jeepman380 Posted February 20, 2007 Report Posted February 20, 2007 It depends on many things such as the welder, tungsten used, technique, etc. Remember, you are just providing a mechanism to preserve the press fit of the pin into the crank web. You are not attempting to forgew the two together. :thumbsup: Well you only use one type of tungsten when welding this kind of steel. If all you was trying to do was just provide a mechanism to preserve the press fit of the pin into the crank web then you might as well just tack weld the sides of the crank instead of welding it. If you don't get enough penetration then the two pieces are not gonna bond well enough and the weld will eventually just crank under stress. :thumbsup: Quote
FireHead Posted February 20, 2007 Report Posted February 20, 2007 Well you only use one type of tungsten when welding this kind of steel. If all you was trying to do was just provide a mechanism to preserve the press fit of the pin into the crank web then you might as well just tack weld the sides of the crank instead of welding it. If you don't get enough penetration then the two pieces are not gonna bond well enough and the weld will eventually just crank under stress. :thumbsup: You can use a couple different types of Tingsten for this type of welding. Pure tungsten of 2% thoriated tungsten would probably be your best bet, but there are a couple others that would work as well. I am a bit confused about what you mean about tack welding the sides of the crank. All you are trying to do is preserve the press with as a press fit in this situation is stronger than a clearance fit and a weld joint any day. Of course penetration is necessary, but it is sort of a given if you are not using filler rod and doing an undercut weld from the webs to the crank pin. In my somewhat educated opinion, an undercut stitch weld pattern is all that is necessary on the crankshafts in question. :thumbsup: Quote
BigRed350x Posted February 20, 2007 Report Posted February 20, 2007 I dunno what you are talking about, I just took a stick welder from walmart and went to town on that crank. Ha Ha Ha Ha! Quote
FireHead Posted February 20, 2007 Report Posted February 20, 2007 I dunno what you are talking about, I just took a stick welder from walmart and went to town on that crank. Ha Ha Ha Ha! Stick welder from Walmart = a bunch of batteries strung together with jumper cables and a nail for an electrode Quote
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