Soldering And Brazing

Soldering is a method of joining two pieces of metal together with an alloy of lead and tin, sometimes with bismuth added if a solder with a low melting point is desired. As lead has the highest melting point of the three, solders containing a high percentage of lead and a lower percentage of tin, or a high percentage of lead and a low percentage of tin and of bismuth have the highest melting point. Lead has a melting point of 620 degrees Fahrenheit, tin a melting point of 445 degrees Fahrenheit. The solder most commonly used, called half-and-half, composed of 50% lead and 50% tin has a melting point of 428 degrees Fahrenheit. A solder composed of 32% lead. 15.5% tin and 52.5% bismuth has a melting point of 205 degrees Fahrenheit, which is below the boiling point (212 degrees Fahrenheit) of water at sea level.

The gunsmith does not have much use for solder except in sweating ramps, barrel bands, scope base blocks or rear sights to the gun. He also uses this process at times in making tools, such as when he sweats two pieces of steel together temporarily for machining in lathe, drill, grinder or milling machine.

Sweating is a slightly different process than ordinary soldering and approaches brazing in its strength when

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Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.

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