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Cutting tool principles a) Sketch a single-point metal-cutting tool and label it to show the rake angle, clearance angle and the wedge (tool) angle. b) List the factors that infl uence the choice of rake angle. c) With the aid of sketches show how sheet metal and tin plate can be held in a vice so that it can be sawn and fi led without vibrating. d) Show with the aid of a sketch what a vice shoe is, how it is used, and its purpose. e) With the aid of sketches show how the basic cutting angles are applied to the teeth of a hacksaw blade and explain the purpose of the set and chip clearance
»Cutting tool principles a) Sketch a single-point metal-cutting tool and label it to show the rake angle, clearance angle and the wedge (tool) angle. b) List the factors that infl uence the choice of rake angle. c) With the aid of sketches show how sheet metal and tin plate can be held in a vice so that it can be sawn and fi led without vibrating. d) Show with the aid of a sketch what a vice shoe is, how it is used, and its purpose. e) With the aid of sketches show how the basic cutting angles are applied to the teeth of a hacksaw blade and explain the purpose of the set and chip clearance of the blade. f) With the aid of sketches show how the basic cutting angles are applied to a cold chisel and how these are influenced by the angle of inclination of the chisel. g) With the aid of sketches show how sheet metal may be cut between the chisel and the vice jaws to create a shearing action. h) Explain how a fi le is specifi ed and give typical applications of (i) a half-round fi le, (ii) a three square fi le, (iii) a ward fi le, (iv) a round fi le and (v) a flat file. i) Name the faults you would look for before using the following items of equipment: i) hammer ii) chisel iii) fi le iv) spanner v) screwdriver.
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