Surface Integrity Study In WEDM Of Tungsten Carbide

This paper presented a study on the surface integrity of the machined surface of tungsten carbide (WC-15%Co) using wire electro-discharge machining (WEDM). WEDM tests on a WC-15%Co workpiece were conducted on a Sodick WEDM 5-axes series AQ537L, with the pulse duration (ON), pulse interval (OFF), pea...

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Main Author:	Mas Ayu, Hassan
Format:	Article
Language:	English
Published:	2008
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/1254/ http://umpir.ump.edu.my/id/eprint/1254/2/2008_Journal_MAH08_Mas_Ayu.pdf

id	ump-1254
recordtype	eprints
spelling	ump-12542018-01-31T06:29:25Z http://umpir.ump.edu.my/id/eprint/1254/ Surface Integrity Study In WEDM Of Tungsten Carbide Mas Ayu, Hassan TJ Mechanical engineering and machinery This paper presented a study on the surface integrity of the machined surface of tungsten carbide (WC-15%Co) using wire electro-discharge machining (WEDM). WEDM tests on a WC-15%Co workpiece were conducted on a Sodick WEDM 5-axes series AQ537L, with the pulse duration (ON), pulse interval (OFF), peak current (IP) and servo voltage (SV) varied. The WEDMed surface roughness and thickness of recast layer were examined with a Scanning Electron Microscope XL40. The Full Factorial Design of Experiment (DOE) approach with two-level was used to formulate the experimental layout and to evaluate the effects on two machining responses consisting of surface roughness and thickness of recast layer. It is found that pulse duration has appeared to be the significant effect to both responses. It is also observed that there was almost no presence of microcracks in this study. The recast layer has distinguished microstructure from its parental material which consists of a lot of pockmarks, voids and globules of debris on its surface. Based on the observation done, the WEDM conditions have no effect on the microstructure of the bulk workpiece material. This means that damage caused by WEDM on the WEDMed surface is limited to certain depth only. Overall, the results showed that the thickness of recast layer and surface roughness of machined surface were improved when pulse duration and peak current were set at low values. 2008 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1254/2/2008_Journal_MAH08_Mas_Ayu.pdf Mas Ayu, Hassan (2008) Surface Integrity Study In WEDM Of Tungsten Carbide. Solid State Science and Technology, 16 (1). pp. 1-11. ISSN 0128-7389
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mas Ayu, Hassan Surface Integrity Study In WEDM Of Tungsten Carbide
description	This paper presented a study on the surface integrity of the machined surface of tungsten carbide (WC-15%Co) using wire electro-discharge machining (WEDM). WEDM tests on a WC-15%Co workpiece were conducted on a Sodick WEDM 5-axes series AQ537L, with the pulse duration (ON), pulse interval (OFF), peak current (IP) and servo voltage (SV) varied. The WEDMed surface roughness and thickness of recast layer were examined with a Scanning Electron Microscope XL40. The Full Factorial Design of Experiment (DOE) approach with two-level was used to formulate the experimental layout and to evaluate the effects on two machining responses consisting of surface roughness and thickness of recast layer. It is found that pulse duration has appeared to be the significant effect to both responses. It is also observed that there was almost no presence of microcracks in this study. The recast layer has distinguished microstructure from its parental material which consists of a lot of pockmarks, voids and globules of debris on its surface. Based on the observation done, the WEDM conditions have no effect on the microstructure of the bulk workpiece material. This means that damage caused by WEDM on the WEDMed surface is limited to certain depth only. Overall, the results showed that the thickness of recast layer and surface roughness of machined surface were improved when pulse duration and peak current were set at low values.
format	Article
author	Mas Ayu, Hassan
author_facet	Mas Ayu, Hassan
author_sort	Mas Ayu, Hassan
title	Surface Integrity Study In WEDM Of Tungsten Carbide
title_short	Surface Integrity Study In WEDM Of Tungsten Carbide
title_full	Surface Integrity Study In WEDM Of Tungsten Carbide
title_fullStr	Surface Integrity Study In WEDM Of Tungsten Carbide
title_full_unstemmed	Surface Integrity Study In WEDM Of Tungsten Carbide
title_sort	surface integrity study in wedm of tungsten carbide
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/1254/ http://umpir.ump.edu.my/id/eprint/1254/2/2008_Journal_MAH08_Mas_Ayu.pdf
first_indexed	2023-09-18T21:54:14Z
last_indexed	2023-09-18T21:54:14Z
_version_	1777413971657097216

Surface Integrity Study In WEDM Of Tungsten Carbide

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