Die Soldering in Aluminium Die Casting

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Two types of tests, dipping tests and dip-coating tests were carried out on small steel cylinders using pure aluminum and 380 alloy to investigate the mechanism of die soldering during aluminum die casting. Optical and scanning electron microscopy were used to study the morphology and composition of the phases formed during soldering. A soldering mechanism is postulated based on experimental observations. A soldering critical temperature is postulated at which iron begins to react with aluminum to form an aluminum-rich liquid phase and solid intermetallic compounds. When the temperature at the die surface is higher than this critical temperature, the aluminum-rich ... continued below

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Han, Q.; Kenik, E.A. & Viswanathan, S. March 15, 2000.

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Two types of tests, dipping tests and dip-coating tests were carried out on small steel cylinders using pure aluminum and 380 alloy to investigate the mechanism of die soldering during aluminum die casting. Optical and scanning electron microscopy were used to study the morphology and composition of the phases formed during soldering. A soldering mechanism is postulated based on experimental observations. A soldering critical temperature is postulated at which iron begins to react with aluminum to form an aluminum-rich liquid phase and solid intermetallic compounds. When the temperature at the die surface is higher than this critical temperature, the aluminum-rich phase is liquid and joins the die with the casting during the subsequent solidification. The paper discusses the mechanism of soldering for the case of pure aluminum and 380 alloy casting in a steel mold, the factors that promote soldering, and the strength of the bond formed when soldering occurs. conditions, an aluminum-rich soldering layer may also form over the intermetallic layer. Although a significant amount of research has been conducted on the nature of these intermetallics, little is known about the conditions under which soldering occurs.

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OSTI as DE00755660

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  • TMS 2000 Conference, No location given, 03/15/2000

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  • Report No.: ORNL/CP-106473
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 755660
  • Archival Resource Key: ark:/67531/metadc709549

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 15, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 21, 2016, 12:21 p.m.

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Han, Q.; Kenik, E.A. & Viswanathan, S. Die Soldering in Aluminium Die Casting, article, March 15, 2000; Tennessee. (digital.library.unt.edu/ark:/67531/metadc709549/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.