Chisel edge and cutting lip shape optimization for improved twist drill point design

Anish Paul; Shiv G. Kapoor; Richard E. DeVor

doi:10.1016/j.ijmachtools.2004.09.010

Chisel edge and cutting lip shape optimization for improved twist drill point design

Anish Paul, Shiv G. Kapoor, Richard E. DeVor

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

Abstract

This paper investigates the optimization of twist drill point geometries in order to minimize thrust and torque in drilling. A point geometry parameterization based on the drill grinding parameters is used to ensure manufacturability of the optimized geometry. Three commonly used drill point geometries, namely, conical, Racon^® and helical, are optimized for drilling forces while maintaining the inherent characteristics of each of the profiles. A significant reduction is shown in the drilling forces for the optimized drills. Drills with the optimized conical point profile are produced and tests run to validate the reduction in thrust and torque.

Original language	English (US)
Pages (from-to)	421-431
Number of pages	11
Journal	International Journal of Machine Tools and Manufacture
Volume	45
Issue number	4-5
DOIs	https://doi.org/10.1016/j.ijmachtools.2004.09.010
State	Published - Apr 2005

Keywords

Drill grinding
Drilling
Shape optimization
Thrust and torque

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

Online availability

10.1016/j.ijmachtools.2004.09.010

Library availability

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Cite this

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title = "Chisel edge and cutting lip shape optimization for improved twist drill point design",

abstract = "This paper investigates the optimization of twist drill point geometries in order to minimize thrust and torque in drilling. A point geometry parameterization based on the drill grinding parameters is used to ensure manufacturability of the optimized geometry. Three commonly used drill point geometries, namely, conical, Racon{\textregistered} and helical, are optimized for drilling forces while maintaining the inherent characteristics of each of the profiles. A significant reduction is shown in the drilling forces for the optimized drills. Drills with the optimized conical point profile are produced and tests run to validate the reduction in thrust and torque.",

keywords = "Drill grinding, Drilling, Shape optimization, Thrust and torque",

author = "Anish Paul and Kapoor, {Shiv G.} and DeVor, {Richard E.}",

note = "Funding Information: The authors gratefully acknowledge the support of the National Science Foundation and the UIUC Center for Machine-Tool Systems Research. The authors would also like to acknowledge Dr Xuewen Lin at the S.M. Wu Manufacturing Research Center at the University of Michigan at Ann Arbor for his help in grinding the optimized drills.",

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language = "English (US)",

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AU - Paul, Anish

AU - Kapoor, Shiv G.

AU - DeVor, Richard E.

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PY - 2005/4

Y1 - 2005/4

N2 - This paper investigates the optimization of twist drill point geometries in order to minimize thrust and torque in drilling. A point geometry parameterization based on the drill grinding parameters is used to ensure manufacturability of the optimized geometry. Three commonly used drill point geometries, namely, conical, Racon® and helical, are optimized for drilling forces while maintaining the inherent characteristics of each of the profiles. A significant reduction is shown in the drilling forces for the optimized drills. Drills with the optimized conical point profile are produced and tests run to validate the reduction in thrust and torque.

AB - This paper investigates the optimization of twist drill point geometries in order to minimize thrust and torque in drilling. A point geometry parameterization based on the drill grinding parameters is used to ensure manufacturability of the optimized geometry. Three commonly used drill point geometries, namely, conical, Racon® and helical, are optimized for drilling forces while maintaining the inherent characteristics of each of the profiles. A significant reduction is shown in the drilling forces for the optimized drills. Drills with the optimized conical point profile are produced and tests run to validate the reduction in thrust and torque.

KW - Drill grinding

KW - Drilling

KW - Shape optimization

KW - Thrust and torque

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Chisel edge and cutting lip shape optimization for improved twist drill point design

Abstract

Keywords

ASJC Scopus subject areas

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