Effects of a quantity of alloy carbon and metallic binder phases of Ti(C,N)-based cermets containing a fixed quantity of WC on milling performance

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  • WC含有Ti(C,N)基サーメットの合金炭素量及び結合金属相量がフライス切削特性に及ぼす影響
  • WC含有Ti(C,N)基サーメットの合金炭素量および結合金属相量がフライス切削特性に及ぼす影響
  • WC ガンユウ Ti(C,N)キ サーメット ノ ゴウキン タンソリョウ オヨビ ケツゴウ キンゾクソウリョウ ガ フライス セッサク トクセイ ニ オヨボス エイキョウ

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Abstract

Ti(C,N)-based WC containing polygenic cermets possessing both wear resistance and toughness, which make it possible to gain fine finish surfaces have been used in multiple ways in the milling process of SKD11 steel. However, thermal cracks form at the tip of the tool blade in the milling process under conditions where a severe intermittent load is repeated, often reducing the life of the tool. It is necessary to extend the tool life. In this study, we investigated the effects of the amount of alloy carbon and the metallic binder phase in the cermet when SKD11 materials were intermittently processed using a WC containing Ti(C,N)-based cermet tool on milling cutting performance. The results indicated that the WC containing Ti(C,N)-based cermet showed the longest lifespan of defect resistance with lower carbon range of the-two phase region and 10% metallic binder phase.

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