Modeling of surface roughness during end milling of AISI H13 hardened tool steel

Hard machining, a frequently used term in today’s machine tool industries, refers to the machining of material with a hardness value over 45 HRC. The concept of hard machining was developed in 80s; however, the prevalent industrial implementation of hard part machining was adopted during the last...

Full description

Bibliographic Details
Main Authors:	Amin, A. K. M. Nurul, Hafiz, A.M. Khalid, Lajis, M. A.
Format:	Book Chapter
Language:	English
Published:	IIUM Press 2011
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/23601/ http://irep.iium.edu.my/23601/ http://irep.iium.edu.my/23601/4/chp22.pdf

id	iium-23601
recordtype	eprints
spelling	iium-236012012-09-12T04:32:13Z http://irep.iium.edu.my/23601/ Modeling of surface roughness during end milling of AISI H13 hardened tool steel Amin, A. K. M. Nurul Hafiz, A.M. Khalid Lajis, M. A. TJ Mechanical engineering and machinery Hard machining, a frequently used term in today’s machine tool industries, refers to the machining of material with a hardness value over 45 HRC. The concept of hard machining was developed in 80s; however, the prevalent industrial implementation of hard part machining was adopted during the last decade [1]. Advantages in hard machining incorporate the complete machining process with a single fixture setup, eliminating intermediate heat treatment and final grinding process while still meeting the dimensional and surface roughness specifications [2]. The widespread demand of hardened tool steel like AISI H13 requires high speed machining (HSM). Over the last decade, HSM has been used to manufacture molds/dies made from AISI H13. Many progressive works have been carried out to improve the high speed machining performance of H13. However, despite the significant importance of surface finish most of the machining researchers to date have concentrated on chip morphology, tool life and wear mechanism. In hard part machining, surface finish is a major quality criterion. With an accurate level of roughness it is possible to eliminate final grinding process, sometime even the hand polishing [3]. Considering its importance some researchers conducted their studies on surface quality during hard machining. Choudhury at el. [4] applied Taguchi method for the prediction of surface roughness during the end milling of AISI H13 tool steel and found that roughness value tends to decrease with increasing cutting speed and decreasing feed rate. El-Baradie [5] drew similar conclusion on cutting speed. He observed that increase of cutting speed maximizes productivity, at the same time, it improves surface quality. However, in all of the above cases and other works related to the surface roughness study it was found that the lowest achievable surface finish was only 0.2 μm. at high cutting speed mode. In most of the cases roughness values were sufficiently high to fall in the grinding region (above 0.2 to 0.4 μm). Moreover, material removal rate was limited for using lower radial depth of cut and feed per tooth (Rd = 0.3 mm to 0.8 mm and f = 0.10 mm/tooth). In this context, considering the influence of surface finish on mold/die for net shape manufacturing, current paper deals with the performance of PCBN and PVD-TiAlN coated carbide tool inserts in terms of surface roughness during the end milling of H13 hardened tool steel (52 HRC). In this regard, mathematical models based on the experimental results were developed in order to predict the surface finish during the end milling of H13 hardened tool steel. IIUM Press 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/23601/4/chp22.pdf Amin, A. K. M. Nurul and Hafiz, A.M. Khalid and Lajis, M. A. (2011) Modeling of surface roughness during end milling of AISI H13 hardened tool steel. In: Advanced Machining Towards Improved Machinability of Difficult-to-Cut Materials. IIUM Press, Kuala Lumpur, Malaysia, pp. 167-173. ISBN 9789674181758 http://rms.research.iium.edu.my/bookstore/default.aspx
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Amin, A. K. M. Nurul Hafiz, A.M. Khalid Lajis, M. A. Modeling of surface roughness during end milling of AISI H13 hardened tool steel
description	Hard machining, a frequently used term in today’s machine tool industries, refers to the machining of material with a hardness value over 45 HRC. The concept of hard machining was developed in 80s; however, the prevalent industrial implementation of hard part machining was adopted during the last decade [1]. Advantages in hard machining incorporate the complete machining process with a single fixture setup, eliminating intermediate heat treatment and final grinding process while still meeting the dimensional and surface roughness specifications [2]. The widespread demand of hardened tool steel like AISI H13 requires high speed machining (HSM). Over the last decade, HSM has been used to manufacture molds/dies made from AISI H13. Many progressive works have been carried out to improve the high speed machining performance of H13. However, despite the significant importance of surface finish most of the machining researchers to date have concentrated on chip morphology, tool life and wear mechanism. In hard part machining, surface finish is a major quality criterion. With an accurate level of roughness it is possible to eliminate final grinding process, sometime even the hand polishing [3]. Considering its importance some researchers conducted their studies on surface quality during hard machining. Choudhury at el. [4] applied Taguchi method for the prediction of surface roughness during the end milling of AISI H13 tool steel and found that roughness value tends to decrease with increasing cutting speed and decreasing feed rate. El-Baradie [5] drew similar conclusion on cutting speed. He observed that increase of cutting speed maximizes productivity, at the same time, it improves surface quality. However, in all of the above cases and other works related to the surface roughness study it was found that the lowest achievable surface finish was only 0.2 μm. at high cutting speed mode. In most of the cases roughness values were sufficiently high to fall in the grinding region (above 0.2 to 0.4 μm). Moreover, material removal rate was limited for using lower radial depth of cut and feed per tooth (Rd = 0.3 mm to 0.8 mm and f = 0.10 mm/tooth). In this context, considering the influence of surface finish on mold/die for net shape manufacturing, current paper deals with the performance of PCBN and PVD-TiAlN coated carbide tool inserts in terms of surface roughness during the end milling of H13 hardened tool steel (52 HRC). In this regard, mathematical models based on the experimental results were developed in order to predict the surface finish during the end milling of H13 hardened tool steel.
format	Book Chapter
author	Amin, A. K. M. Nurul Hafiz, A.M. Khalid Lajis, M. A.
author_facet	Amin, A. K. M. Nurul Hafiz, A.M. Khalid Lajis, M. A.
author_sort	Amin, A. K. M. Nurul
title	Modeling of surface roughness during end milling of AISI H13 hardened tool steel
title_short	Modeling of surface roughness during end milling of AISI H13 hardened tool steel
title_full	Modeling of surface roughness during end milling of AISI H13 hardened tool steel
title_fullStr	Modeling of surface roughness during end milling of AISI H13 hardened tool steel
title_full_unstemmed	Modeling of surface roughness during end milling of AISI H13 hardened tool steel
title_sort	modeling of surface roughness during end milling of aisi h13 hardened tool steel
publisher	IIUM Press
publishDate	2011
url	http://irep.iium.edu.my/23601/ http://irep.iium.edu.my/23601/ http://irep.iium.edu.my/23601/4/chp22.pdf
first_indexed	2023-09-18T20:35:39Z
last_indexed	2023-09-18T20:35:39Z
_version_	1777409028260888576

Modeling of surface roughness during end milling of AISI H13 hardened tool steel

Similar Items