Study Of The Surface Integrity Of The Machined Workpiece In The 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 Authors:	Mas Ayu, Hassan, Rosdi, Daud, Siti Haryani, Tomadi
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/1228/ http://umpir.ump.edu.my/id/eprint/1228/2/2008_Full_Paper_MMC08_Mas_Ayu.pdf

id	oai:umpir.ump.edu.my:1228
recordtype	eprints
spelling	oai:umpir.ump.edu.my:12282018-01-31T06:28:26Z http://umpir.ump.edu.my/id/eprint/1228/ Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide Mas Ayu, Hassan Rosdi, Daud Siti Haryani, Tomadi 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 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1228/2/2008_Full_Paper_MMC08_Mas_Ayu.pdf Mas Ayu, Hassan and Rosdi, Daud and Siti Haryani, Tomadi (2008) Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide. In: Malaysian Metallurgical Conference – MMC 2008, 3-4 December 2008 , UKM, Bangi Selangor. . (Unpublished)
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 Rosdi, Daud Siti Haryani, Tomadi Study Of The Surface Integrity Of The Machined Workpiece In The 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	Conference or Workshop Item
author	Mas Ayu, Hassan Rosdi, Daud Siti Haryani, Tomadi
author_facet	Mas Ayu, Hassan Rosdi, Daud Siti Haryani, Tomadi
author_sort	Mas Ayu, Hassan
title	Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
title_short	Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
title_full	Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
title_fullStr	Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
title_full_unstemmed	Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
title_sort	study of the surface integrity of the machined workpiece in the wedm of tungsten carbide
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/1228/ http://umpir.ump.edu.my/id/eprint/1228/2/2008_Full_Paper_MMC08_Mas_Ayu.pdf
first_indexed	2018-09-07T00:21:41Z
last_indexed	2018-09-07T00:21:41Z
_version_	1610906024139554816

Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide

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