Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2

This paper presents the results of experimental investigations conducted on a vertical machining centre (VMC) to ascertain the effectiveness of brazed circular polycrystalline cubic boron nitride (PCBN) inserts in end milling of hardened steel AISI D2 (60-62 HRC), under room temperature and workpiec...

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Main Authors:	Amin, A. K. M. Nurul, Dolah, Shuriani, Mahmud, Marlina, Lajis, M. A.
Format:	Article
Language:	English
Published:	Elsevier 2008
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/29565/ http://irep.iium.edu.my/29565/1/2008_Effects_of_workpiece_preheating_on_surface_roughness%2C_chat.pdf

id	iium-29565
recordtype	eprints
spelling	iium-295652013-07-19T03:30:37Z http://irep.iium.edu.my/29565/ Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2 Amin, A. K. M. Nurul Dolah, Shuriani Mahmud, Marlina Lajis, M. A. TS200 Metal manufactures. Metalworking This paper presents the results of experimental investigations conducted on a vertical machining centre (VMC) to ascertain the effectiveness of brazed circular polycrystalline cubic boron nitride (PCBN) inserts in end milling of hardened steel AISI D2 (60-62 HRC), under room temperature and workpiece preheated conditions. Comparison was made in terms of intensity of chatter, chip formation instability, tool wear and metal removal capacity of the tool and surface roughness of the machine parts. It has been found that chips formed are composed of primary and secondary serrated teeth and their formative frequencies have definite relationship with the chatter frequencies. Though initial average flank wear of the tool during preheated machining is found to be slightly higher compared to that of room temperature machining, the extrapolated tool life appears to be higher in the case of preheating. The main mechanisms of tool failure are found to be superficial plastic deformation, diffusion and notching. It has been observed that feed per tooth, cutting speed, preheating and amplitude of chatter have direct bearing on the surface roughness. It has been observed that preheated machining of the material leads to surface roughness values well below 0.4 μm, such that the operations of grinding as well as polishing can be avoided at the higher cutting speeds. Elsevier 2008 Article PeerReviewed application/pdf en http://irep.iium.edu.my/29565/1/2008_Effects_of_workpiece_preheating_on_surface_roughness%2C_chat.pdf Amin, A. K. M. Nurul and Dolah, Shuriani and Mahmud, Marlina and Lajis, M. A. (2008) Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2. Journal of Materials Processing Technology, 201. pp. 466-470. ISSN 0924-0136
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS200 Metal manufactures. Metalworking
spellingShingle	TS200 Metal manufactures. Metalworking Amin, A. K. M. Nurul Dolah, Shuriani Mahmud, Marlina Lajis, M. A. Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
description	This paper presents the results of experimental investigations conducted on a vertical machining centre (VMC) to ascertain the effectiveness of brazed circular polycrystalline cubic boron nitride (PCBN) inserts in end milling of hardened steel AISI D2 (60-62 HRC), under room temperature and workpiece preheated conditions. Comparison was made in terms of intensity of chatter, chip formation instability, tool wear and metal removal capacity of the tool and surface roughness of the machine parts. It has been found that chips formed are composed of primary and secondary serrated teeth and their formative frequencies have definite relationship with the chatter frequencies. Though initial average flank wear of the tool during preheated machining is found to be slightly higher compared to that of room temperature machining, the extrapolated tool life appears to be higher in the case of preheating. The main mechanisms of tool failure are found to be superficial plastic deformation, diffusion and notching. It has been observed that feed per tooth, cutting speed, preheating and amplitude of chatter have direct bearing on the surface roughness. It has been observed that preheated machining of the material leads to surface roughness values well below 0.4 μm, such that the operations of grinding as well as polishing can be avoided at the higher cutting speeds.
format	Article
author	Amin, A. K. M. Nurul Dolah, Shuriani Mahmud, Marlina Lajis, M. A.
author_facet	Amin, A. K. M. Nurul Dolah, Shuriani Mahmud, Marlina Lajis, M. A.
author_sort	Amin, A. K. M. Nurul
title	Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
title_short	Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
title_full	Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
title_fullStr	Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
title_full_unstemmed	Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2
title_sort	effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel d2
publisher	Elsevier
publishDate	2008
url	http://irep.iium.edu.my/29565/ http://irep.iium.edu.my/29565/1/2008_Effects_of_workpiece_preheating_on_surface_roughness%2C_chat.pdf
first_indexed	2023-09-18T20:43:25Z
last_indexed	2023-09-18T20:43:25Z
_version_	1777409516859555840

Effects of workpiece preheating on surface roughness, chatter and tool performance during end milling of hardened steel D2

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