Molten aluminum equilibrium membrane formed during controlled atmosphere brazing

Dušan P. Sekulić

doi:10.1016/S0020-7225(00)00022-7

Molten aluminum equilibrium membrane formed during controlled atmosphere brazing

Dušan P. Sekulić

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Formation of a solidified joint between metallic and/or non-metallic materials is a critical phase of a manufacturing process called brazing. This paper provides an insight into an important aspect of this complex joint formation process for a system of aluminum alloys AA4343-AA3003 plus KF-AlF₃ as a flux. More specifically, a proof of the validity of the following hypothesis is given: the topology of the solidified brazed aluminum alloy joint can efficiently be described by an equilibrium membrane of the liquid alloy at the onset of solidification. A controlled atmosphere aluminum brazing process was considered. An experimental procedure is performed with ultra-pure nitrogen. Numerical results, based on a finite element discretization of a 2-D membrane profile, were obtained utilizing the minimum potential energy principle. An excellent agreement between theoretical predictions and experimental data unequivocally proves the validity of the introduced hypothesis.

Original language	English
Pages (from-to)	229-241
Number of pages	13
Journal	International Journal of Engineering Science
Volume	39
Issue number	2
DOIs	https://doi.org/10.1016/S0020-7225(00)00022-7
State	Published - Jan 2001

Bibliographical note

Funding Information:
Discussions with Prof. N. Nigro of Marquette University, Milwaukee, Wisconsin, are gratefully acknowledged. The support is provided by the National Science Foundation (NSF Grant DMI-9908319, monitored by Dr. Delcie Durham) and the Center for Robotics and Manufacturing Systems, College of Engineering, University of Kentucky, Lexington.

Funding

Discussions with Prof. N. Nigro of Marquette University, Milwaukee, Wisconsin, are gratefully acknowledged. The support is provided by the National Science Foundation (NSF Grant DMI-9908319, monitored by Dr. Delcie Durham) and the Center for Robotics and Manufacturing Systems, College of Engineering, University of Kentucky, Lexington.

Funders	Funder number
Center for Robotics and Manufacturing Systems
National Science Foundation (NSF)	DMI-9908319

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
General Engineering
Mechanical Engineering

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10.1016/S0020-7225(00)00022-7

Cite this

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title = "Molten aluminum equilibrium membrane formed during controlled atmosphere brazing",

abstract = "Formation of a solidified joint between metallic and/or non-metallic materials is a critical phase of a manufacturing process called brazing. This paper provides an insight into an important aspect of this complex joint formation process for a system of aluminum alloys AA4343-AA3003 plus KF-AlF3 as a flux. More specifically, a proof of the validity of the following hypothesis is given: the topology of the solidified brazed aluminum alloy joint can efficiently be described by an equilibrium membrane of the liquid alloy at the onset of solidification. A controlled atmosphere aluminum brazing process was considered. An experimental procedure is performed with ultra-pure nitrogen. Numerical results, based on a finite element discretization of a 2-D membrane profile, were obtained utilizing the minimum potential energy principle. An excellent agreement between theoretical predictions and experimental data unequivocally proves the validity of the introduced hypothesis.",

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note = "Funding Information: Discussions with Prof. N. Nigro of Marquette University, Milwaukee, Wisconsin, are gratefully acknowledged. The support is provided by the National Science Foundation (NSF Grant DMI-9908319, monitored by Dr. Delcie Durham) and the Center for Robotics and Manufacturing Systems, College of Engineering, University of Kentucky, Lexington. ",

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N2 - Formation of a solidified joint between metallic and/or non-metallic materials is a critical phase of a manufacturing process called brazing. This paper provides an insight into an important aspect of this complex joint formation process for a system of aluminum alloys AA4343-AA3003 plus KF-AlF3 as a flux. More specifically, a proof of the validity of the following hypothesis is given: the topology of the solidified brazed aluminum alloy joint can efficiently be described by an equilibrium membrane of the liquid alloy at the onset of solidification. A controlled atmosphere aluminum brazing process was considered. An experimental procedure is performed with ultra-pure nitrogen. Numerical results, based on a finite element discretization of a 2-D membrane profile, were obtained utilizing the minimum potential energy principle. An excellent agreement between theoretical predictions and experimental data unequivocally proves the validity of the introduced hypothesis.

AB - Formation of a solidified joint between metallic and/or non-metallic materials is a critical phase of a manufacturing process called brazing. This paper provides an insight into an important aspect of this complex joint formation process for a system of aluminum alloys AA4343-AA3003 plus KF-AlF3 as a flux. More specifically, a proof of the validity of the following hypothesis is given: the topology of the solidified brazed aluminum alloy joint can efficiently be described by an equilibrium membrane of the liquid alloy at the onset of solidification. A controlled atmosphere aluminum brazing process was considered. An experimental procedure is performed with ultra-pure nitrogen. Numerical results, based on a finite element discretization of a 2-D membrane profile, were obtained utilizing the minimum potential energy principle. An excellent agreement between theoretical predictions and experimental data unequivocally proves the validity of the introduced hypothesis.

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Molten aluminum equilibrium membrane formed during controlled atmosphere brazing

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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