Systems at CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Chandigarh (India). He received M.Tech. in Advanced Instrumentation Engineering in 2011 from Academy of Scientific and Innovative Research, CSIR-CSIO Campus, Chandigarh and B.Tech in Mechanical Engineering in 2008 from Vellore Institute of Technology University, Vellore, Tamil Nadu (India). His areas of interests are optical design, optical fabrication, and precision opto-mechanical system development. He is a member of OSA, SPIE, OSI, IETE, and IAENG. Rohit Sharma is a Research Scholar at CSIR-CSIO Chandigarh. He did his bachelor in Mechanical Engineer from Himachal Pradesh University and obtained Masters in Engineering from PEC University of Technology, Chandigarh. His research areas are Precision Machining, Advance Manufacturing, Diamond Turning, Surface characterization. He has 5+ years of work experience in R & D institute and 2 years of teaching experience. He has 10 + publications in various International & national journals & conference proceedings.

Prabhat Kumar Baghel is currently working as Senior Scientist in Department of Optical devices and systems at CSIR-Central Scientific Instruments Organisation, Chandigarh, India. HE had received Master of Technology in Optoelectronics in 2003 and Bachelor of Engineering in Electronics and Telecommunication. His research interest is in the field of optics and photonics particularly in precision optical fabrication using non-conventional techniques.

Harry Garg (Ph.D. Mechanical) is working as a Senior Scientist in CSIRCSIO, Chandigarh. He is having 10+ years of experience in the field of Research and Development for Strategic and Defence instrumentation. His research activities include R&D in the area of optics, photonics, mechanical, thermal and electronic modules. Another areas of research are ferro-fluids for cooling systems, deterministic grinding and polishing and many more. He has 15+ publications in various national and international journals and conference proceedings.

Vinod Karar is presently working as Senior Principal Scientist, Coordinator & Professor, Academy of Scientific & Innovative Research (AcSIR-CSIO), and Head, Optical Devices & Systems, CSIR-Central Scientific Instruments Organisation, Chandigarh, India. His areas of expertise are Avionics, Optical Devices and Systems, Optronics, and System Engineering. He completed his Ph.D. (engineering) from Thapar University, Patiala, India; ME (electronics engineering) from Punjab Engineering College (presently known as PEC University of Technology), Chandigarh, India; and BE (electronics engineering) from Maulana Azad Regional Engineering College now known as Maulana Azad National Institute of Technology), Bhopal, India. He joined CSIR-CSIO Chandigarh in July 1993. He has handled more than 14 R&D projects of national importance and developed more than 14 technologies for strategic, medical and industrial applications. He has more than 150 technology documents, 140 journal and conference publications, 01 patent and 01 book chapter to his credit. He has guided more than 250 UG, 32 PG and 12 PhD students. He has received several technology awards. He is a fellow of IETE, IEI, OSI, ASI, Member of IEEE, OSA, and various other professional bodies.

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Pal, R.K., Sharma, R., Baghel, P.K. et al. An approach for quantification of friction and enhancing the process efficiency during polishing of optical glass. J Mech Sci Technol 32, 3835–3842 (2018). https://doi.org/10.1007/s12206-018-0735-2

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  • DOI: https://doi.org/10.1007/s12206-018-0735-2

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