The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method
The presented work is aimed to deal with the influence of changes in the value of negative (relative) pressure maintained in the die cavity of pressure die casting machine on the surface quality of pressure castings. The examinations were held by means of the modified Vertacast pressure die casting...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2014-06-01
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| Series: | Archives of Foundry Engineering |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/afe.2014.14.issue-2/afe-2014-0030/afe-2014-0030.xml?format=INT |
| _version_ | 1797719367342882816 |
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| author | Łągiewka M. Konopka Z. Nadolski M. Zyska A. |
| author_facet | Łągiewka M. Konopka Z. Nadolski M. Zyska A. |
| author_sort | Łągiewka M. |
| collection | DOAJ |
| description | The presented work is aimed to deal with the influence of changes in the value of negative (relative) pressure maintained in the die cavity of pressure die casting machine on the surface quality of pressure castings. The examinations were held by means of the modified Vertacast pressure die casting machine equipped with a vacuum system. Castings were produced for the parameters selected on the basis of previous experiments, i.e. for the plunger velocity in the second stage of injection at the level of 4 m/s, the pouring temperature of the alloy equal to 640°C, and the die temperature of 150°C. The examinations were carried on for three selected values of negative gauge pressure: - 0.03, - 0.05, and - 0.07 MPa. The quality of casting was evaluated by comparing the results of the surface roughness measurements performed for randomly selected castings. The surface roughness was measured by means of Hommel Tester T1000. After a series of measurements it was found that the smoothest surface is exhibited by castings produced at negative gauge pressure value of - 0.07 MPa. |
| first_indexed | 2024-03-12T09:03:50Z |
| format | Article |
| id | doaj.art-804971ee4d8a41f8bc53d8d70ee12037 |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-12T09:03:50Z |
| publishDate | 2014-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-804971ee4d8a41f8bc53d8d70ee120372023-09-02T15:27:24ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442014-06-01142232610.2478/afe-2014-0030afe-2014-0030The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting MethodŁągiewka M.0Konopka Z.1Nadolski M.2Zyska A.3Department of Foundry, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, PolskaDepartment of Foundry, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, PolskaDepartment of Foundry, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, PolskaDepartment of Foundry, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, PolskaThe presented work is aimed to deal with the influence of changes in the value of negative (relative) pressure maintained in the die cavity of pressure die casting machine on the surface quality of pressure castings. The examinations were held by means of the modified Vertacast pressure die casting machine equipped with a vacuum system. Castings were produced for the parameters selected on the basis of previous experiments, i.e. for the plunger velocity in the second stage of injection at the level of 4 m/s, the pouring temperature of the alloy equal to 640°C, and the die temperature of 150°C. The examinations were carried on for three selected values of negative gauge pressure: - 0.03, - 0.05, and - 0.07 MPa. The quality of casting was evaluated by comparing the results of the surface roughness measurements performed for randomly selected castings. The surface roughness was measured by means of Hommel Tester T1000. After a series of measurements it was found that the smoothest surface is exhibited by castings produced at negative gauge pressure value of - 0.07 MPa.http://www.degruyter.com/view/j/afe.2014.14.issue-2/afe-2014-0030/afe-2014-0030.xml?format=INTInnovative foundry technologiesAluminium alloysVacuum assisted high pressure die castingSurface roughnessDefects in pressure die castings |
| spellingShingle | Łągiewka M. Konopka Z. Nadolski M. Zyska A. The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method Archives of Foundry Engineering Innovative foundry technologies Aluminium alloys Vacuum assisted high pressure die casting Surface roughness Defects in pressure die castings |
| title | The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method |
| title_full | The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method |
| title_fullStr | The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method |
| title_full_unstemmed | The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method |
| title_short | The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method |
| title_sort | effect of vacuum assistance on the quality of castings produced by high pressure die casting method |
| topic | Innovative foundry technologies Aluminium alloys Vacuum assisted high pressure die casting Surface roughness Defects in pressure die castings |
| url | http://www.degruyter.com/view/j/afe.2014.14.issue-2/afe-2014-0030/afe-2014-0030.xml?format=INT |
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