Thrust force, torque, and tool wear in drilling the bulk metallic glass

Mustafa Bakkal; Albert J. Shih; Samuel B. McSpadden; Ronald O. Scattergood

doi:10.1016/j.ijmachtools.2004.11.005

Thrust force, torque, and tool wear in drilling the bulk metallic glass

Mustafa Bakkal, Albert J. Shih^*, Samuel B. McSpadden, Ronald O. Scattergood

^*Corresponding author for this work

Department of Mechanical Engineering

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

45 Citations (Scopus)

Abstract

The thrust force, torque, and tool wear in drilling of Zr-based bulk metallic glass (BMG) material are investigated. Drilling the BMG at high speed generates the chip light emission, high tool temperature, and severe tool wear. At low spindle speed, the BMG work-material builds up at the major and margin cutting edges and may break the drill. A range of feasible spindle speed and feed rate for the efficient drilling of BMG without the detrimental chip light emission and cutting edge work-material build-up has been identified in this study. Under the same drilling condition, the WC-Co tool generally requires less thrust force and about the same torque than the high-speed steel tool. The progressive wear of the major and margin cutting edges for BMG drilling is examined. Severe drill wear is associated with the bright BMG chip light emission. Without chip light emission, the drill wear is visible but not severe. This study concluded that precision holes in BMG could be generated with proper selection of tooling and process parameters.

Original language	English
Pages (from-to)	863-872
Number of pages	10
Journal	International Journal of Machine Tools and Manufacture
Volume	45
Issue number	7-8
DOIs	https://doi.org/10.1016/j.ijmachtools.2004.11.005
Publication status	Published - Jun 2005

Funding

A portion of this research was sponsored by the Heavy Vehicle Propulsion Systems Materials Program, Office of Transportation Technologies, US Department of Energy and by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC for the US. Department of Energy under contract number DE-AC05-00OR22725.

Funders	Funder number
LLC
Office of Transportation Technologies
U.S. Department of Energy	DE-AC05-00OR22725
Office of Energy Efficiency and Renewable Energy
Oak Ridge National Laboratory
UT-Battelle

Keywords

Bulk metallic glass
Drill wear
Drilling
Drilling force and torque

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10.1016/j.ijmachtools.2004.11.005

Cite this

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title = "Thrust force, torque, and tool wear in drilling the bulk metallic glass",

abstract = "The thrust force, torque, and tool wear in drilling of Zr-based bulk metallic glass (BMG) material are investigated. Drilling the BMG at high speed generates the chip light emission, high tool temperature, and severe tool wear. At low spindle speed, the BMG work-material builds up at the major and margin cutting edges and may break the drill. A range of feasible spindle speed and feed rate for the efficient drilling of BMG without the detrimental chip light emission and cutting edge work-material build-up has been identified in this study. Under the same drilling condition, the WC-Co tool generally requires less thrust force and about the same torque than the high-speed steel tool. The progressive wear of the major and margin cutting edges for BMG drilling is examined. Severe drill wear is associated with the bright BMG chip light emission. Without chip light emission, the drill wear is visible but not severe. This study concluded that precision holes in BMG could be generated with proper selection of tooling and process parameters.",

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author = "Mustafa Bakkal and Shih, {Albert J.} and McSpadden, {Samuel B.} and Scattergood, {Ronald O.}",

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AU - Bakkal, Mustafa

AU - Shih, Albert J.

AU - McSpadden, Samuel B.

AU - Scattergood, Ronald O.

PY - 2005/6

Y1 - 2005/6

N2 - The thrust force, torque, and tool wear in drilling of Zr-based bulk metallic glass (BMG) material are investigated. Drilling the BMG at high speed generates the chip light emission, high tool temperature, and severe tool wear. At low spindle speed, the BMG work-material builds up at the major and margin cutting edges and may break the drill. A range of feasible spindle speed and feed rate for the efficient drilling of BMG without the detrimental chip light emission and cutting edge work-material build-up has been identified in this study. Under the same drilling condition, the WC-Co tool generally requires less thrust force and about the same torque than the high-speed steel tool. The progressive wear of the major and margin cutting edges for BMG drilling is examined. Severe drill wear is associated with the bright BMG chip light emission. Without chip light emission, the drill wear is visible but not severe. This study concluded that precision holes in BMG could be generated with proper selection of tooling and process parameters.

AB - The thrust force, torque, and tool wear in drilling of Zr-based bulk metallic glass (BMG) material are investigated. Drilling the BMG at high speed generates the chip light emission, high tool temperature, and severe tool wear. At low spindle speed, the BMG work-material builds up at the major and margin cutting edges and may break the drill. A range of feasible spindle speed and feed rate for the efficient drilling of BMG without the detrimental chip light emission and cutting edge work-material build-up has been identified in this study. Under the same drilling condition, the WC-Co tool generally requires less thrust force and about the same torque than the high-speed steel tool. The progressive wear of the major and margin cutting edges for BMG drilling is examined. Severe drill wear is associated with the bright BMG chip light emission. Without chip light emission, the drill wear is visible but not severe. This study concluded that precision holes in BMG could be generated with proper selection of tooling and process parameters.

KW - Bulk metallic glass

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KW - Drilling

KW - Drilling force and torque

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IS - 7-8

ER -

Thrust force, torque, and tool wear in drilling the bulk metallic glass

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Keywords

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