Enabling ultra high precision on hard steels using surface defect machining

Waleed Bin Rashid, Saurav Goel, Xichun Luo

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)
111 Downloads (Pure)


This paper is an extension to an idea coined during the 13th EUSPEN Conference (P6.23) named "surface defect machining" (SDM). The objective of this work was to demonstrate how a conventional CNC turret lathe can be used to obtain ultra high precision machined surface finish on hard steels without recourse to a sophisticated ultra precision machine tool. An AISI 4340 hard steel (69 HRC) workpiece was machined using a CBN cutting tool with and without SDM. Post-machining measurements by a Form Talysurf and a Scanning Electron Microscope (FEI Quanta 3D) revealed that SDM culminates to several key advantages (i) provides better quality of the machined surface integrity and offers (ii) lowering feed rate to 5μm/rev to obtain a machined surface roughness of 30 nm (optical quality).
Original languageEnglish
Number of pages4
Publication statusPublished - 04 May 2014
Event14th EUSPEN Conference - Dubrovnik, Croatia
Duration: 02 Jun 201406 Jun 2014


Conference14th EUSPEN Conference


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