Experimental study on wear of cemented carbide milling cutter in the process of milling titanium alloy
Aiming at the problem that cemented carbide tools are easy to fail in the process of milling titanium alloy,resulting in low average life,a new carbide material tool with 0.5 μm WC particles and 12%Co ratio was developed through a new ratio,and the titanium alloy wet milling wear comparison experiment was carried out with two mainstream tools in the market.According to the wear morphology of the front and rear flanks of the tools,the failure forms and wear mechanisms of the three tools were analyzed.The results show that in the early stage of milling,the circumferential flank of the new tool showed a uniform wear band,and the wear was mainly bonding wear and abrasive wear,while in the later stage of milling,there were uneven wear such as cracks and chipping,and the whole wear process mainly experienced three stages:initial wear,stable wear and sharp wear.Compared with the other two tools,the new material tool has a higher average life,better collapse resistance,and is more conducive to the processing of titanium alloys.
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