Systems and methods are provided for providing scatter/gather data processing. In accordance with an embodiment, a such a system can include a cluster of one or more high performance computing systems, each including one or more processors and a high performance memory. The cluster communicates over an InfiniBand network. The system can also include a middleware environment, executing on the cluster, that includes one or more application server instances. The system can further include a plurality of muxers. Each application server instance includes at least one muxer, and each muxer is operable to collect data from a plurality of locations in the high performance memory, and transfer the data in bulk.

A rotary cutting tool has a tool holder and a cutting portion releasably attached to the tool holder. The tool holder includes a mounting portion designed to be attached to a spindle. The rotary cutting tool also has a fluid channel and an energy harvesting arrangement which includes a turbine located in the fluid channel. The fluid channel opens out to a channel inlet opening, for the supply of fluid, located at the mounting portion and a channel outlet opening in fluid communication with the channel inlet opening.

Electric spindle for numerical control machines structured to lock and rotationally drive a tool about a predetermined reference axis locally coinciding with the longitudinal axis of the tool; the electric spindle comprising: an outer structural casing that is structured to be rigidly attachable to a generic numerical control machine; an electric motor that is housed within the structural casing and is provided with a drive shaft, which projects/emerges with its front end outside the structural casing while remaining locally coaxial to the reference axis of the electric spindle; a rotating thrust-bearing bushing or sleeve, which is fitted in an axially rotatable manner on the front end of the drive shaft via interposition of a first set of annular rolling bearings, and is maintained coaxial to the reference axis of the electric spindle by a second set of annular rolling bearings, which are interposed between the rotating bushing or sleeve and the structural casing; and at least one disassemblable tool-holder head that is structured to be attachable, in a rigid and stable though easily releasable manner, to the front end of the drive shaft, is structured so as to accommodate and retain, in a rigid and stable though easily releasable manner, the shank of a generic tool for numerical control machines, and is provided with a peripheral crown that is dimensioned/structured to stably abut, selectively and alternatively, on the front end of the drive shaft or on the rotating thrust-bearing bushing or sleeve.

A composite milling cutter includes a rotatable adapter plate and ring cutter. The adapter plate has a raised key portion with a peripheral side wall having a plurality of curved abutment surfaces symmetrically located on an inscribed circle, IC.sub.AP defined by the raised key portion. The cutter ring has an opening with a peripheral side wall for receiving the raised key portion of the adapter plate. The peripheral side wall has a plurality of curved abutment surfaces complimentary in shape to the curved abutment surfaces of the adapter plate and symmetrically located on an inscribed circle, IC.sub.CR, defined by the opening. A tolerance between the abutment surfaces of the peripheral side wall of the raised key portion and the abutment surfaces of the peripheral wall of the opening is such that run-out is minimized.

An electric tool may include a tubular housing, a motor disposed within the housing, and a tool holder rotatably driven by the motor and capable of holding an end tool. A shoe may be supported by the housing and may determine a protruding length of the end tool from one end of the housing. A battery mount portion may be disposed at the other end of the housing. The battery may be mounted to the battery mount portion as the battery is slid relative to the battery mount portion along a direction intersecting the extending direction of the housing.

A live tool system having a live tool and a collar surrounding a rotating shaft or a rotating cutting tool of the live tool. The collar houses at least one sensor capable of monitoring an operating condition proximate to the cutting tool during a cutting operation. Example operating conditions including temperature and vibration. The system also includes a wireless transmitter in communication with the at least one sensor for transmitting a signal for use by a machining center controller.

An electric tool may include a tubular housing, a motor disposed within the housing, and a tool holder rotatably driven by the motor and capable of holding an end tool. A shoe may be supported by the housing and may determine a protruding length of the end tool from one end of the housing. A battery mount portion may be disposed at the other end of the housing. The battery may be mounted to the battery mount portion as the battery is slid relative to the battery mount portion along a direction intersecting the extending direction of the housing.

In an interface arrangement between a first component group supporting a tool holder and a second component group supporting a machining element in a central opening for releasably accommodating the first component group, a shift lever element provided with engagement members is disposed rotatably on the second component group and provided with engagement and release elements for releasably retaining the first component group in the central opening of the second component group so as to permit a rapid exchange of the first component group by another group with a new tool.

In one aspect, tool holders employing axial sleeves and dampening elements are described herein. Tool holders described herein define a central longitudinal axis and comprise a tool holder body having a connector portion and a holder portion. The connector portion is structured to engage a rotary machine and the holder portion is disposed opposite the connector portion and has an inner diameter surface comprising a plurality of axial grooves. Tool holders described herein further comprise a tool receiver structured to receive at least a portion of a cutting tool, the tool receiver having an outer diameter surface comprising a plurality of axial grooves. The tool receiver is mounted in the holder portion so as to align the axial grooves of the inner and outer diameter surfaces and define axial sleeves filled with dampening elements.

A collet adaptor (10) including a body (11, 12) having forward and rear ends and an axial bore (17) extending through the forward and rear ends. A drawbar (13) disposed at least partly within the bore (17) for connection to a collet (14). The drawbar (13) is secured within the bore (17) and a biasing arrangement (42) acts on the drawbar (13) in a direction tending to shift the drawbar (13) rearwardly within the bore (17). The drawbar (13) is displaceable within the bore (17) against the biasing influence of the biasing arrangement (42) to shift forwardly within the bore (17).