In axialer Richtung hinterschnittener, in einem Halter eingeklemmter Schaftformstahl,申请号DE1958SC24379-传众专利搜索

In axialer Richtung hinterschnittener, in einem Halter eingeklemmter Schaftformstahl

申请公布号：DE1063878(B)

申请号：DE1958SC24379

申请日期：1958.07.11

申请公布日期：1959.08.20

申请人：

FA. ALFRED H. SCHUETTE

发明人：LENTZ HERMANN

分类号：B23B27/00;B23B27/06;B23Q17/22

主分类号：B23B27/00

摘要：924,210. Cutting tools. G. COMMER, L. WELCKER, E. THEN, E. F. VON PECHMANN, K. SCHUTTE, E. BRAUN, and K. WELCKER, [trading as ALFRED H. SCHUTTE]. July 7, 1959 [July 11, 1958], No. 23363/59. Class 83 (3). A form tool comprises a stepped cutting portion 10, Figs. 1, 2, having a shank 11 clamped in a holder 12, portion 10 having cutting edges 13 which are helically undercut at 13<SP>1</SP>. A helical shoulder 14 on shank 11 having a pitch the same as surface 13<SP>1</SP>, engages an abutment surface 15 of a member 17 secured to holder 12, and face 16 of the tool engages a surface 18 on member 17, so that the tool is always placed in the holder in the same position. In a modification, Figs. 3, 4, tool 10 has a single cutting edge, and is used eccentrically to an existing bore to open up the latter. Shoulder 14 may be as any position on shank 11, as a groove in the latter, or on a bush mounted on the shank.