METC 1312 Third Quarterly Exam Identify these parts of a vertical milling machine. Adjusting bolt for swiveling the head Cross traverse lock Cross traverse hand crank Longitudinal traverse lock Longitudinal traverse hand crank Motor Quill feed handwheel for fine feed Quill feed lever for coarse feed Quill depth stop Quill Ram positioning lever Spindle Vertical traverse lock Vertical traverse hand crank Identify these parts Boring head Divider head Plain vise Rotary table Spring collet Universal vise Identify these gears Bevel Helical Herringbone Spur external Spur internal Worm Identify these milling cutters Center cutting end mill Concave Convex Corner rounding Double angle Dovetail Gear cutter Inserted tooth face mill Shell end mill Single angle Slitting saw Staggered tooth side T-slot Plain Plain side Woodruff key cutter Matching A type of cylindrical grinding in which the wheel is fed into the workpiece with little or no side movement - Plunge grinding Used for grinding external surfaces of cylinders and cones which are chuck mounted or held between centers - Cylindrical grinding Nonprecision grinding or small hand-held tool or parts - Offhand grinding Used for production of precision flat surfaces - Surface grinding Using shaped grinding wheels for grinding parts to a matching contour - Form grinding A type of cylindrical grinding which does not require parts to be held in a chuck or between centers - Centerless grinding Cylindrical grinding inside a cylinder of cone - Internal grinding The five natural abrasives used in industry - Diamond, Garnet, Crocus, Emery, Flint. The four artifical abrsives used in industry - Synthetic diamond, Boron carbide, Aluminum oxide, Silicon carbide The three properties of good abrasives - Penetration hardness, Wear resistance, Fracture resistance The property that refers to the ability of the abrasive to scratch - Penetration hardness The property that refers to the ability of the abrasive to resist breaking - Fracture resistance Terms Absolute Bevel Chamfer Direct indexing Dressing Face milling Helix Incremental Involute Lead Pinion Plain milling Know the nine formulas.