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...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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2008
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| Online Access: | http://umpir.ump.edu.my/id/eprint/1228/2/2008_Full_Paper_MMC08_Mas_Ayu.pdf |
| _version_ | 1796989381143166976 |
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| author | Mas Ayu, Hassan Rosdi, Daud Siti Haryani, Tomadi |
| author_facet | Mas Ayu, Hassan Rosdi, Daud Siti Haryani, Tomadi |
| author_sort | Mas Ayu, Hassan |
| collection | UMP |
| 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.
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| first_indexed | 2024-03-06T11:36:16Z |
| format | Conference or Workshop Item |
| id | UMPir1228 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:36:16Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | UMPir12282018-01-31T06:28:26Z 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) |
| 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 |
| title | 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
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| title_fullStr | Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
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| title_full_unstemmed | Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
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| title_short | Study Of The Surface Integrity Of The Machined Workpiece In The Wedm Of Tungsten Carbide
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| title_sort | study of the surface integrity of the machined workpiece in the wedm of tungsten carbide |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/1228/2/2008_Full_Paper_MMC08_Mas_Ayu.pdf |
| work_keys_str_mv | AT masayuhassan studyofthesurfaceintegrityofthemachinedworkpieceinthewedmoftungstencarbide AT rosdidaud studyofthesurfaceintegrityofthemachinedworkpieceinthewedmoftungstencarbide AT sitiharyanitomadi studyofthesurfaceintegrityofthemachinedworkpieceinthewedmoftungstencarbide |