Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . rs of this character, made in ap-propriate widths, are used very much for milling broad, flat sur-faces and for cutting keyways in shafts. For deep cuts, or forslitting metal, they are made of large diameter and thin. Theseare called metal-slitting saws, and are ground hollow on the sidesfor clearance. The second class of cutters is known as the radial. Fig. 106, mwhich the surface cut is perpendicular to the axis of the cutters are called radial
Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . rs of this character, made in ap-propriate widths, are used very much for milling broad, flat sur-faces and for cutting keyways in shafts. For deep cuts, or forslitting metal, they are made of large diameter and thin. Theseare called metal-slitting saws, and are ground hollow on the sidesfor clearance. The second class of cutters is known as the radial. Fig. 106, mwhich the surface cut is perpendicular to the axis of the cutters are called radial because their teeth are used in aplane parallel to the radii of the cutter. End mills, face mills,butt cutters, etc., are all tools in this class. The third class of cutters is the angular, Fig. 107, in which thesurface cut is neither parallel nor perpendicular to the axis of the HARDENING MILLING CUTTERS. 155 cutter, but is at some angle with this axis. Frequently cutters aremade with two different angular cutting edges, in which case theangle is marked on each The fourth class of cutters is the formed cutter, as shown in. AngularI^IG. 107.—ANGULAR TYPE OI*MILLING CUTTER.
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Keywords: ., bookcentury1900, bookdecade1900, bookidhardeningtem, bookyear1903
