Turning Machinability of Short Alumina Fiber Reinforced Aluminum Alloy Composite Using Carbide Tool

• Asano Kazunori

  Department of Mechanical Engineering, Faculty of Science and Engineering, Kinki University

抄録

The possibility of turning fiber-reinforced aluminum alloy composites using a carbide tool was examined. Two types of short alumina fibers, which have the same fiber size, but a different chemical composition and hardness, were used as the reinforcements. The composites were fabricated by squeeze casting. Optical microscopy revealed that the fibers were randomly arranged in the alloy matrix. Fiber reinforcement decreased the cutting force and feed force of the aluminum alloy. The lower the hardness of the fiber in the composite, the lower the cutting force and feed force of the composite. The roughness of the machined surface was significantly decreased by the fiber reinforcement under every cutting condition. Observation of the chip formed on the machined surface indicated that the decrease in the surface roughness by the reinforcement was due to the suppression of the built-up-edge formation. Roughness values of the machined surface of the composite were similar to those when a diamond tool was used. The decrease in the hardness of the fibers in the composite had a significant effect on providing the long tool life.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 56 (7), 1120-1126, 2015

  公益社団法人 日本金属学会

キーワード

• aluminum matrix composite
• alumina fiber
• hardness
• cutting resistance
• machined surface
• tool wear

詳細情報

• CRID: 1390282679230592128
• NII論文ID: 130005083538
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2015013
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 026564908
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026564908
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/56/7/56_M2015013/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
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