A study on abrasive water jet machining of aluminum with garnet abrasives
In this study the effect of some cutting variables on the quality of the surface pnxiuced during abrasive water jet machining of aluminum has been investigated. The type of abrasive used was gamet of mesh size 80. The machining was done on the abrasive water jet machine WJ4080. The cutting variabl...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asian Network for Scientific Information
2005
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/1/1650-1654.pdf |
| id |
iium-7861 |
|---|---|
| recordtype |
eprints |
| spelling |
iium-78612013-07-18T07:21:03Z http://irep.iium.edu.my/7861/ A study on abrasive water jet machining of aluminum with garnet abrasives Khan, Ahsan Ali Munajat, Noraziaty Tajudin, Harnisah TS200 Metal manufactures. Metalworking In this study the effect of some cutting variables on the quality of the surface pnxiuced during abrasive water jet machining of aluminum has been investigated. The type of abrasive used was gamet of mesh size 80. The machining was done on the abrasive water jet machine WJ4080. The cutting variables were stand-off distance of the nozzle from the work surface. work feed rate and jet pressure. The evaluating criteria of the surface produced were width of cut, taper of the cut slot and work surface roughness. It was found experimentally that in order to minimize the width of cut; the nozzle should be placed close to the work surface. Increase in jet pressure results in widening of the cut slot both at the top and the at exit of the jet from the work. However. the width of cut at the bottom (exit) was always found to be larger than that at the top (at a stand-off distance of 3 mm and the work feed rate of 15 mm min-I). It was found that the taper of cut gradually reduces with increase in stand-off distance and was close to zero at the stand-off distance of 4 nun (at ajetpressure of 30 ksi and a work feed rate of 15 mm min-I). The feed rate of the work should be kept within 40 rum min- I (at the jet pressure of 30 h i and the stand-off distance of3 mm). because a feed rate beyond 40 mm min-I results in sharp increase in taper angle. The jet pressure does not show significant influence on the taper angle within the range of work feed and the stand-off distance considered. Both stand-off distance and the work feed rate show strong influence on the roughness of the machined surface. It was concluded that stand-off distance should be kept within 3 mm (at aiet pressure oDD ksi and a work feed rate ofl5 mm min-') and the work feed rate should be kept within 30 rum min-I (at ajetpressure of 30 hi and a stand-off distance of 3 nun) in order to have a good surface finish, since beyond those values of the parametern the roughness of the machined surface rises sharply. Increase in jet pressure shows positive effect in tenus of smoothness of the machined surface. With increase in jet pressure, the surface roughness decreases (at a stand-off distance of3mm and work feed of 15 mm min-I). This is due to fragmentation of the abrasive particles into smaller sizes at a higher pressure and due to the fact that smaller particles produce smoother surface. It was also found that within the jet pressure considered, the work surface is smoother near the top surface and gradually it becomes rougher at higher depths. Asian Network for Scientific Information 2005 Article PeerReviewed application/pdf en http://irep.iium.edu.my/7861/1/1650-1654.pdf Khan, Ahsan Ali and Munajat, Noraziaty and Tajudin, Harnisah (2005) A study on abrasive water jet machining of aluminum with garnet abrasives. Journal of Applied Sciences, 5 (9). pp. 1650-1654. ISSN 1812-5654 http://scialert.net/abstract/?doi=jas.2005.1650.1654 10.3923/jas.2005.1650.1654 |
| 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 Khan, Ahsan Ali Munajat, Noraziaty Tajudin, Harnisah A study on abrasive water jet machining of aluminum with garnet abrasives |
| description |
In this study the effect of some cutting variables on the quality of the surface pnxiuced during
abrasive water jet machining of aluminum has been investigated. The type of abrasive used was gamet
of mesh size 80. The machining was done on the abrasive water jet machine WJ4080. The cutting variables were
stand-off distance of the nozzle from the work surface. work feed rate and jet pressure. The evaluating criteria
of the surface produced were width of cut, taper of the cut slot and work surface roughness. It was found
experimentally that in order to minimize the width of cut; the nozzle should be placed close to the work surface.
Increase in jet pressure results in widening of the cut slot both at the top and the at exit of the jet
from the work. However. the width of cut at the bottom (exit) was always found to be larger than that
at the top (at a stand-off distance of 3 mm and the work feed rate of 15 mm min-I). It was found that the taper
of cut gradually reduces with increase in stand-off distance and was close to zero at the stand-off distance of
4 nun (at ajetpressure of 30 ksi and a work feed rate of 15 mm min-I). The feed rate of the work should be kept
within 40 rum min- I (at the jet pressure of 30 h i and the stand-off distance of3 mm). because a feed rate beyond
40 mm min-I results in sharp increase in taper angle. The jet pressure does not show significant influence on
the taper angle within the range of work feed and the stand-off distance considered. Both stand-off distance
and the work feed rate show strong influence on the roughness of the machined surface. It was concluded that
stand-off distance should be kept within 3 mm (at aiet pressure oDD ksi and a work feed rate ofl5 mm min-')
and the work feed rate should be kept within 30 rum min-I (at ajetpressure of 30 hi and a stand-off distance
of 3 nun) in order to have a good surface finish, since beyond those values of the parametern the roughness
of the machined surface rises sharply. Increase in jet pressure shows positive effect in tenus of smoothness
of the machined surface. With increase in jet pressure, the surface roughness decreases (at a stand-off distance
of3mm and work feed of 15 mm min-I). This is due to fragmentation of the abrasive particles into smaller sizes
at a higher pressure and due to the fact that smaller particles produce smoother surface. It was also found that
within the jet pressure considered, the work surface is smoother near the top surface and gradually it becomes
rougher at higher depths. |
| format |
Article |
| author |
Khan, Ahsan Ali Munajat, Noraziaty Tajudin, Harnisah |
| author_facet |
Khan, Ahsan Ali Munajat, Noraziaty Tajudin, Harnisah |
| author_sort |
Khan, Ahsan Ali |
| title |
A study on abrasive water jet machining of aluminum with garnet abrasives |
| title_short |
A study on abrasive water jet machining of aluminum with garnet abrasives |
| title_full |
A study on abrasive water jet machining of aluminum with garnet abrasives |
| title_fullStr |
A study on abrasive water jet machining of aluminum with garnet abrasives |
| title_full_unstemmed |
A study on abrasive water jet machining of aluminum with garnet abrasives |
| title_sort |
study on abrasive water jet machining of aluminum with garnet abrasives |
| publisher |
Asian Network for Scientific Information |
| publishDate |
2005 |
| url |
http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/ http://irep.iium.edu.my/7861/1/1650-1654.pdf |
| first_indexed |
2023-09-18T20:17:24Z |
| last_indexed |
2023-09-18T20:17:24Z |
| _version_ |
1777407879755595776 |