Title: Diamond turning of optical materials: a review

Authors: Bhaskar Goel; Sehijpal Singh; RamaGopal V. Sarepaka; Vinod Mishra; Neha Khatri; Vivek Aggarwal; Keshva Nand; Raj Kumar

Addresses: Department of Mechanical Engineering, Shoolini University, Solan, Himachal Pradesh, India ' Department of Mechanical Engineering, Guru Nanak Dev Engineering College (GNDEC), Ludhiana, Punjab, India ' Optics & Allied Engg. Pvt. Ltd., Bengaluru, 560099, India; CSIR-CSIO, Chandigarh, 160030, India ' National Aspheric Facility, CSIR-CSIO, Chandigarh, India ' National Aspheric Facility, CSIR-CSIO, Chandigarh, India ' Department of Mechanical Engineering, I.K. Gujral Punjab Technical University, Main Campus, Kapurthala, India ' Astro-physical Sciences Division, Bhabha Atomic Research Center, Ladakh, India ' Department of Mechanical Engineering, Shoolini University, Solan, Himachal Pradesh, India

Abstract: Single point diamond turning SPDT is key technology to overcome the shortcomings of conventional machining of optical components. In the last decade, researchers explored various factors of SPDT to improve the machinability of optical materials. Collection of these studies in the form of detail review is missing. In this paper, existing literature has been studied in three categories of optical materials, i.e., ductile, polymers and brittle materials keeping in view of their usage for lenses and moulds. Most of the authors have analysed the effect of three input variables namely depth of cut, spindle speed and tool feed rate on surface roughness. This paper emphasises on review of effect of all the input variables, i.e., nose radius, depth of cut, rake angle, feed rate, tool overhang, spindle speed, etc. Effects of all these process variables are reviewed not only on surface roughness but also on profile error and waviness error.

Keywords: single-point diamond turning; grey relational analysis; profile error; ductile regime machining; surface roughness; sub-surface damage; SSD; waviness error.

DOI: 10.1504/IJMMM.2021.114016

International Journal of Machining and Machinability of Materials, 2021 Vol.23 No.2, pp.160 - 190

Received: 20 May 2020
Accepted: 09 Sep 2020

Published online: 18 Mar 2021 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article