A cutting tool with interconnected arms that increases the stiffness to weight ratio of the cutting tool is described. The principles of the invention can be applied to any cutting tool, such as a reamer, a milling cutter, a slotting cutter, and the like. In one example, a cutting ring includes a cutting head assembly with a leading arm, a trailing arm, and a cutting head supported by the leading arm and the trailing arm. The trailing arm interconnects with the leading arm of an adjacent cutting head assembly, and the leading arm interconnects with a trailing arm of another adjacent cutting head assembly. As a result of this interconnection of arms, the axial, radial and tangential stiffness to weight ratio of the cutting tool is increased. A support member may be included to further increase the stiffness to weight ratio.

A tool head is for machining edges of a workpiece and includes a first tool section with first blades and a second tool section with second blades. The second blades are positioned between the first blades when seen in the circumferential direction. The second section is movable relative to the first section in the direction of the longitudinal axis between a passive and active position. The second blades are axially recessed relative to the first blades in the passive position and project axially outwards between the first blades in the active position. The tool head has a pressure switching mechanism for moving the second tool section between the passive and active position. In a tool system, the tool head and an actuation element can be moved axially relative to each other. The at least one actuation surface and the actuation element are configured to be axially pressed towards each other.

A tool is for inside chip-separating processing of a tube. The tool has a housing which is rotatable around a center axis of the tool, a blade holder which is rotatable around an axis of rotation, there being a plurality of blades positioned along the periphery of the blade holder, and a guide element which is arranged to guide the blade holder between an active position and a passive position. Each of the blades has a surrounding cutting edge which forms a working plane which is arranged perpendicularly to the centre axis of the tool. The blades are arranged for alternating contact with the tube when the blade holder is rotating and is in the active position.

The invention relates to a cutting tool having at least one cavity arranged in the cutting tool, spaced apart from an outer contour of the cutting tool by a wear layer, wherein a thickness of the wear layer corresponds to a wear limit of the cutting tool, wherein an indicator substance is arranged in the cavity.

A coated cutting tool and a process for the production thereof is provided. The coated cutting tool includes a substrate and a hard material coating, the substrate being selected from cemented carbide, cermet, ceramics, cubic boron nitride, polycrystalline diamond or high-speed steel. The hard material coating includes a (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers. The layer stack has an overall atomic ratio of Ti:Al within the (Ti,Al)N layer stack within the range from 0.33:0.67 to 0.67:0.33, a total thickness of the (Ti,Al)N layer stack within the range from 1 μm to 20 μm, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers having a thickness within the range from 0.5 nm to 50 nm, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers being different in respect of the atomic ratio Ti:Al than an immediately adjacent (Ti,Al)N sub-layer, and other characteristics.

A modular additive manufactured tool assembly includes a perishable tool and a tool holder coupled to the perishable tool. The tool assembly is configured to be coupled to a machine spindle. The tool assembly also includes a spindle connection coupled to the tool holder. The spindle connection is configured to be coupled to a machine spindle. Each of the tool holder and the perishable tool includes a perishable material. Each of the tool holder and the perishable tool is manufactured using an additive manufacturing process.

A tool for the rotary and cutting machining of workpieces includes a plurality of blades arranged on the tool body and arranged in blade arrangements, and having a securing element that secures the blade arrangements to the tool body so that the blades cannot detach from the tool body during operation. The tool body is produced from plastic. The blades are incorporated into the tool body and the securing element provides a securing strip that is incorporated into the tool body and partially encloses the blade arrangements.

The present invention relates to a method for producing a fiber-plastics-composite tool component (1) having a matrix system (6) that has embedded fibers, PBO fibers (4) being selected as the fiber component and a thermosetting plastics matrix (8) being used as the matrix component of the matrix system (6) (S1), which thermosetting plastics matrix has such adhesion to the PBO fibers (4) in the hardened fiber-plastics composite (2) that the coefficient of thermal expansion of the PBO fibers (4) is imparted to the matrix system (6). The invention also relates to a load-bearing tool component (1) of a chip-removing tool in the design of a fiber-plastics-composite press-molded part, the load-bearing tool component (1) comprising a matrix system (6) that has a thermosetting matrix component (8) and comprising PBO fibers (4) embedded into said thermosetting matrix component.

A rotating tool according to an aspect of the present disclosure is a rotating tool used in a state held by a tool holder, and the rotating tool includes a shaft portion having an end attached to the tool holder, a blade attaching portion or a blade portion provided at an end of the shaft portion opposite to the end, and a plurality of sensors attached to the shaft portion, and the plurality of sensors include an acceleration sensor and a strain sensor.

The present invention relates to a tool and a method for creating back tapers at an internal or external toothing of a gear. The tool rotates during use about a tool axis of rotation includes a tool shaft extending along the tool axis of rotation, a fastening section for fastening the tool to a tool drive of a machine tool, the fastening section formed at an end of the tool shaft, and at least one cutting blade, which is arranged at a fastening position provided at the circumference of the tool shaft. The tool according to the invention and the method according to the invention enable with simple means the creation of geometrically precisely shaped back tapers at toothings without the need for the use of specially shaped cutting inserts or a change of machine tools proven in practice for the creation of back tapers. This is achieved according to the invention in that the diameter of the tool shaft measured in a plane oriented normal to the tool axis of rotation increases starting from the diameter, which the tool shaft has at the fastening position of the cutting blade, in a direction directed towards the fastening section.