State of the Art of Micromachining

https://escholarship.org/content/qt8rf718jm/qt8rf718jm.pdf?t=krnesf

Recent Advances in Mechanical Micromachining

Advances in engineered surfaces for functional performance

Chatter suppression techniques in metal cutting

This paper provides a comprehensive review of the literature, mostly of the last 10-15 years, that is enhancing our understanding of the mechanics of the rapidly growing field of micromachining. The paper focuses on the mechanics of the process, discussing both experimental and modeling studies, and includes some work that, while not directly focused on micromachining, provides important insights to the field. Experimental work includes the size effect and minimum chip thickness effect, elastic-plastic deformation, and microstructure effects in micromachining. Modeling studies include molecular dynamics methods, finite element methods, mechanistic modeling work, and the emerging field of multiscale modeling. Some comments on future needs and directions are also offered.

/pdf/the-mechanics-of-machining-at-the-microscale-assessment-of-9kfioocc84.pdf

The Mechanics of Machining at the Microscale: Assessment of the Current State of the Science

Brittle-Ductile Transition Phenomena in Microindentation and Micromachining

Atomic-scale cutting in a computer using crystal models of copper and diamond

Mechanics and Energy Dissipation in Nanoscale Cutting

The stability of cutting system with periodically varying spindle speed is analyzed by means of functional analysis. The dynamic characteristics of both the machine tool structure and cutting process are considered as the linear operators in Hilbert space and the stability problem of the cutting system is solved as an Eigen value problem of these operators. It is proved that two kinds of beat type vibration exist under the stability limit of the system. The amplitude of these beats changes by the same and twice period as that of the spindle speed variation, respectively. The analytical results show that the maximum amplitude of both types of vibration decrease when the frequency of spindle speed variation increases or when the amplitude of spindle speed variation decreases. The analytical results also show that the stability limit of the system rises up when the amplitude of spindle speed variation increases but it is independent of the frequency of spindle speed variation. Finally the stability of the cutting system containing external random vibration is analyzed by using these results and the results show good agreement with the experimental results.

Toyoshiro Inamura

Papers

Brittle-Ductile Transition Phenomena in Microindentation and Micromachining

Atomic-scale cutting in a computer using crystal models of copper and diamond

Mechanics and Energy Dissipation in Nanoscale Cutting

Stability Analysis of Cutting under Varying Spindle Speed

Brittle/Ductile Transition Phenomena Observed in Computer Simulations of Machining Defect-Free Monocrystalline Silicon