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Re: Brazing?
Welding is when you fuse parts together by melting them.
Brazing uses a different material to join parts. It is also known as "Hard Soldering", while the lead-tin based solder (like that used for electronics) is called "Soft solder". Brazing rods for steel are often made of brass.
Brazing is a lot stronger than soft solder, but far weaker than welding. Aluminum brazing is very challenging to do well, while steel is very easy for a beginner to master. Steel can be brazed with a MAPP or Acetlyene torch, but propane is not hot enough. In school we had a natural gas torch that added compressed air to make the flame very hot, and used that for brazing.
There are adhesives that exceed the strength of brazing in aluminum.
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We have donut eating contests to see who has the best legs. We paint our pigs. We argue about which time zone we are in. About 400,000 of us gather together to watch cars go around in a circle. We also build robots.Yep, our cultural norm is a bit different. - Andy Baker [more] 
30-05-2011, 21:19
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