A milling cutting insert has a substantially triangular shape. The cutting insert contains a top side, an underside, and circumferential side surfaces extending between the top side and the underside. Cutting edges are formed at the transition of the circumferential side surfaces to the top side and/or the underside. On the circumferential side surfaces at least two discrete planar abutment surfaces are formed for positioning the cutting insert in a tool holder. The at least two discrete planar abutment surfaces are inclined with respect to each other at an outer angle of between 190° and 220° and the abutment surfaces are spaced from each other with respect to the circumferential direction of the cutting insert.

A milling tool includes a cutting insert, a holder, a fastener and a shim. The fastener forms a first channel cooperatively with the cutting insert. The first channel is configured to direct coolant towards a top side of the insert. In order to better prevent thermal fatigue of the cutting insert under milling conditions, the shim includes a second channel configured to direct coolant towards a clearance side of the cutting insert. A method of using a milling tool and a milling process are also provided.

A rotary cutting tool includes a rotary tool body, a blade clamp, a cutting insert, a clamp fastener, and an insert fastener, wherein the rotary tool body has an insert pocket to define a bottom positioning face, a first lateral positioning face and a second lateral positioning face. The cutting insert is affixed to the blade clamp via the insert fastener. The first lateral positioning face is orientated opposite to a side cutting edge of the cutting insert. The blade clamp is slid into the insert pocket in an axial direction of the rotary tool body, wherein the blade clamp is coupled by the first and second lateral positioning faces in an interference clamping manner and is retained at the rotary tool body by the clamp fastener. The present invention has the advantages of strong radial impact resistance, high positioning accuracy, high safety concern and long service life.

A cartridge for a cutting insert has a carrier, a rocker, which is attached to the carrier so as to be pivotable and has a seat for a cutting insert, and an adjusting element for adjusting the rocker relative to the carrier.

A tool body having an insert seat and a cutting tool which allow a cutting insert to be stably held are provided. A tool body according to the present invention is a tool body having an insert seat for mounting a cutting insert on the tool body, wherein the insert seat has a base surface and a side wall surface which extends so as to intersect with the base surface. The base surface has a contact surface and a contact projected part which come into contact with the cutting insert. A contact part of the contact surface is comprised of a surface, and a contact part of the contact projected part has a linear shape or a point shape.

A cartridge for positioning a cutting insert onto a machining tool has a central longitudinal axis, along which the cutting insert is configured to be positioned and an end wall for supporting the cartridge. The end wall defines a first surface extending beyond the end wall and transversally to the central longitudinal axis. The cartridge includes a rear wall for supporting the cartridge against the machining tool and defining a second surface extending beyond the rear wall and a front clamping wall having a clamping hole. The clamping hole extenda along a clamping direction and is configured to receive a clamping screw for clamping the cartridge onto the machining tool, wherein the clamping direction is arranged to intersect the first and second surfaces.

A milling cutter (100) comprising: a cartridge (33) that has a tip (32) fixed thereto; a body (10) that has a pocket (15) formed therein into which the cartridge (33) is inserted; and a fixing tool (40) that fixes the cartridge (33), wherein the body (10) has a fixing tool insertion hole (16) that is adjacent to the pocket (15) on the radial direction inner side thereof, and a partitioning wall (17) between the pocket (15) and the fixing tool insertion hole (16), the fixing tool (40) that has been inserted into the fixing tool insertion hole (16) exerts a radial direction outward force on the partitioning wall (17), the pocket (15) is formed so as to produce a counterforce that resists the radial direction outward force acting on the cartridge (33) via the partitioning wall (17), and the cartridge (33) is fixed in the pocket (15) on the basis of the radial direction outward force.

The present invention provides a rigid cartridge for multiple and universal application of all machining processes. The rigid cartridge includes a cylindrical body, a guiding and locating body connected to bottom side of cylindrical body, and a combination screw having a left hand [LH] thread and a right hand [RH] thread, wherein the cylindrical body includes a flat for locking the cartridge with the cutter body using locking screws, wherein the combination screw is connected to the bottom end of said guiding and locating body. The LH thread can be provided in cartridge side and RH thread can be provided in cutter body side or vice versa. In the cutter body or boring bar, a slot and/or approach hole can be provided in the cutter body for enabling to rotate the combination screw in clockwise or anti-clockwise direction to move the cartridge in forward and backward direction with respect to the cutter body.

The objective of the present invention is to provide a cutting insert which reduces cutting load and can be accurately positioned at a coupling part of a cutting tool even if cutting edges are broken or deformed. To this end, the cutting insert of the present invention includes an upper surface, a lower surface, a plurality of lateral surfaces connecting the upper surface with the lower surface, and a plurality of upper cutting edges formed between the plurality of lateral surfaces and the upper surface. In addition, the cutting insert coupled with the coupling part of the cutting tool includes: first and second upper cutting load reducing portions formed on the upper surface and provided at each side coming in contact with first and second upper cutting edges of the plurality of upper cutting edges facing each other so as to reduce the cutting load; and a one side position setting portion provided on a first lateral surface of the plurality of lateral surfaces not coming in contact with the first and second upper cutting edges so as to set the position of the cutting insert in the coupling part.

A purpose is to provide a cartridge that can adjust position even if a body does not have an adjusting mechanism. A cartridge 10 is provided on a body B of a milling tool. The cartridge 10 is connected to an upper surface 10a, a lower surface 10b, and a first side surface 10c, and a slit 10h that divides the cartridge 10 into a main body part 10j, a thin material portion 10k, and a connecting part 10m that connects the main body part and the thin material portion is formed in the cartridge. Furthermore, a screw hole 10n with second female threads is formed in order for a second male screw that passes through the slit 10h to screw into. Furthermore, wherein the second male screw travels forward, the relative position of the main body part 10j changes with regard to the thin material portion 10k.