Posted by bjb in Tx from Ne on November 23, 2010 at 14:08:03 from (141.197.12.183):
In Reply to: Aluminum Welding! posted by Murray Hebblethwaite on November 23, 2010 at 13:51:23:
From a fracture mechanics standpoint, I would go grind and polish all the welds to minimize the crack size. Aluminum usually has very poor characteristics normally when it comes to cyclic fatigue (ie going down the road) and some of those welds look like they could start cracking quickly. I would make sure you inspect ALL the welds very carefully before and after each use. I would especially be worried about the quality of those welds on the tongue as the trailer flexes going down the road.
bjb- EIT in structural engineering MS UT at Austin BS UN at Omaha
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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