2 B

3. SOLDERING, BRAZING and WELDING Define soldering Differentiate between the following; Soft soldering and hard soldering/silver soldering and Electronics soldering Identify filler rods and fluxes used in each (pg 290) Describe the process of tinning a bit 4. Describe the following welding processes and sketch and label the tool used (www.technologystudent.com) Metal Arc welding Tungturn Inert Gas welding Metal Inert Gas welding Spot welding 5. RIVETS AND RIVETING Snap head riveting procedure Pop riveting procedure 6. NUTS and BOLTS Types of nuts Types of bolts Types of washers 7. FITTINGS Examples and be able to identify by sight and be able to sketch a) Hinges (butt hinge, backflap,piano hinge, stays, etc) b)Catches (Magnetic, ball, spring) c) Locks

If you need narrow deep penetration weld for heavv base metal, which type of current polarity you will use with DC current?

Brief description on all cold working methods, hot working methods and all kinds of welding.   Subject: Intro to manufacturing