2 piece EM welding, skimming, and coating
VWAudiPorscheNut at aol.com
VWAudiPorscheNut at aol.com
Mon Aug 21 18:03:17 EDT 2000
In a message dated 8/21/00 1:32:55 PM Pacific Daylight Time, jurg at pp.sbbs.se
writes:
<< Anyone that has seen a welded part being normalized understands why welded
manifolds tend to crack...
Jörgen Karlsson
Gothenburg, Sweden
>>
Yes, I understand. I am a certified TIG/MIG operator, and I myself have
welded cast iron, without incident, using the procedures you described. One
thing I like to do, is after finishing the bead, I set the oven to around 450
degrees, and place the part in it, every 15 mins, I lower the oven temp by 50
degrees, until it gets turned off, this allows the metal to cool SLOWLY,
allowing proper heat-treating.... As Jorgen stated, welded cast will be as
good or better than original, if done properly. Often, people that are
uniformed will spread rumours, based on here-say. Heck, its even possible to
weld steel to aluminum, with the right rod! Happy Audi-ing.
Jay
1977 924
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