Dry friction model of percussive drilling

A M  Krivtsov; M  Wiercigroch

doi:10.1023/A:1004703819275

Dry friction model of percussive drilling

A M Krivtsov, M Wiercigroch

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

It is postulated that the main mechanism of the enhancement of material removal rate (MRR) in percussive drilling is associated with generating impact forces, which act on the workpiece and help to develop micro-cracking in the cutting zone. The inherent non-linearity of the discontinuous impact process is modelled as a frictional pair, to generate the pattern of the impact forces. A novel formula for calculating the MRR is proposed, which explains the experimentally observed fall in MRR at higher static forces.

Original language	English
Pages (from-to)	425-435
Number of pages	11
Journal	Meccanica
Volume	34
Issue number	6
DOIs	https://doi.org/10.1023/A:1004703819275
Publication status	Published - Dec 1999

Keywords

nonlinear oscillations
dry friction
drilling
CUTTING PROCESS

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title = "Dry friction model of percussive drilling",

abstract = "It is postulated that the main mechanism of the enhancement of material removal rate (MRR) in percussive drilling is associated with generating impact forces, which act on the workpiece and help to develop micro-cracking in the cutting zone. The inherent non-linearity of the discontinuous impact process is modelled as a frictional pair, to generate the pattern of the impact forces. A novel formula for calculating the MRR is proposed, which explains the experimentally observed fall in MRR at higher static forces.",

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author = "Krivtsov, {A M} and M Wiercigroch",

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AU - Wiercigroch, M

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N2 - It is postulated that the main mechanism of the enhancement of material removal rate (MRR) in percussive drilling is associated with generating impact forces, which act on the workpiece and help to develop micro-cracking in the cutting zone. The inherent non-linearity of the discontinuous impact process is modelled as a frictional pair, to generate the pattern of the impact forces. A novel formula for calculating the MRR is proposed, which explains the experimentally observed fall in MRR at higher static forces.

AB - It is postulated that the main mechanism of the enhancement of material removal rate (MRR) in percussive drilling is associated with generating impact forces, which act on the workpiece and help to develop micro-cracking in the cutting zone. The inherent non-linearity of the discontinuous impact process is modelled as a frictional pair, to generate the pattern of the impact forces. A novel formula for calculating the MRR is proposed, which explains the experimentally observed fall in MRR at higher static forces.

KW - nonlinear oscillations

KW - dry friction

KW - drilling

KW - CUTTING PROCESS

U2 - 10.1023/A:1004703819275

DO - 10.1023/A:1004703819275

M3 - Article

SN - 0025-6455

VL - 34

SP - 425

EP - 435

JO - Meccanica

JF - Meccanica

IS - 6

ER -

Dry friction model of percussive drilling

Abstract

Keywords

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