Effect of Spindle Speed, Feedrate, Tool Geometry, and Polyester & Vinylester Blends on Surface Roughness and Surface Hardness Alteration of the Hole
<p>In this study, 2 types of polymers were mixed, namely polyester and vinylester called polyester-vinylester blend (PVB) as the test workpiece. The experiments carried out were testing the surface quality of the hole, namely surface roughness (R<sub>a</sub>), and surface hardness...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas
2023-05-01
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| Series: | Metal: Jurnal Sistem Mekanik dan Termal |
| Subjects: | |
| Online Access: | https://metal.ft.unand.ac.id/index.php/metal/article/view/247 |
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| Summary: | <p>In this study, 2 types of polymers were mixed, namely polyester and vinylester called polyester-vinylester blend (PVB) as the test workpiece. The experiments carried out were testing the surface quality of the hole, namely surface roughness (R<sub>a</sub>), and surface hardness alteration (SHA) after drilling. In this study, the effects of spindle speed (<em>n</em>) & feedrate (<em>f</em>), cutting-edge angle (<em>K<sub>r</sub></em>), and PVB composition (<em>P%V%</em>) were tested. The results showed that the factor that most influenced the surface roughness value was the feedrate with a contribution value of 39% and the PVB composition (32%) for PVB dominantly polyester. Whereas in vinylester dominant PVB, the most influential factor is the spindle speed (50%). For the measurement of surface hardness alteration that occurs, the factor that affects surface hardness alteration is the cutting-edge angle (44%) in PVB dominantly of polyester. While in vinylester dominant PVB, the influencing factor is spindle speed (44%).</p> |
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| ISSN: | 2598-1137 2597-4483 |