Effect of Tool Edge Geometry on Energy Dissipation in Ultraprecision Machining

Lucca, D.A.; Seo, Y.W.; Komanduri, R.

doi:10.1016/s0007-8506(07)62397-x

Cited by 173 publications

(85 citation statements)

References 14 publications

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“…The concept has emerged of a critical ratio of uncut chip thickness a c to edge radius r e , below which chip formation changes from cutting to ploughing dominated. Below the critical value, large increases in specific forces have been measured [2,3]. Changed surface appearances from clean cut to burnished have been reported [4,5].…”

Section: Introductionmentioning

confidence: 94%

The influence of cutting edge sharpness on surface finish in facing with round nosed cutting tools

Childs

Dornfeld

Lee

et al. 2008

CIRP Journal of Manufacturing Science and Technology

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Section: Introductionmentioning

confidence: 94%

The influence of cutting edge sharpness on surface finish in facing with round nosed cutting tools

Childs

Dornfeld

Lee

et al. 2008

CIRP Journal of Manufacturing Science and Technology

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“…The experimental studies of Lucca et al [13,14] on the force system which results when machining at small depths of cut have shown that the cutting process can be considered to transition from a cutting dominant to sliding/plowing dominant process as depth of cut is decreased. In particular, the effect of the tool edge geometry is seen to play an important role in this transition.…”

Section: 2mentioning

confidence: 99%

Material Removal Mechanisms in Lapping and Polishing

et al. 2003

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“…Developing predictive techniques to improve the quality of micro parts has emerged as an important research area. In micromachining, the interaction between the cutting edge geometry and the work material significantly affects the outcome of the process [4]. Mechanistic modeling approach is commonly used in modeling the micromachining process [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Investigating the influence of friction conditions on finite element simulation of microscale machining with the presence of built-up edge

Oliaei

2016

Int J Adv Manuf Technol

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In micromachining, the uncut chip thickness is less than the cutting tool edge radius, which results in a large negative effective rake angle. Depending on the material properties, this large negative rake angle promotes built-up edge (BUE) formation. A stable BUE acts like a cutting edge and affects the mechanics of the process. The size of the BUE increases with increasing uncut chip thickness and cutting speed. It also creates a positive rake angle, but it decreases the clearance angle of the tool. A method of including BUE formation in finite element simulations is to use sticking friction conditions at the tip of the tool. However, this approach is shown to be insufficient to simulate BUE formation in microscale machining. Therefore, the cutting edge is modified with the experimental BUE size in the finite element simulations based on experimental measurements. The influence of friction models between BUE and the work material has been investigated, and the study identifies friction coefficients that yield good agreements with experimental results. The finite element model is shown to be capable of simulating process forces and chip shapes for uncut chip thickness values larger than minimum uncut chip thickness.

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Effect of Tool Edge Geometry on Energy Dissipation in Ultraprecision Machining

Cited by 173 publications

References 14 publications

The influence of cutting edge sharpness on surface finish in facing with round nosed cutting tools

The influence of cutting edge sharpness on surface finish in facing with round nosed cutting tools

Material Removal Mechanisms in Lapping and Polishing

Investigating the influence of friction conditions on finite element simulation of microscale machining with the presence of built-up edge

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