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Metal Working Processes, Tools, and Machines (sheet and small section steel)

Metal Working Processes, Tools, and Machines (sheet and small section steel). Eng. Bob Fairchild CHAB Stove Camp The Farm Sept 2012. “Raw” Materials. Plain steel sheet Galvanized steel sheet – flat, corrugated, d-rib Stainless steel sheet Plain steel rod, rebar, bar, angle Slotted angle

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Metal Working Processes, Tools, and Machines (sheet and small section steel)

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

  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

  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

  4. “Processed” materials • Stovepipe • Steel buckets • Steel drums/barrels • Stainless steel “Cornys” • Pots and bowls • Cast iron grates

  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

  6. Measuring tools

  7. Marking tools

  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

  9. Twist drills Step drills

  10. Hole saws Bimetal Carbide

  11. Hollow punches Hand punches

  12. Knockout punches Foot lever punch

  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 andpower saws (hack, jig, circular, chop, …)

  14. Snips

  15. Nibblers

  16. Hand notchers

  17. Lever notchers Hand lever notcher: 6”-152mm Foot lever notcher: 3 1/8”-80mm

  18. Slotted angle shear

  19. Circle cutter – electric drill powered

  20. Hand lever shears

  21. Shear machines Foot shear Circle shear - manual

  22. Drum deheaders

  23. Grinding • Stones • Files • Angle grinder (electric, pneumatic) • Grinding wheel (hand, foot, electric)

  24. Angle grinders

  25. Bending • Pliers benders • Cleat bender • Sheet metal brake • Angle bender

  26. Pliers benders

  27. Bending machines Cleat bender (1/2” (12.5mm) 180° fold) Sheet metal brake (bender)

  28. Angle iron cutter, notcher, bender

  29. Rolling(making cylinders and rings) • Hand rolling • Slip roller – sheet metal • Bead roller, edger, flanger • Ring roller – bar/angle/rod

  30. Manual rolling machines Slip roll Bead roller Ring roller

  31. Joining • Crimping • Bending (tab and slot) • Riveting • Screwing • Bolting • Spot welding • Welding

  32. Rivet gun

  33. Spot welder

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