An indexable parting blade has opposite blade first and second sides, a blade peripheral edge, a central index axis, and at least first, second and third insert pockets located along the blade peripheral edge. The parting blade also has first, second and third coolant channels, each forming a coolant path from a corresponding inlet to a corresponding one of the insert pockets. Each coolant channel includes a rake outlet opening out to a rake side of its corresponding insert pocket and a relief outlet opening out to a relief side of that same insert pocket. The inlet corresponding to a given coolant channel is located further from that coolant channel's insert pocket than at least one of (a) the inlet corresponding to a different coolant channel, and (b) the central index axis.

A tool adaptor has a front retaining portion and a rear mounting portion, the front retaining portion having a base jaw, a clamping jaw, and an insert receiving pocket located therebetween, and the rear mounting portion having a rear mounting surface and a first fastening bore. A primary slot separates the base jaw from the clamping jaw and communicates with the insert receiving pocket, and a secondary slot transverse to the primary slot separates the clamping jaw from the rear mounting portion. The first fastening bore has a first bore axis which intersects the rear mounting surface and the secondary slot. A cutting tool assembly includes a tool shank, and the tool adaptor secured to a front mounting portion of the tool shank by means of a first fastening screw occupying the first fastening bore and a first shank bore of the front mounting portion.

A clamping member in a non-limiting aspect of the present disclosure may have a columnar shape extended from a first end to a second end. The clamping member may include an upper jaw, a lower jaw and a pocket. The upper jaw and the lower jaw may be located away from each other. The pocket may be located between the upper jaw and the lower jaw. The upper jaw may include a first member and a second member. The second member may be located closer to the first end than the first member. Hardness of the first member may be first hardness, and hardness of the second member may be second hardness. The first hardness may be different from the second hardness.

An apparatus and corresponding method for machining at least one spline in an aeronautical component. The apparatus comprises a holder defining an axial direction about which the holder is moveable, and a cutting insert attachable to the holder. The apparatus further comprises a coupling for attaching the cutting insert to the holder about a second direction that is perpendicular to the axial direction of the holder. The holder may comprise a first alignment feature for orientating the cutting insert at a single orientation with respect to the holder. The cutting insert may comprise at least one cutting tooth, wherein each cutting tooth comprises a cutting edge. The cutting insert may comprise a first datum surface which is spaced from each cutting edge by a respective predetermined spacing.

A turning process method for processing a step-shaped workpiece includes: feeding a tool in a rotation axis direction and/or a radial direction of a workpiece while rotating the workpiece; using a tool that includes an insert with a main cutting edge having a straight portion and a machine tool having a pivot shaft of the tool in the machine side; processing a peripheral surface of the small diameter portion by turning the pivot shaft so as to have a cutting edge angle of less than 90°, the cutting edge angle having an angle between the straight portion of the main cutting edge and the rotation axis direction; and processing an end surface and a peripheral surface of the large diameter portion by turning the pivot shaft so as to have the cutting edge angle of 90° or more at a front of the large diameter portion.

Improvements in tooling for machining systems that utilize machining fluids comprising a supercritical fluid are disclosed. In some embodiments a tool may include a plurality of orifices configured to direct a supercritical machining fluid towards a cutting interface of the tool. In other embodiments, a tool holder may include one or more outlets configured to direct a supercritical machining fluid towards a cutting interface. Moreover, some embodiments, may relate to machining systems including one or more venting channels configured to provide pressure relief for a cavity located behind a tool holder. Embodiments related to machine tools including upstream fluid restrictions for controlling a flow of supercritical machining fluid through a tool are also disclosed.

The invention relates to a cutting tool with a holder, a cutting insert and a screw, wherein the holder has at least one seat with a base, a first side wall and a second side wall, wherein in a plane parallel to the base the first side wall extends in a first direction and the second side wall includes an acute angle (C) with the first side wall, wherein the base has a threaded hole for receiving the screw, wherein the cutting insert has a cut-out for the screw, wherein the cutting insert has a base contact surface, a first positioning surface and a second positioning surface, and wherein in a locked position the base contact surface, the first positioning surface and the second positioning surface of the cutting insert contact the base, the first side wall and the second side wall of the at least one seat, respectively, wherein the second side wall is offset from the threaded hole in the first direction towards a front end of the seat, and in that a screw head of the screw and the cut-out of the cutting insert are provided with complementary conical surfaces, such that when tightening the screw the cutting insert is forced with the first positioning surface and the second positioning surface against the first side wall and the second side wall, respectively.

A tool holder includes a coolant cavity opening out to a cavity inlet and outlet openings. The coolant cavity includes a cavity upper surface which extends along a cavity central axis. The cavity upper surface includes a cavity widening surface firstly which decreases in distance from the holder peripheral surface and secondly along which the cavity cross-sectional area increases, both with increasing distance from the cavity inlet opening. The cavity upper surface also includes a cavity narrowing surface, located further from the cavity inlet opening than the cavity widening surface, firstly which increases in distance from the holder peripheral surface and secondly along which the cavity cross-sectional area decreases, with increasing distance from the cavity inlet opening. A cutting tool is provided having a cutting insert releasably attached to the tool holder.

An adjustable angle toolholder comprising a shank and an adjustable head is provided. The shank has a first end and a second end. The first end is adapted to be held in a machine, such as a lathe. The second end includes a fixed plane oriented parallel to a lengthwise direction of the shank. The fixed plane includes an arcuate face at a distal end of the fixed plane. The head has a fixed plane that mates with the fixed plane of the shank. The fixed planes of the shank and head include a pivot hole through which a pivot bolt passes. The pivot bolt allows adjustment of the head through a wide range of angles relative to a lengthwise direction of the shank, while the fixed planes maintain a position of a centerline of a cutting tool constant with respect to a centerline of the shank. The fixed plane of the shank may be on a centerline of the shank.

A grooving tool holder includes a lower portion, an upper portion, a cutting insert receptacle, a first fastener-mating hole, a second fastener-mating hole, a first axis, and an upper portion. The upper portion is pivotable relative to the lower portion. The cutting insert receptacle is disposed between the lower portion and the upper portion. The cutting insert receptacle includes an upper clamping jaw disposed in the upper portion and a lower clamping jaw disposed in the lower portion. The first fastener-mating hole is disposed in the upper portion. The second fastener-mating hole is disposed in the lower portion in alignment with the first fastener-mating hole. The first axis extends longitudinally along the grooving tool holder through a center of the first fastener-mating hole. The upper portion includes differently shaped or sized first and second portions disposed on opposite sides of the first axis which are within +−20% of one another.