Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations

An attempt has been made to investigate the chatter formation during two machining operations namely, turning and thread cutting on a non-wavy surface of plain carbon steel with a view to observing the formative mechanisms of chatter. Investigations have been conducted on the chips and common types...

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Main Authors:	Anayet Ullah Patwari, Mohammed, Amin, A. K. M. Nurul, Faris, Waleed Fekry, Ishtiyaq, M. H.
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2010
Subjects:	TS Manufactures
Online Access:	http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/1/AMR.83-86.637.pdf

id	iium-17274
recordtype	eprints
spelling	iium-172742012-01-31T03:06:23Z http://irep.iium.edu.my/17274/ Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations Anayet Ullah Patwari, Mohammed Amin, A. K. M. Nurul Faris, Waleed Fekry Ishtiyaq, M. H. TS Manufactures An attempt has been made to investigate the chatter formation during two machining operations namely, turning and thread cutting on a non-wavy surface of plain carbon steel with a view to observing the formative mechanisms of chatter. Investigations have been conducted on the chips and common types of discreteness in the form of serrated/saw teeth have been identified. Mechanisms of formation of these teeth have been studied and the frequencies of their formation have been determined at different cutting speeds. The different modes of the vibrating components have been extracted by modal analysis and the vibration responses during cutting conditions have also been recorded using an online data acquisition system. All the experiment were conducted on a no wavy surface and thread cutting was conducted on nascent surface, the existence of chatter observed during the experiments prove that the regenerative effect from the waviness of the previous pass, as postulated by the ‘Regenerative Chatter Theory’ is not correct in explaining the primary cause of chatter during metal cutting. The analysis of amplitude of chatter during machining indicates that noticeable chatter appears in the system when the chip serration frequency is equal to or integer multiple of the prominent natural frequency of the system components. Trans Tech Publications, Switzerland 2010-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/17274/1/AMR.83-86.637.pdf Anayet Ullah Patwari, Mohammed and Amin, A. K. M. Nurul and Faris, Waleed Fekry and Ishtiyaq, M. H. (2010) Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations. Advanced Materials Research, 83-86. pp. 637-645. ISSN 1022-6680 http://dx.doi.org/10.4028/www.scientific.net/AMR.83-86.637 doi:10.4028/www.scientific.net/AMR.83-86.637
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS Manufactures
spellingShingle	TS Manufactures Anayet Ullah Patwari, Mohammed Amin, A. K. M. Nurul Faris, Waleed Fekry Ishtiyaq, M. H. Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
description	An attempt has been made to investigate the chatter formation during two machining operations namely, turning and thread cutting on a non-wavy surface of plain carbon steel with a view to observing the formative mechanisms of chatter. Investigations have been conducted on the chips and common types of discreteness in the form of serrated/saw teeth have been identified. Mechanisms of formation of these teeth have been studied and the frequencies of their formation have been determined at different cutting speeds. The different modes of the vibrating components have been extracted by modal analysis and the vibration responses during cutting conditions have also been recorded using an online data acquisition system. All the experiment were conducted on a no wavy surface and thread cutting was conducted on nascent surface, the existence of chatter observed during the experiments prove that the regenerative effect from the waviness of the previous pass, as postulated by the ‘Regenerative Chatter Theory’ is not correct in explaining the primary cause of chatter during metal cutting. The analysis of amplitude of chatter during machining indicates that noticeable chatter appears in the system when the chip serration frequency is equal to or integer multiple of the prominent natural frequency of the system components.
format	Article
author	Anayet Ullah Patwari, Mohammed Amin, A. K. M. Nurul Faris, Waleed Fekry Ishtiyaq, M. H.
author_facet	Anayet Ullah Patwari, Mohammed Amin, A. K. M. Nurul Faris, Waleed Fekry Ishtiyaq, M. H.
author_sort	Anayet Ullah Patwari, Mohammed
title	Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
title_short	Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
title_full	Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
title_fullStr	Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
title_full_unstemmed	Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
title_sort	investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations
publisher	Trans Tech Publications, Switzerland
publishDate	2010
url	http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/ http://irep.iium.edu.my/17274/1/AMR.83-86.637.pdf
first_indexed	2023-09-18T20:26:06Z
last_indexed	2023-09-18T20:26:06Z
_version_	1777408426407624704

Investigations of formation of chatter in a non-wavy surface during thread cutting and turning operations

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