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Erschienen in:

2021 | OriginalPaper | Buchkapitel

Comparative Study of Ball Nose and Flat End Milling on A356 Alloy/SiC_p Metal Matrix Composite

verfasst von : K. Jayakumar

Erschienen in: Trends in Manufacturing and Engineering Management

Verlag: Springer Singapore

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Abstract

The end milling process is mainly used to quickly remove large amounts of material during heavier machining operations. It is most suitable for making slots, profiles and plunge cutting. The ball nose end milling is used to produce complex 3D sculptured surfaces for making moulds and dies. But, a variation of cutting force and surface roughness in both end milling processes is not well understood due to the constant change in cutting tool–workpiece engagement during these milling processes.

Aluminium alloy–SiC particle-reinforced metal matrix composites (MMCs) are used in many industries in different shapes through different machining processes. Therefore, the present study focuses on the comparative performance study of ball end and flat end milling on A356/SiC MMC.
Composite was prepared from A356 alloy powders (avg. size-50 µm) and SiC powders (avg. size-1 µm). MMC with 90 vol.% A356 alloy powder and 10 vol.% SiC powders were synthesized using vacuum hot pressing (VHP) process at 600 °C temperature with 25 MPa pressure. VHP is mainly used to achieve high densification with uniform distribution of reinforcement.
Both ball and flat end mill machining experiments were conducted as per Taguchi L₉ array. Experiments were carried out by varying cutting speed (100, 150 and 200 m/min), feed (0.1, 0.2 and 0.3 mm/rev) and depth of cut (0.4, 0.7 and 1 mm) for both machining processes. From the experimental results, it is observed that the flat end mill gave more material removal rate (MRR) in cm³/min with low surface roughness (Ra) value than ball nose milling.

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Titel: Comparative Study of Ball Nose and Flat End Milling on A356 Alloy/SiCp Metal Matrix Composite
verfasst von: K. Jayakumar
Verlag: Springer Singapore
Buch: Trends in Manufacturing and Engineering Management
Print ISBN: 978-981-15-4744-7

Electronic ISBN: 978-981-15-4745-4

Copyright-Jahr: 2021
DOI: https://doi.org/10.1007/978-981-15-4745-4_43

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