Analysis of surface characteristics of titanium during ECM. (17th October 2011)

• Record Type: Journal Article
• Authors: Dhobe, Shirish D.; Doloi, B.; Bhattacharyya, B.
• Is Part Of: International journal of machining and machinability of materials. Volume 10:Number 4(2011)
• Page Start: 293
• Page End: 309
• Publication Date: 2011-10-17
• Subjects: electrochemical machining -- metal removal rate -- root mean square roughness -- maximum height of peaks -- maximum depth of valleys -- mean line peak spacing; Machining -- Periodicals; Metals -- Machinability -- Periodicals; 671.35
• Languages: English
• ISSNs: 1748-5711

Abstract

Surface phenomenon plays a decisive role in the pre-designed behaviour of titanium parts in a variety of applications. Titanium is extensively used in aerospace, defence, and biomedical applications. The human response to implanted titanium parts strongly related to the implant surface conditions. The aim of this paper is to present experimental investigation on electrochemically machined surface characteristics acquired on titanium, utilising developed cross flow electrolyte system. Effect of applied voltage across the tool and workpiece as well as electrolyte flow velocity during ECM process, for generation of different surface characteristics, has been successfully studied through experimentation. Attempt has been made to develop surface along with self-generated oxide layer, which facilitates in improving the corrosion and chemical resistance of titanium implant in biomedical application. The surface roughness 'Rq' of oxide layered machined surface obtained within 3.09 µm to 3.66 µm, which is within the range for functional attachment between bone and implant.