Experimental Study on Performance of CBN-Coated, CBN-Uncoated and PCD Tools in Turning Al 2124 SiC (45%wt) PMMC

Muguthu Joseph Njuguna; D. Gao

doi:10.4028/www.scientific.net/KEM.567.27

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 567Experimental Study on Performance of CBN-Coated,...

Experimental Study on Performance of CBN-Coated, CBN-Uncoated and PCD Tools in Turning Al 2124 SiC (45%wt) PMMC

Abstract:

The machining of PMMCs is very difficult due to the highly abrasive and intermittent nature of the reinforcement. It is therefore necessary to choose tool material wisely. The focus of this paper was to assess performance of CBN-uncoated, CBN-coated and PCD tools with respect to tool wear, wear mechanism and cutting force while turning of Al 2124 SiC (45%wt) Particulate Metal Matrix Composite. Experimental results reveal that abrasion and chipping presented the most prevalent mode of wear among the CBN-uncoated, CBN-coated and PCD tools. Flank and crater wear were observed in all tools with flank wear being more prevalent in CBN-coated and CBN-uncoated tools. Wear among PCD tool was low as compared to CBN-uncoated CBN-coated. PCD tool is more suitable for cutting Al 2124 SiC(45%wt) PMMC.

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Periodical:

Key Engineering Materials (Volume 567)

Pages:

27-31

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.567.27

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Online since:

July 2013

Authors:

Muguthu Joseph Njuguna, D. Gao

Keywords:

Al 2124 SiC(45%wt) PMMC, Cutting Force, Tool Wear, Wear Mechanism

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