焊接热源函数

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Copyright © ESI Group, 2009. All rights reserved.
Heat Sources for Welding
• And a Gaussien surface source is specially adapted for the modeling of surface treatments such as Laser hardening.
With Weldline Media
• It is necessary to define the parameters of the mathematical description of heat source such as the simulation of welding process gives results near the experimental data :
Q x, y, z Q f exp 2 2 2 af b c x2 y 2 z2 Q x, y, z Qr exp a 2 b2 c 2 r
Translation, Rotation, Helix
x2 y 2 Q x, y , z Q0 exp 2 r 0

• The user also can program his own heat source by using simplified FORTRAN.
Copyright © ESI Group, 2009. All rights reserved.
Copyright © ESI Group, 2009. Allຫໍສະໝຸດ Baidurights reserved.
– – – – Same size of molten zone MZ Same size of heat affected zone HAZ Same thermal cycles (optional) Same hardness (optional), …
• In SYSWELD, a precious help for this purpose “Heat source fitting tool” exists.
Heat Sources for Welding
• A volume heat source defined by a double ellipsoid双椭球is advised to simulate welding processes with material deposit : x2 y2 z2 MIG, TIG …
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