摘要:
A pin milling cutter includes an adaptor 2-10 mounted on a processing machine, and a substantially annular cutter body 2-50 which is attached to the adaptor 2-10 and rotates around an axis. The cutter body 2-50 is formed with a substantially annular flange part 2-52 which protrudes in a radial direction of the cutter body 2-50 from the entire periphery of a peripheral face 2-51 of the cutter body 2-50, and the adaptor 2-10 is formed with a substantially annular stepped part 2-12 which is recessed in the radial direction of the cutter body 2-50 from the entire periphery of a peripheral face 2-11 of the adaptor 2-10 and receives the flange part 2-52. With the cutter body 2-50 attached to the adaptor 2-10, the flange part 2-52 and the stepped part 2-12 are brought into surface contact with each other such that they overlap each other in the radial direction of the cutter body 2-50, and the radial length of the cutter body 2-50 in this contact surface is set to be in a range of 0.1D to 1.0D of the thickness D of the cutter body 2-50.
摘要:
The invention relates to a broaching tool for machining the surfaces of bores in order to introduce at least one groove. Said tool comprises at least one cutting head (5) with at least one blade (69) and a base body (3) that supports the cutting head (5). The tool is characterised in that the cutting head (5) is mounted eccentrically in the base body (3) so that it can be displaced in a rotative manner and that the central axis (65) of the cutting head (5) forms an acute angle (α) with the central axis (7) of the base body (3).
摘要:
Cutting resistance is reduced effectively, the strength of a cutter body is kept high, and manufacture is facilitated. The deflection precision of cutting edges is kept high, without causing the cutter body to deviate in an axial direction with respect to an adaptor even due to the load and cutting heat in a thrust direction. Therefore, cutting edges are formed at the intersecting ridgeline parts between a pair of oppositely disposed long side faces 22 and 22 of a substantially trapezoidal flat-plate-shaped tip body 20 and upper and lower faces 21 and 21 of the tip body 20. A tip is mounted on a first tip mounting seat 13 formed in a peripheral face of the cutter body 10 such that a thickness direction of the tip body 20 is approximately aligned with a radial direction of the cutter body 10 to provide curved edges 25A formed in acute corner parts 24A of the tip body 20 for cutting. The tip is mounted on a second tip mounting seat 14 formed in an end face 12A (12B) of the cutter body 10 such that the thickness direction of the tip body 20 is approximately aligned with the direction of an axis O of the cutter body 10 to provide curved edges 25A formed in obtuse corner parts 24B of the tip body 20 for cutting.
摘要:
Insbesondere zur Herstellung von kreisbogenförmigen Rotornuten mit Tannenbaum-Querschnitt in Turbinenrotoren sind Glockensenker (11, 11', 11'') vorgesehen, die nach Öffnen einer grob konturierten bogenförmigen Nut in diese eingetaucht und seitlich auf die Flanke der Nut hin zugestellt werden. Ein solcher Glockensenker weist einen topfförmigen Werkzeugkörper (12) auf, von dessen Boden (13) sich ein ringförmiger Trägerabschnitt (14) mit einzelnen Stollen (16) weg erstreckt. Die Stollen tragen an ihrer Innen- oder Außenseite Wendeschneidplatten, die in ihrer Überdeckung das Flankenprofil der Nut bestimmen. Solche Glockensenker ermöglichen eine Bearbeitung der kreisbogenförmigen Nuten in einer Barbeitungszeit, die gegenüber der zur Bearbeitung mit herkömmlichen Formfräsern erforderlichen Zeit drastisch verkürzt ist.
摘要:
A rotary disc cutter for cutting workpieces, especially gears and the like. The rotary cutter comprises a plurality of cutting blades arranged about the periphery of a rotary disc cutter body (1) with at least a portion of the blades being roughing blades (2) comprising a tip (26) and two sides (27) with each side (27) having first (28) and second (29) side portions. The first side portion (28) along with the tip (26) defining a cutting surface of the blades while the second side portion (29) is relieved such that a clearance (30) is formed between the second side portion (29) and the surface of the workpiece (19). The clearance (30) being of a dimension to allow the flow of coolant therethrough thereby improving the cooling of the cutting surface and enhancing the flow of chips away from the vicinity of the blades. The invention further includes a substantially reduced number of blade segments (80, 81, 82, 83). Alternative blade tip configuration (73, 74, 75) are also disclosed.
摘要:
The face miller (12) is equipped with a plurality of plate-shaped hard material cutting inserts (20) that are distributed over the circumference. The hard material cutting inserts are located on a graduated circle in pockets (18) of a blade carrier (16) and have a main cutting edge (24), which is adjusted at a cutting edge angle (Kr) smaller than 90º relative to the working plane (26) of the miller. In order to ensure maximum machining performance at a good service life, the cutting edge angle (Kr) is selected to range between 10º and 30º, preferably between 15º and 25º, wherein the main cutting edge (24) at the same time has a slightly convex design. The main cutting edge (24) transitions into the secondary cutting edge (32) via a transition radius (R30) having a value that ranges between 0.5 and 1.5 mm. The axial rake angle (ya) ranges between 20 and 30º, preferably between 23 and 27º. According to an advantageous further development, the radial rake angle (yr) ranges between -6º and -10º, preferably between -7º and -9º.
摘要:
The present invention relates to a tool for milling, a milling body and a method for milling. The milling tool comprises a milling body (11) and a plurality of cutting inserts (13, 13A, 13B). The milling body has fastening devices (12) such to hold the cutting inserts in a plurality of insert pockets (18) comprising at least one base surface (19, 19A, 19B). Each of said cutting inserts has at least one cutting edge. The tool has a rotational axis and a rotational direction (R), a feed direction (F) as well as an end surface (14). The milling tool (10) is provided to cut a work piece substantially in an axial direction (A) of the tool, which is substantially perpendicular to the feed direction (F).