1. Final Review

2.  Fusion -- Heating two pieces of metal to their melting point and allowing them to flow together.  Base Metal -- Metal to be welded  Penetration -- Distance at which fusion ceases  Inner Cone -- Inner white part of Neutral flame  Tack Weld -- Short weld to temporarily hold metal in place  Backfire –Momentary burning back of flame into the tip. Flame goes out with a loud pop.  Flashback – Flame burns back inside the torch body.

3.  Arc -flow of current across a small gap.  Crater --depression at the end of the weld  Penetration --depth of weld into the base metal  Welding --joining of two or more metal by fusion  Spatter – Deposit of small spots or particles of metal on the base metal.  String Bead – Weld bead made with very little rod manipulation.  Pad – Series of overlapping String Beads

4.  Keep floor dry to prevent electrical shock.  Make sure ventilation is turned on.  Always wear the proper P.P.E.  Never look at an Arc without the proper welding shaded lens.  Make sure machine is properly set up before starting the welding process.  Always place the Electrode Holder on its hook and never set it on the work bench.  Never engage yourself in any activity that would endanger the well being of yourself, other students, the teacher and the shop.

5.  Never adjust Acetylene above 15 psig.  Stand of to one side when opening the Regulator. Never directly in front.  For a Flashback, turn off Oxygen torch valve first then Acetylene torch valve.  Keep cylinders upright and firmly anchored.  Keep valves closed on empty cylinders.  Make sure Adjusting Screw is released or turned out before opening valve.

6. OXYGEN HEAT FUEL

7.  Class A – Combustible Materials  Class B – Flammable Liquids  Class C – Electrical  Class D – Combustible Metals

8. 7018 E = Electrode 70 = 70,000 lbs. per square inch (Tensile Strength) 1 = All Positions (Position) 8 = Low Hydrogen, DCEP, AC, Medium Penetration (Special Characteristics)

9. Methods to Strike an Arc

11.  Stock must be this long to safely rip on the Table Saw:  12”  How high should the blade be adjusted above the stock:  1/8” to 1/4”  When ripping a board that is narrower then ______inches, you must use a __________ __________: - 6 & Push Stick  When ripping, when is the stock released. After it passes: - The back of the Blade Insert or Throat Plate.  How much should the stock be oversized when ripping: - 1/8”  Should the good face of the stock be facing up or down when using the Table Saw: - Up  Stand to the ________ side of the blade when ripping narrow stock: - Left

12.  Amount of material removed with each pass:  1/16”  Length the board must be to safely run through the planer:  12”  Must use this when plaining stock thinner then 1/2”:  Auxiliary Bed  Have the face of the stock you want surfaced facing:  Up  The Concave (cup) surface of the stock should be facing:  Down

13.  Amount of material removed with each pass: - 1/16”  Length the material must be to safely joint: - 12”  Is the stock feed with or against the grain: - With  When edge jointing, is the “Crown” facing up or down: - Up

14.  Size of saw determined by: - Diameter of blade - Diameter of blade  Must keep fingers and hands from the saw blade this distance: - 6” - 6”  The process to line up the cut is called a: - Dry Run  Have the good face of the stock facing: - Up

15.  Rule of thumb for the depth of a Dado or Rabbet cut if not shown on a set of plans: - 1/2 the thickness of the stock  A slot or trench that is cut with or parallel to the grain: - A Groove  A slot or trench that is cut against or perpendicular the grain: - Dado  When staining, how long should the stain soak into the wood. - Ten Minutes

16.  When changing a Saw Blade or Router Cutter loosen the nut with the rotation.  When gluing up stock together  Make sure growth rings are alternating  Put glue on both parts  Do not smear glue into the face grain  Tighten clamp until glue beads up.  Do not over tighten clamps.

17.  On sandpaper the higher the number the finer the grit.  Before making any type of cut, make sure:  Stock is securely held down  Blade or Cutter is clear of stock  Proper P.P.E.

18. N x T x W x L” or N x T x W x L’ 144 12 Example: 4 – ¾” x 4-1/2” x 15-1/4” 4 x 1 x 4.5 x 15.25 = 274.5 274.5 / 144 = 1.90 Bdft.