Method for calculating shape of bead of welded part
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United States of America Patent
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-
Dec 14, 2004
Grant Date -
Jan 16, 2003
app pub date -
Jul 18, 2002
filing date -
Jan 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for calculating the shape of a bead of a welded part by solving the problem of multiple solutions when the shape causing a recess or undercut in the flange is determined by calculation. The geometry data on the object to be welded, the characteristic parameters of the object and welding environment, and the welding conditions are set. Under the welding conditions, the melting part of the object is inferred by heat conduction calculation. The coordinates are rotated about an axis parallel to the direction of the welding and/or about an axis perpendicular to the welding direction for the inferred melting part. A difference lattice is set for the coordinate-rotated melting part. The displacement of the melting part for which the difference lattice is set is calculated by a curved surface equation.
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