Ultrasonic assisted creep feed grinding of gamma titanium aluminide using conventional and superabrasive wheels

Debajyoti Bhaduri; Sein Soo; David Aspinwall; Donka Novovic; Stefan Bohr; Peter Harden; John A. Webster

doi:10.1016/j.cirp.2017.04.085

Ultrasonic assisted creep feed grinding of gamma titanium aluminide using conventional and superabrasive wheels

Debajyoti Bhaduri, Sein Soo, David Aspinwall, Donka Novovic, Stefan Bohr, Peter Harden, John A. Webster

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Abstract

The paper details experimental work on ultrasonic assisted creep feed grinding (UACFG) of γ-TiAl intermetallic alloy: Ti–45Al–2Mn–2Nb + 0.8 vol.%TiB2XD (wt%), using conventional SiC and electroplated diamond wheels. The majority of forces recorded were lower when using vibration assistance compared to conventional CFG by up to ∼35%, while grinding-ratios for the superabrasive wheel were substantially higher by a factor of 2–7. A reduction in workpiece surface roughness by up to ∼10% together with fewer defects and marginally increased subsurface microhardness by a maximum of ∼8%, was obtained when employing ultrasonic assistance. With uprated process parameters however, the effects of UACFG were less apparent.

Original language	English
Pages (from-to)	341-344
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	66
Issue number	1
Early online date	24 Apr 2017
DOIs	https://doi.org/10.1016/j.cirp.2017.04.085
Publication status	Published - 7 Jul 2017

Keywords

Titanium
vibration
surface integrity

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title = "Ultrasonic assisted creep feed grinding of gamma titanium aluminide using conventional and superabrasive wheels",

abstract = "The paper details experimental work on ultrasonic assisted creep feed grinding (UACFG) of γ-TiAl intermetallic alloy: Ti–45Al–2Mn–2Nb + 0.8 vol.%TiB2XD (wt%), using conventional SiC and electroplated diamond wheels. The majority of forces recorded were lower when using vibration assistance compared to conventional CFG by up to ∼35%, while grinding-ratios for the superabrasive wheel were substantially higher by a factor of 2–7. A reduction in workpiece surface roughness by up to ∼10% together with fewer defects and marginally increased subsurface microhardness by a maximum of ∼8%, was obtained when employing ultrasonic assistance. With uprated process parameters however, the effects of UACFG were less apparent.",

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AU - Bhaduri, Debajyoti

AU - Soo, Sein

AU - Aspinwall, David

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AU - Bohr, Stefan

AU - Harden, Peter

AU - Webster, John A.

PY - 2017/7/7

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N2 - The paper details experimental work on ultrasonic assisted creep feed grinding (UACFG) of γ-TiAl intermetallic alloy: Ti–45Al–2Mn–2Nb + 0.8 vol.%TiB2XD (wt%), using conventional SiC and electroplated diamond wheels. The majority of forces recorded were lower when using vibration assistance compared to conventional CFG by up to ∼35%, while grinding-ratios for the superabrasive wheel were substantially higher by a factor of 2–7. A reduction in workpiece surface roughness by up to ∼10% together with fewer defects and marginally increased subsurface microhardness by a maximum of ∼8%, was obtained when employing ultrasonic assistance. With uprated process parameters however, the effects of UACFG were less apparent.

AB - The paper details experimental work on ultrasonic assisted creep feed grinding (UACFG) of γ-TiAl intermetallic alloy: Ti–45Al–2Mn–2Nb + 0.8 vol.%TiB2XD (wt%), using conventional SiC and electroplated diamond wheels. The majority of forces recorded were lower when using vibration assistance compared to conventional CFG by up to ∼35%, while grinding-ratios for the superabrasive wheel were substantially higher by a factor of 2–7. A reduction in workpiece surface roughness by up to ∼10% together with fewer defects and marginally increased subsurface microhardness by a maximum of ∼8%, was obtained when employing ultrasonic assistance. With uprated process parameters however, the effects of UACFG were less apparent.

KW - Titanium

KW - vibration

KW - surface integrity

U2 - 10.1016/j.cirp.2017.04.085

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M3 - Article

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Ultrasonic assisted creep feed grinding of gamma titanium aluminide using conventional and superabrasive wheels

Abstract

Keywords

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