GB838511A - Improvements relating to the securing of slitting saws and other cutting tools to their holders or supports - Google Patents

Abstract

838,511. Securing saws, milling cutters &c. on shafts. RAWDON ENGINEERING & TOOL CO. Ltd., and HINDLE, A. July 19, 1957 [April 19, 1956], No. 11886/56. Class 80 (2). [Also in Group XXII] A cutting tool is secured to its holder or support by forming shallow grooves or depressions in the tool or in its gripping members, whichever is of the harder material, and the depth, form and location of the grooves is such that when the tool is gripped by the gripping members the surface of softer material is elastically deformed into the grooves to form a number of non-permanent miniature driving keys. As applied to securing a slitting or like circular saw 1 to an arbor 3, radial grooves of about <SP>1</SP>/ 16 inch wide at about # inch pitch and a few thousandths of an inch deep are formed in one or both faces of the saw and extend only over the mid portion of the face so as to leave the face plain near the cutting edge and near the arbor. The gripping collars 4, which are of toughened steel that is softer than the hardened steel of the saw, are recessed at 5 so that their grip is concentrated near the periphery. The grooves may be continuous or broken and only partly radial and they may be machined or produced by hot or cold forming, engraving, etching or embossing. The method is also applicable to securing milling cutters to their driving members or insert tools (such as lathe tools or insert milling cutter blades) to their holders.