Abstract: A milling tool for face milling includes a tool body and a plurality of cutting members arranged successively along a periphery of the tool body. Each cutting member includes a main cutting edge provided for a roughing operation and a subset having a first, a second and a third secondary cutting edge provided for a finishing operation. The first and third secondary cutting edges extend in a direction perpendicular to an axial direction and the second secondary cutting edge extends between the first and third secondary cutting edge. The main cutting edges are situated at the same radial position and the first secondary cutting edges are situated at the same axial position. A first end point of the second secondary cutting edges successively progress radially inward and a second end point of the second secondary cutting edges successively progress radially inward and axially outward along the periphery of the tool body.

Abstract: A method for controlling flow localization in machining process is disclosed. By application of a constraint of sufficient level in the deformation zone and modifying the surface boundary conditions, suppression of unsteady flow and flow instabilities is achieved. The method enhances machined component quality by ensuring a uniform deformation state on the machined surface. Machined components are produced by ensuing uniform deformation by adopting constrained-cutting process for suppressing the instabilities and unsteady flow through a pre-determined location of the constraint of the constrained machining process relative to the machining tool.

Abstract: A self-aligning counter bore cutting tool and method detachably attaches to a drill, and is rotatably driven by the drill, so as to cut a counter bore into a subfloor. The cutting tool includes an annular frame that has unique arm slots for retaining a plurality of cutting blades in a fixed position while rotating and cutting. A plurality of fastening blocks work to securely retain the blades in the arm slots. At least one oversized depth restriction frame extends beyond the blades to restrict the blades from cutting the counter bore beyond a predetermined depth. The frame includes a protruding shaft bushing that securely receives a drill chuck from the drill to create a secure, aligned coupling to the drill. The shaft bushing also aligns the blades with a mudsill fastening plate in the subfloor, so as to create a concentric counter bore at the appropriate depth in subfloor.

Abstract: An end mill has a shank section and a cutting section connected thereto. The cutting section includes a core supporting at least two spaced apart teeth that have a cutting edge extending in the axial direction with respect to the axis of rotation of the end mill. Each cutting edge has a flute associated therewith and each flute has, for each cross-section of the end mill perpendicular to the axis of rotation thereof, a bottom point on the core at a shortest distance to the axis of rotation. At least two flutes have a shortest distance that varies differently with the distance to a cutting end of the end mill.

Abstract: A main body (3) of a replaceable-tip cutting tool (1) includes a cylinder-shaped cylindrical portion (32) made from a first metal material and extending in an axial direction, and with a female thread portion (33) provided on an inner circumference (40) of the cylindrical portion (32) and capable of being screwed together with a male threaded portion (24) of a cutting head (2). The female thread portion (33) includes a first female thread portion (34) and a second female thread portion (35). The first female thread portion (34) is a portion between a top of a female thread crest (37) of the female thread portion (33) and a portion of the female thread portion (35) that is on the female thread crest (37) side of a female thread root (36) and on the female thread root side of a portion corresponding to an effective diameter of the female thread portion (33). The first female thread portion (34) is made from a second metal material that is different from the first metal material.

Abstract: In order to achieve as highly accurate an alignment of the reamer as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the reamer are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.

Abstract: A rotary power tool comprises a drive mechanism, a spindle rotatable about a rotational axis in response to receiving torque from the drive mechanism, and a first shank coupled for co-rotation with the spindle and having a first diameter. The first shank includes a first threaded portion upon which a first tool bit is receivable. A second shank is coupled for co-rotation with the spindle and extends outwardly from and coaxial with the first shank. The second shank has a second diameter that is smaller than the first diameter and a second threaded portion upon which a second tool bit is receivable.

Abstract: The present disclosure relates to a machine tool, in particular multi-spindle turning machine, comprising a machine frame, a turret body being rotatably supported by the machine frame, a plurality of workpiece spindles being arranged on the turret body, each of the workpiece spindles having a workpiece receiving portion for receiving a respective workpiece on one side of the turret body facing a working space of the machine tool, and a torque motor for driving a rotation of the turret body. The torque motor is arranged at a back end portion of the turret body opposite to the side of the turret body facing the working space of the machine tool, and a position locking mechanism for locking a rotational position of the turret body is arranged at a front end portion of the turret body on the side of the turret body facing the working space of the machine tool.

Abstract: A rotatable cutting tool, which extends along a tool axis defining an axial direction, includes a cutting formation in a first axial longitudinal end region, which is configured for material ablation on a workpiece, and includes a screw-connection formation in a second axial longitudinal end region opposing the first, which is configured for screw connection with a coupling unit. The cutting tool includes key-contact surface formations diametrically opposing each other with respect to the tool axis, which are configured for torque-transmitting abutting engagement with key surfaces of a key. Each of the key-contact-surface formations includes at least two key-contact surface regions provided with spacing from each other in the circumferential direction about the tool axis, which key-contact surface regions are inclined away from each other such that they form a vertex projecting away from the tool axis.

Abstract: A CNC milling machine includes a chassis unit having vertical seats. A machining unit includes a frontward-rearward movable machining seat located on the vertical seats, a leftward-rightward movable machining seat in front of the frontward-rearward movable machining seat, an upward-downward movable machining seat in front of the leftward-rightward movable machining seat, and a machining tool set at a bottom of the upward-downward movable machining seat. A picking robotic arm unit includes a frontward-rearward movable picking seat located on the vertical seats and in front of the frontward-rearward movable machining seat, a leftward-rightward movable picking seat above the frontward-rearward movable picking seat, an upward-downward movable picking seat adjacent to the leftward-rightward movable picking seat, and a claw set at a bottom of the upward-downward movable picking seat. Coupling achieved with a coupling unit allows the picking robotic arm unit to be driven to move by the machining unit.

Abstract: In an embodiment, an insert includes an upper surface including a corner part, a lower surface, a side surface, and a cutting edge. The side surface is between the upper surface and the lower surface. The cutting edge is at least at a part of a first region in which the upper surface intersects with the side surface. The cutting edge includes a first cutting edge at the corner part, a second cutting edge, a third cutting edge, and a fourth cutting edge. The second cutting edge is next to the first cutting edge, and also next to the third cutting edge. The third and fourth cutting edges: each have a convex curvilinear shape with first and second radii of curvature, respectively; and extend downward and upward, respectively, in a side view as going farther from the second cutting edge. The second radius smaller than the first radius.

Abstract: Ribs for working an aircraft component having an aircraft component surface, fixtures for the same, and methods for the same, are provided herein. The rib includes a rib surface configured to receive the aircraft component and to be in abutting contact with at least a portion of the aircraft component surface. The rib further includes an extension extending away from the rib and configured to couple to a worksurface. Orientation of the rib is configured to be adjustable relative to the worksurface for improving working of the aircraft component. The fixture includes a mount defining an aperture and configured to be coupled to the worksurface and the rib. The method includes providing the fixture including the rib. The method further includes coupling the extension to a worksurface. The method further includes disposing the aircraft component on the rib surface.

Abstract: One aspect of the invention provides a cutting tool used for peripheral cutting operations, comprising: a plurality of peripheral cutting edges, and a plurality of flutes disposed between the peripheral cutting edges, wherein each of the flutes includes at least one surface, and at least one depression recessed into the at least one flute surface, wherein each of the depressions defines a depression interior configured to trap cooling liquid during operation of the cutting tool, and wherein at least one of the depressions is dimensioned and disposed to enhance heat dissipation at least one of the peripheral cutting edges.

Abstract: An apparatus includes a spindle, a pecking mechanism, and a clutch mechanism coupled to the pecking mechanism. The spindle includes a drill tool and the spindle is configured to be fed in a first direction during a drilling operation. The pecking mechanism is configured to retract the drill periodically during the drilling operation. The clutch mechanism is configured to selectively engage the pecking mechanism during a portion of the drilling operation. The clutch mechanism is configured to constrain the rotation of the washer such that the spindle drill is retracted a predefined distance periodically.

Abstract: An adjustable pipe center; the lathe-center may be useful for supporting the end of a rotating workpiece having a hollow along an axis upon which the workpiece is rotating. The adjustable pipe center includes a shaft, a center-head having keyways, a plurality of bearing-fins, and a plurality of power-screws. The center-head is fixed to the shaft and is able to fit within the hollow of the workpiece. The plurality of bearing-fins is able to fit and slide within the keyways, with each having a bearing-surface for contacting the workpiece. The bearing-surface is disposed at an angle to the shaft-axis between zero and ninety degrees. The bearing-fins may be translated, functioning as an inclined plane to displace a workpiece resting against it. When the bearing-fins are collectively translated as desired, it may laterally adjust the position of the workpiece-axis relative to the shaft-axis.

Abstract: An assembly of a tool and a tool holder may include the tool, which may have an elongated body with a socket, and the tool holder, which may have a body with a first bore configured to receive at least a portion of the elongated body, and a second bore substantially transverse to the first bore. The assembly may also have an impinging member including a body having an end with a radial surface. In an assembled state, a portion of the elongated body of the tool may be positioned within the first bore of the body of the tool such that the socket and the second bore may be substantially aligned, and the body of the impinging member may be positioned within the second bore with the radial surface pressed against the elongated body in the socket at a predetermined torque.

Abstract: A cutting tool for forming a finished part from a rotating workpiece includes a first cutting edge extending from a first end of the cutting tool, a second cutting edge extending from a second end of the cutting tool, and a shaping edge disposed between the first cutting edge and the second cutting edge. The first cutting edge is operable to remove a trailing end of the rotating workpiece and the second cutting edge is operable to remove a working portion of the rotating workpiece disposed between the trailing end and a leading end. The shaping edge is operable to shape the working portion of the rotating workpiece by advancing the cutting tool into the rotating workpiece until the first cutting edge removes the trailing end of the rotating workpiece and the second cutting edge removes the working portion of the rotating workpiece to form the finished part.

Abstract: An insert includes a first surface having a corner portion, a second surface, a third surface, and a cutting edge. The cutting edge is provided with a first cutting edge located on the corner portion and a second cutting edge adjacent to the first cutting edge, and the third surface is provided with a first portion located along the first cutting edge and a second portion located along the second cutting edge. the second portion includes a first region having a first end portion and a second end portion, and a second region having a third end portion and a fourth end portion. An inclination angle ?212 at the second end portion is greater than an inclination angle ?211 at the first end portion, and an inclination angle ?222 at the fourth end portion is smaller than an inclination angle ?221 at the third end portion.

Abstract: A tool including a pair of rails is attachable to the inside surface of the skin panel. A housing is pivotally and slidably connected between the pair of rails. The housing is pivotable about a first axis and is slidable along grooves in the pair of rails. The housing has a first end and a second end opposite each other. The tool includes a rod having a third end and a fourth end, the third end attached to and extending from the first end of the housing. The tool also includes a pressure foot attached to the fourth end of the housing. The pressure foot includes a curved ankle integrally formed with a flat flange, the curved ankle curving into the flat flange. The pressure foot is configured to apply pressure along a portion of the inside surface of the skin panel when the housing is in a vertical position.

Abstract: The present invention provides a cutting method comprising a cutting step of cutting a workpiece material with a cutting tool to thereby form a through-groove in the workpiece material, wherein in the cutting step, the through-groove is formed in the workpiece material by cutting the workpiece material with the cutting tool while contacting a cut-assisting lubricant with the contact portion of the cutting tool with the workpiece material and/or the contact portion of the workpiece material with the cutting tool, and the workpiece material comprises a fiber reinforced composite material.