Identifier: canmachinerjuldec1917toro (find matches)
Title: Canadian machinery and metalworking (July-December 1917)
Year: 1917 (1910s)
Authors:
Subjects: Machinery Machinery Machinery
Publisher: Toronto MacLean-Hunter
Contributing Library: Fisher - University of Toronto
Digitizing Sponsor: Algoma University, Trent University, Lakehead University, Laurentian University, Nipissing University, Ryerson University and University of Toronto Libraries

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FIG. 5 FIG. 7. ing away of the chip is shown at D inFig. 2, and the direction of these saw-tooth serrations is opposite to whatmight be supposed, inasmuch as theteeth point toward the cutting tool in- owing to the varying characteristics andability of those who are employed tooperate the various classes of machines.To assist or try to assist those whodo not have the advantage of a special often develop along the edge, these be-ing invisible to the naked eye but whenused again on the work will result inthe edge crumbling away, thus destroy-ing the effectiveness of the tool. This July 5, 1917. CANADIAN MACHINERY 21 TOOL GRINDING CHART CLEARANCE AND RAKE ANGLES FOR VARIOUS CUTTING TOOLS. SMALL STRAIGHT ARROWS INDICATE THE DIRECTION OF RAKE ON FACES A.CURVED ARROWS SHOW POSSIBLE PATH OF CUTTING POINT UNDER PRESSURE.CENTER COLUMN ILLUSTRATES A FEW SUGGESTIONS FOR SETTING TOOLS.DISTANCEHSHOULD BE SHORT AS POSSIBLE TO AVOID SPRING AND CHATTER. Jl. ROUGHING 12. CORNER /. PARTING 2. FACING
Text Appearing After Image:
22 objectionable feature of grinding edgetools is further emphasized if the wheeldoes not cut freely and undue pressureis required to accomplish the desiredpurpose. K— P-

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