Talk:Friction stir processing

"Negatives" section removed
I just removed the paragraph entitled "negatives" since all the claims are completely unreferenced and oppose practically all the properties explained in the FSP wikipedia article as well as in the stir friction welding article. The removed paragraph mentioned "Friction stir processing takes a toll on the metal. Due to the mixture with other materials, the product as a whole suffers a great loss in toughness and ductility. Due to this loss FSP has limited applications in the mechanical fields in which it is currently being used in(aerospace, automobile, etc.)" this only concerns the flaws inherent to MMC (metal matrix composites). There are no "other materials" mixed in with a purely metallic alloy being refined via FSP. Also, higher fatigue and crack resistance are not a "toll on the metal", nor is loss of ductility a negative aspect, in fact FSP refined alloys gain superplasticity (compared to the former non FSP treated alloy) and this process is used for the high end spring industry, as the alloys gain also homogeneity, higher UTS, higher elongation at break percentage and so on. There are no perfect processes and surely there are negative features to FSP somehow, but they have to be backed up by refs. — Preceding unsigned comment added by 82.240.163.245 (talk) 00:29, 2 July 2015 (UTC)