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bbred320

手工焊特点：      it is a good choice when not to much weld metal has to be deposited or when the weld location is difficult to access.

MIG/MAG焊接特点：These are idle methods when a lot of weld material has to be deposited or when the process can be automated. To minimise the number of weld material layers,tube rod can be used ,such as ESAB 15.66. This MIG/MAG methods are also recommended for welding thin components . A good choice of weld material being a homogeneous wire such as Ni -rod 44.

Strength: if the welding is carried out properly, considering a- measure ,cracks, and coefficient of fullness , the following can be used:
Bending strength  Sb = 250MPa
Shear Strength   Sj = 400MPa


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jywm2008

不难啊，自己找本手册，看个大概应该不成问题啊