Biomachining: A Sustainable Alternative to Conventional Micromachining Techniques – A Comprehensive Review

• Дата: 2025
• Автори: Suresh, A., Abraham, J., Shetty, M., Oyyaravelu, R., Суреш, А., Абрахам, Й., Шетті, М., Ояравелу, Р., Абрахам, Д.
• Формат: Стаття
• Мова: English
• Опубліковано: PH "Akademperiodyka" of the NAS of Ukraine 2025
• Онлайн доступ: https://ojs.microbiolj.org.ua/index.php/mj/article/view/155
• Назва журналу: Microbiological Journal

Biomachining is the use of microorganisms to remove metal from a workpiece. This process has gained importance over the past decade due to its low energy consumption rate and lack of heat-affected zone during the process. The performance of this sustainable process is assessed by the material removal rate, and certain parameters have to be controlled for manufacturing the machined part with the desired surface finish. Majorly, two factors play a vital role in speeding up the biomachining process – the effect of concentration of FeSO4 and the effect of temperature). Aim. This review article focuses on the various partheameters/factors and mechanisms involved in the biomachining process over the conventional mechanical machining practices like laser machining, chemical machining, and electric discharge machining. A variety of microorganisms can be used for the process by maintaining appropriate cell concentration. Chemolithotrophic bacteria such as Acidothiobacillus ferroxidans has been used in biomachining of metals like copper, etc. Conclusions. These bacteria are used due to their property of catalyzing the oxidation of inorganic substances. Biomachining is a suitable process for micromachining of metals.