Improvement of Riser Efficiency Using High-Intensity Ultrasonic Treatment in A356 Alloy

• Shin Sang-Soo

  Department of Materials Science and Engineering, Pusan National University

• Kim Woo-Chun

  Research & Development Center, DR AXION Enterprise Co. Ltd.

• Kim Kyou-Hyun

  Advanced Process and Materials R&BD Group, Incheon Regional Division, Korea Institute of Industrial Technology

• Park Jeong-Wook

  Research & Development Center, DR AXION Enterprise Co. Ltd.

抄録

We have investigated the effect of ultrasonic vibration on the alloy riser thus reducing the volume and improving the microstructure of molten A356 alloy. A unique horn shape and shrinkage cavity mold was designed for this study. High power ultrasonic vibration was then introduced into the riser of the molten aluminum during solidification of the A356 alloy. As a result, the shrinkage cavities are decreased and the riser efficiency is improved. In addition, the morphology of primary α-Al phase in the casting alloy changes from dendrite to granule in nature after the ultrasonic vibration treatment. This study suggests that ultrasonic vibration can be used to reduce the riser volume in an A356 alloy casting sample.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 56 (9), 1605-1608, 2015

  公益社団法人 日本金属学会

キーワード

• gravity casting
• A356 alloy
• ultrasonic vibration
• riser
• magnetostrictive transducer

詳細情報

• CRID: 1390282679230259072
• NII論文ID: 130005094827
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2015141
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 026709881
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026709881
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/56/9/56_M2015141/_pdf
• 本文言語コード: en
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