An intelligent tungsten carbide cutter may include a shank, at least a cutting portion, and a sensor. The shank made of tungsten steel comprises a first end, a second end, and at least a first connecting portion, and the first connecting portion is located adjacent to the second end of the shank. The shank and the cutting portion are thermally connected through high frequency oscillation heating method, and the cutting portion is secured on the first connecting portion of the shank. An accommodating channel axially penetrates through a center portion of the first end of the shank and extends toward the second end, and the sensor is installed in the accommodating channel so as to be positioned close to the cutting portion, thereby achieving the direct and accurate sensing.

A portable rail weld milling machine apparatus comprises a support structure comprising a milling tool, wherein the milling tool comprises a milling head for milling a railroad rail by moving the milling tool in a first direction longitudinal to parallel railroad rails, in a second direction lateral to the parallel railroad rails, and a third direction vertically.

A portable rail weld milling machine apparatus comprises a metal frame that incorporates a motor with a rotary carbide tool that is able to lock to a rail or rails for stability. The apparatus houses the required guides and motors to maneuver the tool on a plurality of axes with computer numerical control (CNC). The CNC programming is able to control the carbide tool such that the welded rail can be milled to proper profile on the entire running surface, including the top, the field side, and the gauge side of the ball of the rail.

A portable rail weld milling machine apparatus comprises a metal frame that incorporates a motor with a rotary carbide tool that is able to lock to a rail or rails for stability. The apparatus houses the required guides and motors to maneuver the tool on a plurality of axes with computer numerical control (CNC). The CNC programming is able to control the carbide tool such that the welded rail can be milled to proper profile on the entire running surface, including the top, the field side, and the gauge side of the ball of the rail.

A guide 2 for a burr cutter 34, the guide 2 comprising: a body portion 4 having first and second guide surfaces 12a, 12b which are spaced from one another to define a slot 14 between the first and second guide surfaces 12a, 12b; a bearing 32a, 32b for rotatably mounting the body portion 4 to a shank 38 of the burr cutter 34 with a cutting head 36 of the burr cutter 34 adjacent the slot 14; wherein the first and second guide surfaces 12a, 12b and the bearing 32a, 32b are positioned relative to one another such that the first and second guide surfaces 12a, 12b are tangential to the cutting head 36 of the burr cutter 34.

The present invention relates to a multi-material rotary cutting tool (1) and a method for manufacturing such a tool that includes at least one continuous or substantially continuous cutting edge (8, 9) made of at least two different successive materials. The extremity or top (10) of the tool is a point off-centered in relation to the axis of rotation (5) of the tool.

A portable rail weld milling machine apparatus comprises a metal frame that incorporates a motor with a rotary carbide tool that is able to lock to a rail or rails for stability. The apparatus houses the required guides and motors to maneuver the tool on a plurality of axes with computer numerical control (CNC). The CNC programming is able to control the carbide tool such that the welded rail can be milled to proper profile on the entire running surface, including the top, the field side, and the gauge side of the ball of the rail.

The present invention relates to a rotary cutting instrument, in particular of the bur type, intended for chirurgical or dental use and comprising an active cutting part and a handle. Said active part is made of a metal carbide and the handle is made of a nickel-titanium alloy. The instrument further comprises an intermediate part made of stainless steel placed between the active part and the handle and metallurgically connected to said active part and to said handle.