Most ongoing research in FSW domain uses plates made by secondary rolling operation. Whether the plates are cut in longitudinal or transverse direction of rolling affects the weld properties or not.
Dear, Rolling direction is one of the most efficient parameters to get sound weld of friction stir welding. rolling direction affect the metallurgical and mechanical properties. it is may be influence the hardness or strength and also grain size. and some specific cases corrosion behavior also influence the direction of rolling.
Hi,
I think so, because during and after rolling process, the grains shapes been changed to spherical shape. This modification are effected the material properties, namely: tensile strength, etc.
Regards,
Aali,
Mostly the rolling direction effect the material properties since there is a drastic change in the grain sizes and shapes after the rolling process. so subsequently it effects the weld properties as well.
If you cut out the tensile sample from welded sample and in parallel direction to it (weld path), the direction of welding, be it perpendicular to the rolling direction or vice versa, will literally have negligible or no effect on the properties of the weld or to be accurate on the tensile results. But if you cut out the tensile sample perpendicular to the welding path, rolling direction ''MAY'' affect the tensile results; again the properties of the welded zone is independent of rolling direction.
Dear...
Rolling direct causes differents mechanical strength in the material welded. Affectting your properties too. Make a test with your samples and have a sure whats the difference.
Surely, it affects the properties especially the micro-mechanical behavior of the TMAZ.
Dear, Rolling direction is one of the most efficient parameters to get sound weld of friction stir welding. rolling direction affect the metallurgical and mechanical properties. it is may be influence the hardness or strength and also grain size. and some specific cases corrosion behavior also influence the direction of rolling.
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