Abstract: A coated cutting tool having a substrate and a surface coating, wherein the coating includes a Ti(C,N) layer of at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.2 ?m and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer is in average 0.50-0.65.

Abstract: A guide pad for a cutting tool includes a sliding surface, which is convexly curved in a plane perpendicular to a longitudinal axis of the guide pad. A channel-shaped recess is formed in the sliding surface that extends in the direction of the longitudinal axis of the guide pad and terminates before reaching an end of the sliding surface at an end of the guide pad.

Abstract: A method and device for manufacturing a cutting insert green body, the method includes the step of providing a compression tool having an upper and lower die, and an upper and lower punch. The upper die defines a punch tunnel in which the upper punch slides, and the lower die defines a punch tunnel in which the lower punch slides. The dies define a die cavity to accommodate a powder to be compressed by action of the respective punches to form the green body. Powder in the die cavity is compressed by forwarding the upper punch through the punch tunnel of the upper die and a predetermined distance L through the opening of the lower die. The upper die is displaced relative to the opening of the lower die and the upper punch is removed from the lower die to move the green body out of the lower die through the opening thereof.

Abstract: A coated cutting tool includes a substrate having a rake side, a clearance side and a cutting edge and a coating comprising a first layer and a second layer. The second layer has a sandwich structure of an inner layer, an intermediate layer and an outer layer, wherein the inner layer is exposed through an opening in the outer layer, the opening extending over at least a portion of the width of the cutting edge. Thereby, a double layer is provided in critical areas, whereas a single layer is provided in other areas. The double oxide layer is an aluminum oxide layer. A method for manufacturing the coated cutting tool is also provided.

Abstract: A bainitic steel comprising, in weight % (wt %) C: 0.16-0.23, Si: 0.8-1.0, Mo: 0.67-0.9, Cr: 1.10-1.30, V: 0.18-0.4, Ni: 1.60-2.0, Mn: 0.65-0.9, P: 50.020, S: 50.02, Cu: <0.20, N: 0.005-0.012, balance Fe and unavoidable impurities.

Abstract: A coated cutting tool includes a substrate and a surface coating, wherein the coating is a Ti(C,N,O) layer comprising at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.4 ?m and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer being on average 0.50-0.65. A method for manufacturing the coated cutting tool includes depositing the MTCVD Ti(C,N) layer.

Abstract: A rotary cutting apparatus including a frame, a die roll rotatably attached to the frame including a cutting member, wherein the cutting member includes at least one tensioning device and the tensioning device includes a body and a tip portion adjacent to the body, the tensioning device having an unsymmetrical profile.

Abstract: A gyratory crusher outer crushing shell and a crushing shell assembly. The crushing shell includes a radially inward facing crushing surface and a radially outward facing mount surface provided with radially outward projecting contact regions to contact the topshell or an intermediate spacer ring. A ledge or groove providing an abutment face is positioned at or axially above the upper contact region to positionally support a sealing ring for positioning between the crushing shell and the topshell or intermediate spacer ring.

Abstract: A turning tool holder includes a tool body, a cutting tool insert, and a shim. A coolant conduit system extends through the turning tool holder, a first portion of the coolant conduit system extending through the tool body and an end portion of the coolant conduit system extending through the shim. The end portion of the coolant conduit system includes a through hole extending from a first surface to an opposite second surface of the shim. The end portion has a coolant outlet opening at the second surface, the coolant outlet opening being formed by the shim alone. A jet of coolant from the coolant outlet opening may be directed towards a space expected to have a cutting zone of a workpiece. Further a cutting tool insert arranged to be used in a turning tool holder is disclosed.

Abstract: A connector, an associated dynamic testing system and method for testing rock bolts or rock anchors in situ. The connector is attached to a rock bolt/anchor and supports a hanging load via a shaft. The connector has a body of two halves retaining upper first and lower second connectors having respective curved surfaces. Each of the two halves has a curved inner surface allowing limited relative rotational movement of the first and second connectors relative to the two halves when a load is applied. A load cell and accelerometer register the load applied to the rock bolt/anchor through the connector and any resulting movement of the rock bolt/anchor.

Abstract: A device for manufacturing a cutting insert green body by compacting a powder includes a first punch, a second punch having a punch edge that has a curvature around the circumference of the punch edge that is at least partially non-perpendicular with a pressing axis of the device, a first die part, and a second die part. When the first and second die parts are joined together when filling the die with powder, one of the first and second die parts is on top of the other and, when the device is in a position ready for filling of powder into the die, the device presents a cavity defined by the lower die part, a punch being introduced into the lower and upper die part. An opening in an upper end surface of the upper die part enables filling of the powder into the cavity.

Abstract: A hydraulic system for controlling the position of a movable jaw of a jaw crusher includes a hydraulic cylinder having a piston with a piston rod for positioning the movable jaw. The hydraulic cylinder has a bore side space for containing a hydraulic fluid taking up crushing forces exerted by the movable jaw on the piston rod, and an annular side space containing a hydraulic fluid pressing the piston against hydraulic fluid of the bore side space. The hydraulic system further includes an annular side space accumulator having a fluid compartment, which is in fluid contact with the annular side space, and a gas compartment containing a pressurized gas applying a pressure on the hydraulic fluid in the annular side space.

Abstract: A crusher hammer lifting device facilitates raising and lowering of a hammer mountable at a rotor of a horizontal shaft impact crusher (HSi-crusher). The device includes a main body, a mount engager for attachment to an auxiliary lifting tool and a hammer attachment for releasably mounting the hammer in a rotatable manner at the device.

Abstract: A bolting drill rig arranged to be mountable at a mobile mining machine. The drill rig includes a main frame mounting an axially movable drive unit and head to press against the roof or wall of the mine. A drill rod manipulator assembly is mounted at the main frame to one side of the drive unit and configured to transport a drill rod between a drilling position and a rod storage position.

Abstract: Herein a cutting insert for a power skiving tool is disclosed. The cutting insert includes an insert body having a bottom surface extending in a first plane, and a body axis extending substantially in parallel with the first plane. The insert body has a cutting end portion and opposite thereto, an abutment surface. The abutment surface extends substantially perpendicularly to the body axis and to the first plane. The cutting end portion is provided with a first and a second cutting edge, the first cutting edge and the second cutting edge being directed in a same cutting direction. Herein, further a power skiving tool including such cutting inserts is disclosed.

Abstract: A cartridge valve is arranged to control a flow of a fluid within a fluid supply network of a cutting machine such as mining or drilling apparatus. The valve includes a main body that defines an internal chamber to accommodate a reciprocating piston and plunger operative to open and close the valve by axial sliding movement. An intermediate region of the chamber provides a fluid tight partition between a working fluid network and a supply fluid network.

Abstract: Cutting insert cartridge for chip removing machining tools has an axial adjustment system threadedly engaged with a cartridge body and a tool body. The axial adjustment system includes a differential screw in threaded engagement with the tool body either directly, for example by threaded engagement with a threaded opening in the tool body, or indirectly, for example by threaded engagement with a cross dowel fastener slidably positioned in an opening in the tool body. Actuation portion positioned axially between threaded end portions of the differential screw has an engagement feature on an outer surface to be driven, e.g., with a tool or by hand, to rotate the differential screw and adjust the axial position of the cartridge. The spaced apart relationship improves access to the actuation portion and engagement feature for rotation of the differential screw. Chip removing machining tools with such cartridges and methods of machining are also disclosed.

Abstract: A guide pad for a cutting tool is formed with at least one sliding surface, which is convexly curved in a plane perpendicular to a longitudinal axis of the guide pad. Each sliding surface includes two convexly curved sliding sub-surfaces separated by a fluid conveying formation having a longitudinal extension in a direction in parallel to the longitudinal axis. The fluid conveying formation is planar or has a convexly curved shape in a direction perpendicular to the longitudinal axis having a larger radius of curvature than the radius of the sliding surface.

Abstract: A tool for machining work pieces is disclosed. In order to provide a tool which exhibits only very small vibrations during operation, the tool body of the tool has a cavity in which a multiplicity of hollow structural elements having an outer closed shell, within which at least one solid particle or a hollow body is arranged in a freely movable manner, are accommodated.