Microstructure and material analysis of worn WC-Co ball-end mills
by Hsin-Yu Kuo, Kevin Meyer, Roger Lindle, Howard Weaver, Jun Ni
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 2, No. 4, 2009

Abstract: The objective of this study is to examine the relationship between microstructure and material content of used WC-Co ball-end mills. Samples were cut at key locations from three tools tested at identical cutting conditions. SEM was used for observation of the microstructure. Microprobe Techniques, EDX and ICP were used to determine the chemical compositions. The results showed that the microstructure is closely related to the cobalt content. Cobalt losses resulting from the machining process and microstructure defects resulting from the manufacturing stage were evident in worse performing tools. Differing grain-growth inhibitor contents might have led to additional performance differences.

Online publication date: Wed, 15-Jul-2009

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