The Paton Welding Journal, 2004, №01

2004 №01 (11)

2004 №01 (02)

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The Paton Welding Journal, 2004, #1, 2-6 pages

Effect of heat of aluminium alloy melting on shape and sizes of weld pool

V.A. Karkhin¹, A.S. Iliin¹, V.V. Ploshikhin², A.A. Prikhodovsky²

¹St.-Petersburg State Polytechnik University, St.-Petersburg, Russia
²New Materials Bairout GmbH, Germany

Abstract
An algorithm is developed for solving the quasi-stationary temperature problem taking into account the heat of melting and solidification, based on the method of sources (Green function). The case of welding thin aluminium plate is used to demonstrate that the melting heat has a significant influence on the shape and dimensions of the weld pool and solid-liquidus zone. It is noted that the thermal efficiency of the process of melting ht of a plate by a linear source can be much higher than 0.4839 with allowance for the melting heat. Known simplified methods with allowance for melting heat may lead to significant errors in ht determination. A comparison of calculated and experimental shape of the weld pool is given.
Keywords: fusion welding, equation of heat conductivity, melting heat, weld pool, calculation, method of sources

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Suggested Citation

V.A. Karkhin, A.S. Iliin, V.V. Ploshikhin, A.A. Prikhodovsky (2004) Effect of heat of aluminium alloy melting on shape and sizes of weld pool. The Paton Welding J., 01, 2-6 .

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