Development of Empirical Model for Biomachining to Improve Machinability and Surface Roughness of Polycrystalline Copper

Muhammad, Imran; Khatoon, Tayyaba; Sahar, Muhammad Sana Ullah; Ko, Tae Jo

doi:10.1007/s40684-018-0020-y

Cited by 15 publications

(3 citation statements)

References 30 publications

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“…11,12 A. ferrooxidans has been shown to have a high survival rate when preserved under specific parameters. 13,14 This article is licensed under CC-BY-NC-ND 4 Specifically, the pH plays an important role in the active locomotion of A. ferrooxidans. 15 Nevertheless, the complexity of the entire culture process, including culture media preparation, sterilization, aseptic inoculation, and constant temperature incubator operation, has not been significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

“…This bacterium requires specific living environment conditions. The metabolic activity of bacteria is the main energy source for biomachining; thus, the growth and reproduction of bacteria greatly influence the processing performance . In one study, an orthogonal experiment was conducted, and increasing the A.…”

Section: Introductionmentioning

confidence: 99%

“…The metabolic activity of bacteria is the main energy source for biomachining; thus, the growth and reproduction of bacteria greatly influence the processing performance. 4 In one study, 5 an orthogonal experiment was conducted, and increasing the A. ferrooxidans concentration improved both the material removal rate (MRR) and stability of the instantaneous MRR. Therefore, a reliable and efficient bacterial culture method is considered a fundamental requirement of biomachining.…”

Section: Introductionmentioning

confidence: 99%

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Simplification of the Acidithiobacillus ferrooxidans Culture Process for Expanding the Field of Biomachining

Ma,

Zheng,

Huang

et al. 2024

ACS Omega

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Biomachining is an eco-friendly metal processing method with broad application potential. Nevertheless, the bacterial culture methods that are currently involved in biomachining require the intensive use of chemical reagents, especially FeSO 4 , specialized equipment, and professional-level skills in the field of biology. Herein, the differences between two cultures with and without sterilization were evaluated. Acidithiobacillus ferrooxidans was cultured with iron instead of FeSO 4 in the culture medium. The chemical and biochemical parameters of the culture were analyzed by studying the area of exposed iron and continuously regulating the pH. Eliminating the sterilization and sterile inoculation of the medium is feasible for culturing A. ferrooxidans. The key to achieving a high bacterial density in culture with iron was to maintain the solution pH. The possibility of mass culturing A. ferrooxidans with steel cuttings was evaluated in a custom bioreactor, and the bacterial concentration reached 9 × 10 7 cells/mL.

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