Experimental Investigation on Bio-Machining of Nickel, Titanium and Nitinol (Shape Memory Alloys) Using Acidithiobacillus ferrooxidans Microorganisms

Micromachining plays a vital role in the manufacturing industry producing microcomponents with high sensitivity and fine dimensional tolerances for implant materials medical applications. Micro-machining can be carried out through various machining processes like physical, chemical biological processes, although use of is limited. In machining, microorganisms are used as source energy to machine components, microorganism brings lot advantages process production components lower resources, low cost, no heat-affected zone tolerances, which makes it suitable materials. other conventional unconventional zone, environmental-related problems major issues, these generate more heat while machining. This damages material, will not able certain applications, this issue overcome by bio-machining. present work, nickel, titanium nitinol manufactured using powder metallurgy technique. They 10 mm diameter 5 thick pellet. The fabricated shape memory alloys machined Acidithiobacillus ferrooxidans obtain better material removal rate surface roughness check bio-machining performance considering parameters such shaking speed, temperature, pH percentage ferric content future scope biomedical Considering parameters, play speed time process, was observed that achieved at temperature 30 °C, 140 rpm 72 h.