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Metal Working Processes, Tools, and Machines (sheet and small section steel) Eng. Bob Fairchild CHAB Stove Camp The Farm Sept 2012

Mar 29, 2015



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Metal Working Processes, Tools, and Machines (sheet and small section steel) Eng. Bob Fairchild CHAB Stove Camp The Farm Sept 2012 Slide 2 Raw Materials Plain steel sheet Galvanized steel sheet flat, corrugated, d-rib Stainless steel sheet Plain steel rod, rebar, bar, angle Slotted angle Expanded metal Hardware cloth Steel pipe, conduit Slide 3 Why Steel? Cheap Durable Takes high temperatures Not too difficult to work Stainless - takes heat better but is harder and much more expensive and less heat conductive Slide 4 Processed materials Stovepipe Steel buckets Steel drums/barrels Stainless steel Cornys Pots and bowls Cast iron grates Slide 5 Measuring and Marking Scale/ruler Tape measure (length and diameter) Square Protractor Scribe (w or w/o blacking and bluing) Pens, pencils Dividers/compass Snap punch Center punch Sheet metal gauge Slide 6 Measuring tools Slide 7 Marking tools Slide 8 Making Holes Church key can opener Twist drills (lousy in sheet metal) Step drills (great in sheet metal) small Hole saws (bimetal and carbide teeth) - large Hollow punches Hand punches Knockout punches Foot lever punches Slide 9 Twist drillsStep drills Slide 10 Hole saws BimetalCarbide Slide 11 Hollow punches Hand punches Slide 12 Knockout punches Foot lever punch Slide 13 Cutting Hammer and chisel Hand and power snips Hand and power nibblers hand notchers Hand and foot lever notchers Slotted angle shear Angle shear, notcher Circle cutter Circle shear Hand lever shear Foot shear Rotary can openers Drum deheader Angle grinder Hand and power saws (hack, jig, circular, chop, ) Slide 14 Snips Slide 15 Nibblers Slide 16 Slide 17 Hand notchers Slide 18 Slide 19 Lever notchers Hand lever notcher: 6-152mmFoot lever notcher: 3 1/8-80mm Slide 20 Slotted angle shear Slide 21 Circle cutter electric drill powered Slide 22 Hand lever shears Slide 23 Shear machines Foot shear Circle shear - manual Slide 24 Drum deheaders Slide 25 Grinding Stones Files Angle grinder (electric, pneumatic) Grinding wheel (hand, foot, electric) Slide 26 Angle grinders Slide 27 Bending Pliers benders Cleat bender Sheet metal brake Angle bender Slide 28 Pliers benders Slide 29 Bending machines Cleat bender (1/2 (12.5mm) 180 fold) Sheet metal brake (bender) Slide 30 Angle iron cutter, notcher, bender Slide 31 Rolling (making cylinders and rings) Hand rolling Slip roller sheet metal Bead roller, edger, flanger Ring roller bar/angle/rod Slide 32 Manual rolling machines Slip roll Bead roller Ring roller Slide 33 Joining Crimping Bending (tab and slot) Riveting Screwing Bolting Spot welding Welding Slide 34 Rivet gun Slide 35 Spot welder