A Study on Biomachining of Aluminium Alloy 4004 Using Acidithiobacillus ferrooxidans

Verma, Pallvi; Sodhi, Amanpreet Kaur; Bhanot, Neeraj

doi:10.1007/978-3-030-02707-0_7

Cited by 4 publications

(1 citation statement)

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“…Experimental investigation is not only applicable for exact results, but analytical approaches like Taguchi design, etc., should also be used for identifying better results. The Taguchi design of experiments is used to establish the most influential parameters for a better material removal rate [28]. Successful results of the parameters like temperature, shaking rate and pH value are highly dependent on the material used such as copper, aluminium, zinc, nickel, titanium, etc.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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

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Section: Introductionmentioning

confidence: 99%