摘要:
Um bei einem Werkzeug (4) eine Feineinstellung der radialen Position einer Schneidplatte (2A,B) zu ermöglichen, wird bei einem Werkzeuggrundkörper (14), der einen Plattensitz zur unmittelbaren Befestigung der Schneidplatten (2A,B) aufweist, eine rückseitige Anlagewand für die Schneidplatten (2A,B) als ein elastisch gehaltener Steg (22) ausgebildet. Hierzu wird in den Werkzeuggrundkörper (14) ein Spreizschlitz (26) eingebracht derart, dass der Steg (22) lediglich noch an einer Befestigungsseite (24) mit dem restlichen Werkzeuggrundkörper (14) verbunden ist. In den Spreizschlitz (26) ist eine Einstellschraube (28) zur Feineinstellung einschraubbar. Diese Ausgestaltung erlaubt einen kompakten Aufbau und führt nur zu einer geringen Beeinträchtigung der Stabilität des Werkzeuggrundkörpers (14). Der Feineinstellmechanismus ist daher insbesondere auch bei kleinen Werkzeugen einsetzbar.
摘要:
A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an α-alumina layer and a Zr— or Hf— carbonitride outer layer deposited on the α-alumina layer. The Zr— or Hf— carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.
摘要:
A cutting tool 10 includes a body 12 having a forward end 14 and a rearward end 16. The forward end 14 includes an insert-receiving pocket 20a, 20b with a threaded hole 34 having a center axis 70. The cutting tool 10 further includes a cutting insert 40 with a countersunk bore 62 with a center axis 64. The cutting tool 10 includes an error proofing feature for preventing the cutting insert 40 to be properly mounted in an insert-receiving pocket 20a, 20b when an offset distance 76 between the center axis 70 of the threaded hole of the insert-receiving pocket 20a, 20b and the center axis 64 of the countersunk bore 62 of the cutting insert 40 is greater than a predetermined percentage of the outer diameter of the threaded screw 36.
摘要:
A rotary cutting tool formed from a blank, the rotary cutting tool comprising at least one tooth having a root, a cutting edge formed of veined PCD, and a face disposed between the root and the cutting edge. The face, as viewed in a cross-section perpendicular to an axis of the cutting tool, includes a first curved surface proximate the cutting edge and a second curved surface proximate the root and the first curved surface. For each cutting edge, the blank is provided with a respective groove having a leading surface that corresponds in shape to the first curved surface of the respective tooth.
摘要:
A drill (105) for making a hole within a workpiece has a body (110) extending along a longitudinal axis (115), at least one flute (120) extending along the body (110), and a drill point (125) extending from the end (112) of the body (110). The drill point (125) has a periphery (127) and is comprised of a chisel edge (135), a primary cutting edge (145) extending inwardly from the periphery (127), a secondary cutting edge (150) extending outwardly from the chisel edge (135), and a tertiary cutting edge (155) connecting the primary cutting edge (145) with the secondary cutting edge (150), wherein the tertiary cutting edge (155) has a negative axial rake angle (Z). A method for producing such a drill point (125) is also disclosed.
摘要:
A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.
摘要:
The invention relates to a device for attaching a ring-shaped milling tool carrier (10) by means of a threaded connection (15: Fig 5) to the machine receiver (11).