Study on material removal mechanism and improvement of machining speed in biomachining

Translated title of the contribution: Study on material removal mechanism and improvement of machining speed in biomachining

Akira Okada, Yoshiyuki Uno, Tomoyuki Hisano, Toshiaki Kaneeda

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Biomachining is a novel machining technology and is different from the traditional physical and chemical machining methods, in which biological energy of bacteria is used as a main energy source for machining process. Previous report has made it clear that the machining speed becomes higher under proper shaking rate and temperature, higher efficient process can be achieved under electric field, and so on. However, the material removal mechanism has not yet been clarified sufficiently. In this report, the material removal mechanism in biomachining was discussed, by comparing the material removal rate for iron and copper. The experimental results indicate that, in the material removal, bacteria acts on the material not only directly, but also indirectly, that is to say, bacteria promotes the change from Fe2+ion to Fe 3+ion which has powerful oxidizing effects and makes the material dissolved. Furthermore, the effects of cultured fluid flow on machining characteristic were investigated. As a result, the cultured fluid flow significantly influences the machining rate, and high efficient machining can be achieved by jetting out the cultured fluid from nozzle with high flow rate.

Translated title of the contributionStudy on material removal mechanism and improvement of machining speed in biomachining
Original languageJapanese
Pages (from-to)1585-1589
Number of pages5
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Volume68
Issue number12
DOIs
Publication statusPublished - Dec 2002
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering

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