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Welding Processes - Shop Floor Talk
Quick Summary: Some approximate starting advice is to set the spindle speed between 700-1000 rpms for steel, above 2000 for aluminum, and slow down from there if you get discolored chips or heavy drill bit wear. In most cases the drill press will not be able to supply enough power or speed to follow the below recommendations. A 3/8" drill bit drilling mild steel at the recommended speed and feed could require around 1 hp. Going slower usually doesn't hurt, and will prolong tool life. Drill press spindle speeds depend on lots of things: the type of material being drilled and its hardness, the hole size, the type / hardness of the drill bit and its sharpness, whether or not a cutting / cooling fluid is used, and the rigidity of the drill and clamp, among others. How to choose the right drill speed How to choose the right drill speed
Welding and Metal Arts Career Guide Welding and Metal Arts Career Guide Joining and Cutting Processes Web sites that describe joining and cutting processes, basics of welding, and specific types of welding. Welding Links and Resources
What is Brazing? Brazing, simply put, is joining metal to metal by filling the joint with a different, melted metal at temperatures over 840F. The melted metal filling the gap must be able to wet the pieces being joined so that it is drawn into the gap by capillary action. Basic Brazing Information For Bicycle Builders Basic Brazing Information For Bicycle Builders
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JoeWelder.com™ One comment we hear often about TIG Torch packages “What do you mean a torch package only includes a torch body and a cable?” Those of us in the industry are used to this, but fabricators new to the industry can easily end up ordering a TIG torch that they can’t use—at least until they buy the front end accessories. A premium TIG torch package includes rubber cables and hoses, and a standard package includes vinyl, plastic cables and hoses. What you don’t get is the front end parts you’ll need to actually use you torch: gas nozzles, collets and collet bodies, a back cap, and tungsten electrodes. If you already have the TIG torch accessories you need, a standard or premium torch package is the way to go, but if you’re just starting out, or have a welding project that requires a different front-end setup for your torch, you’ll need to get the proper parts. JoeWelder.com™
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