Abstract: A machine tool driven by linear motors along a plurality of axes, and unusually robust and rigid, comprises a bed which defines at least a first axis, at least one column operably connected and supported only at one of its ends by said bed, for its guided movement along the first axis, said at least one column extending away from the bed to define a second axis, at least one saddle mount operably connected and supported by the at least one column, for its guided movement along the second axis, at least one main saddle supported by the saddle mount, for its guided movement along a third axis and supporting a spindle for the movement of a tool, wherein said at least one column comprises a portal structure having a first shoulder opposed to a second shoulder such as to define a window within which the saddle mount is arranged, and wherein, between said opposed shoulders and the saddle mount, linear motors are interposed such as to move the saddle mount along said second axis, producing an effect of attraction of

Abstract: A chip-forming machining tool (10) comprises a path for circulation of a cooling fluid at the inside thereof. The path comprises ducts with walls the surfaces of which extend in a non-linear course. In particular, the non-linear extension of the wall surfaces comprises sequences of grooves and/or ribs.

Abstract: A rotating tool (10) with a body (11, 12) has an inner path (15, 16) for circulation of a cooling fluid. The tool is provided with a cutting edge (13) made of an insert of hard material (14). The path of the cooling fluid comprises at least one cavity (17) in the body/insert interface so that the fluid flowing along the path grazes at least part of the rear surface of the insert before coming out to the outside at an insert extremity.