Metal Working Processes Tools and Machines sheet and
- Slides: 35
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, angle Slotted angle Expanded metal Hardware cloth Steel pipe, conduit
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
“Processed” materials • • • Stovepipe Steel buckets Steel drums/barrels Stainless steel “Cornys” Pots and bowls Cast iron grates
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
Measuring tools
Marking tools
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
Twist drills Step drills
Hole saws Bimetal Carbide
Hollow punches Hand punches
Knockout punches Foot lever punch
• • • • Cutting Hammer and chisel Hand power snips Hand power nibblers hand notchers Hand 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 power saws (hack, jig, circular, chop, …)
Snips
Nibblers
Hand notchers
Lever notchers Hand lever notcher: 6”-152 mm Foot lever notcher: 3 1/8”-80 mm
Slotted angle shear
Circle cutter – electric drill powered
Hand lever shears
Shear machines Foot shear Circle shear - manual
Drum deheaders
Grinding • • Stones Files Angle grinder (electric, pneumatic) Grinding wheel (hand, foot, electric)
Angle grinders
Bending • • Pliers benders Cleat bender Sheet metal brake Angle bender
Pliers benders
Bending machines Cleat bender (1/2” (12. 5 mm) 180° fold) Sheet metal brake (bender)
Angle iron cutter, notcher, bender
Rolling (making cylinders and rings) • • Hand rolling Slip roller – sheet metal Bead roller, edger, flanger Ring roller – bar/angle/rod
Manual rolling machines Slip roll Bead roller Ring roller
Joining • • Crimping Bending (tab and slot) Riveting Screwing Bolting Spot welding Welding
Rivet gun
Spot welder
- Flashless forging process
- Proses metal forming
- Concurrent in os
- Establishing a shielded metal arc is often described as
- Hot principle
- Hot working and cold working difference
- Machining operations
- Prinsip dasar proses pengerjaan panas yang benar adalah
- Acidity trends periodic table
- Compare the properties of metals and nonmetals
- Used of metals
- Is sulfer a metal nonmetal or metalloid
- Metal and non metal definition
- Metal characteristics
- Metal examples
- Process materials by hand with hand tools
- Hard work vs smart work presentation
- 6 simple tools
- Venn diagram gas liquid solid
- Pimp nimp
- Ionic compounds have
- Metal no metal y metaloide tabla periodica
- Características de los no metales
- Electrones de valencia de francio
- What is the folded edge on a sheet metal object
- Seam joint in sheet metal
- Clean and maintain kitchen premises
- Introduction of sheet metal
- Introduction of sheet metal
- Surface area to volume ratio in bulk deformation process
- Press working process
- What industry uses pattern developments?
- Through hole symbol
- Plastic extrusion defects
- Classification of sheet metal
- Bending operation in sheet metal