Study on the Machinability Characteristics of Ti₂AlNb Based Alloy in Turning with Coated Cemented Carbide Tools

Abstract:

As a new type of material, Ti₂AlNb based alloy has a broad application prospects in aerospace field due to its excellent properties such as low density, high specific strength at elevated temperature, excellent oxide and creep resistance. Many studies involving its material composition and structural properties have been published. However, there are relatively few literatures available on the machinability of Ti₂AlNb based alloy. In this work, the turning experiment of Ti₂AlNb based alloy was carried out with coated cemented carbide tools. The machinability of Ti₂AlNb based alloy was investigated through the cutting force, cutting temperature, tool wear and surface roughness. The result shows that the cutting force is lower and surface quality is better under condition of higher cutting velocity, lower feed rate and smaller depth of cut. The life of tool is longer when they were cutting under the high cutting velocity, low feed rate and small depth of cut. The research could provide some instructive information and basic data for the turning process parameters optimization of Ti₂AlNb based alloy.

• Periodical: Materials Science Forum (Volumes 836-837)
• Pages: 106-111
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.836-837.106
• Online since: January 2016
• Authors: Bing Bai, Hong Hua Su*, Lin Jiang He, Ling Ji Liao, Jing Gang Ren
• Keywords: Coated Cemented Carbide Tools, Machinability, Ti₂AlNb Based Alloy

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