Bending of Drill and Radial Forces in Micro Drilling

Osamu Horiuchi; Masami Masuda; Takayuki Shibata

doi:10.4028/www.scientific.net/AMR.797.642

Paper Titles

Experiment Research on Grinding Temperature of Micro-Grinding H62
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Finite Element Simulation of Minimum Uncut Chip Thickness in Micro Mill-Grinding Ti6Al4V Based on Single-Edge Single-Grit Model
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The Dynamic Analysis of Micro-Scale Edge in the Process of Micromilling
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Fabrication of Surface Microtexture by Vibration Assisted Cutting
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Bending of Drill and Radial Forces in Micro Drilling
p.642

An Approach to Improve Machined Surface Finish in Micro Milling
p.649

Experimental Research on Surface Residual Stress of Quenched GCr15 Steel in Ultrasonic Aided Turning
p.657

Effect of Low-Frequency Pulsed Magnetic Treatment on Micro-Hardness of High Speed Steel
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Indentation Crack Initiation and Ductile to Brittle Transition Behavior of Fused Silica
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 797Bending of Drill and Radial Forces in Micro...

Bending of Drill and Radial Forces in Micro Drilling

Abstract:

This paper describes theoretical analysis of bending deflection and anisotropic rigidity of drill, and the induced radial forces in micro drilling. The main results obtained are as follows. (1) There are two different modes of drilling which cause bending deflection of drill and induce radial forces. They are position error mode and run-out mode. (2) The radial forces induced behave quite differently between the two modes. (3) The radial forces increases as the depth of hole increases, because the rigidity of drill beam increases. (4) The position error mode induces a cyclic stress in the drill which may cause a fatigue breakage.

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Periodical:

Advanced Materials Research (Volume 797)

Pages:

642-648

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.797.642

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Online since:

September 2013

Authors:

Osamu Horiuchi, Masami Masuda, Takayuki Shibata

Keywords:

Anisotropic Rigidity, Fatigue, Micro-Drilling, Position Error, Radial Force, Run-out

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References

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