Provided is a mobile machining system for a turning machining of inner surfaces of hollow-cylindrical components, in particular for machining valve seats. The machining system includes a second drive train and the third drive train in each case which preferably have a gear mechanism, in particular a planetary gear mechanism, which is arranged between the respective motor and the associated gearwheel which projects outward from the rotational part. This leads to a simple, inexpensive and space-saving construction.

Provided is a mobile machining system for a turning machining of inner surfaces of hollow-cylindrical components, in particular for machining valve seats. The machining system includes a second drive train and the third drive train in each case which preferably have a gear mechanism, in particular a planetary gear mechanism, which is arranged between the respective motor and the associated gearwheel which projects outward from the rotational part. This leads to a simple, inexpensive and space-saving construction.

A tool for a boring machine includes an elongated elongated body extending longitudinally from a proximal end to a distal end, the distal end being shaped to receive a cutting tip, and a cavity inside the body. The tool includes a lattice provided within the cavity and a powder provided in the cavity with the lattice.

A boring bar apparatus comprising a boring bar having at least one tool aperture formed therein. An axial translation mechanism for axially indexing the boring bar. The axial translation mechanism comprises a feed screw assembly having a threaded section, a rotational converter mechanism coupling the boring bar to the feed screw assembly for incrementally rotating the feed screw assembly, and a feed coupling having a first end engaging with the feed screw assembly and a second end engaging with the boring bar. The first end of the feed coupling having a threaded half nut section which, in a first position, engages with the feed screw assembly to facilitate axially indexing of the boring bar, and, in a second position, disengages from the feed screw assembly to facilitate moving both the feed coupling and the boring bar relative to the feed screw assembly to assist with repositioning of the boring bar.

A boring bar apparatus comprising a boring bar having at least one tool aperture formed therein. An axial translation mechanism for axially indexing the boring bar. The axial translation mechanism comprises a feed screw assembly having a threaded section, a rotational converter mechanism coupling the boring bar to the feed screw assembly for incrementally rotating the feed screw assembly, and a feed coupling having a first end engaging with the feed screw assembly and a second end engaging with the boring bar. The first end of the feed coupling having a threaded half nut section which, in a first position, engages with the feed screw assembly to facilitate axially indexing of the boring bar, and, in a second position, disengages from the feed screw assembly to facilitate moving both the feed coupling and the boring bar relative to the feed screw assembly to assist with repositioning of the boring bar.

A grooving blade for chip removing machining includes a cutting insert pocket and a damping arrangement fixed to the blade. The damping arrangement projects laterally with respect to at least one major surface of the blade. A grooving tool and a method of grooving a metallic workpiece are also disclosed.

An axle boring assembly includes a portable power head or drive unit, a bearing pack to which the drive unit is attached, an adjusting base to which the bearing pack is adjustably secured and a mounting assembly which fits over a motor vehicle axle and to which the adjusting base is secured. The mounting assembly comprises a first section having axially spaced apart front and rear clamps and a substantially identical second section with matching spaced apart front and rear clamps. Threaded fasteners extend between the front and rear clamps and may be rotated to secure the mounting assembly about the end of the axle. Each clamp includes jaws which contact the axle and which may be selected from sets of various sizes and configurations to ensure accurate and suitable engagement of the axle.

An axle boring assembly includes a portable power head or drive unit, a bearing pack to which the drive unit is attached, an adjusting base to which the bearing pack is adjustably secured and a mounting assembly which fits over a motor vehicle axle and to which the adjusting base is secured. The mounting assembly comprises a first section having axially spaced apart front and rear clamps and a substantially identical second section with matching spaced apart front and rear clamps. Threaded fasteners extend between the front and rear clamps and may be rotated to secure the mounting assembly about the end of the axle. Each clamp includes jaws which contact the axle and which may be selected from sets of various sizes and configurations to ensure accurate and suitable engagement of the axle.

The invention relates to a machining tool (2) for processing a bore in a workpiece, in particular for simultaneous processing of a plurality of bores distanced from one another by a predefined distance, said machining tool having a cutting body (8) extending in the direction of a tool longitudinal axis (4) and having at least one cutting element (12) arranged circumferentially, and a guide body (10), which adjoins the cutting body (8) in the direction of the tool longitudinal axis (4), is fastened to the cutting body (8) and has at least one circumferentially arranged guide element (20). The guide body (10) is free of cutting elements (12) and the guide body (10) is designed to exert a preload force such that, during use, the at least one guide element (20) is preloaded against a bearing for the guide body (10).

The invention relates to a cutting tool comprising a main part that can be rotationally driven about a rotational axis, at least one cutting insert holder mounted on the main part such that it can be radially adjusted, and an adjusting device for adjusting the position of the cutting insert holder relative to the main part. The cutting insert holder is mounted in a guide recess in the main part such that it can be moved transversely, preferably radially, to the rotational axis, and the adjusting device has an adjusting element that is arranged such that it can be moved inside the main part transversely to the rotational axis and transversely to the displacement direction of the cutting insert holder and supports the cutting insert holder.