Application of A Front Tracking Method in Gas Metal Arc Welding (GMAW) Simulation  

Oleh:

Schultz, William W. ; Guo, Xu ; Kannatey-Asibu, Elijah, [Jr.]

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 127 no. 3 (Aug. 2005), page 590-597.
Topik: simulation; application; tracking method; gas metal arc welding (GMAW); simulation

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.7 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

A numerical model is developed to simulate the short - circuiting metal transfer process during gas metal arc welding (GMAW). The energy equation and the Marangoni convection are considered for the first time in analyzing the short - circuiting time. A front - tracking free surface method explicity tracks the profile of the liquid bridge. The electromagnetic field, distribution of velocity, pressure, and temperature are calculated using the developed model. Effects of welding current, surface tension temperature coefficient, and initial drop volume on short -circuiting duration time are examined. The results show that both the electromagnetic force and Marangoni shear stress play significant roles in short - circuiting transfer welding.

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