Abstract: An indexable cutting insert for milling of a root between two cogs of a cog wheel includes a top surface forming a chip surface, a bottom surface, a side surface forming a clearance surface, a first and a second curved cutting edge formed at an intersection between the top surface and the side surface for milling of the root between the two cogs. The bottom surface includes a first planar abutment section and a second planar abutment section. A first groove extends in the first abutment section and a second groove extends in the second abutment section, each along an axis parallel to a virtual line connecting the apexes of the first and second cutting edges. A first and a second stop section extend across the virtual line, wherein the first stop section protrudes above the first abutment section and the second stop section protrudes above the second abutment section.

Abstract: A tangential cutting insert for a milling tool includes a cutting face that extends along a longitudinal axis and along a transversal axis, and a cutting edge that extends at the periphery of the cutting face. The cutting face has a central portion including first and second central cutting edges extending along the longitudinal axis and on opposite sides of the cutting face, and an outwardly extending end portion having at least three end cutting edges. A first of the at least two cutting edges is inclined relative to the longitudinal axis and a second of the at least two end cutting edges is inclined relative to the transversal axis at an angle from 10° to 35° respectively, for example, 20° to 30° or 25°.

Abstract: A control valve for controlling flow of a pressure fluid in a breaking device includes a sleeve-like control valve having at least one opening enabling flow of the pressure fluid through the opening. The at least one opening includes at least one wall, at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through the middle point of the cross section of the opening on the outer circumference of the control valve, such that the pressure fluid flowing through the opening may be arranged to rotate the control valve about the longitudinal axis of the control valve.

Abstract: A hose release device allowing a length change of a pressure medium hose caused by expansion under high pressure is provided. A method of managing hoses and executing a deflection to the hose so that extra length is reserved in the system incorporates such a hose release device.

Abstract: A pipe coupling includes a first and second connected tubular element forming an elongated tube and being connected by a connection arrangement that biases the first tubular element against the second tubular. An annular sealing element is provided between and overlapping opposed end portions of the elements. The annular sealing element has a generally T-shaped cross-section and includes a first portion that forms a stem of the T-shaped cross section and extends in a radial direction and defines the outer periphery thereof, and a second portion formed by two opposing flanges that form the cross-bar of the T-shaped cross section and define the inner periphery thereof. At least one of the flanges presents a rounded bulge forming an outer peripheral surface of one flange. The bulge is sealed with an inner periphery of one of the tubular elements and extends continuously around the circumference of the annular sealing element.

Abstract: An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body.

Abstract: A deep hole drill head support pad whose edge chamfers are formed in a continuous grinding operation so that there are no discontinuities in the angled side surface leading up to the outer surface thereof. A method of manufacturing the support pad includes generating a virtual guide metric including a curved travel path for a grinding surface around a support pad blank, and a plurality of control surfaces intersecting with the curved path at separate locations along its length, each control surface defining an angle of orientation of the grinding surface. A CNC grinding machine can interpret the virtual guide metric to change the angle of orientation of a grinding surface relative to a support pad blank as it moves between adjacent control surfaces in a continuous manner.

Abstract: A roll for hot-rolling includes a body, wherein at least a part of an envelope surface of the body is made of a high speed steel that with reference to its chemical composition consists of the following elements, in weight %: 1-3 Carbon (C), 3-6 Chromium (Cr), 4.5-7 Molybdenum (Mo), 6-15 Tungsten (W), 3-14 Vanadium (V), 0-10 Cobalt (Co), 0-3 Niobium (Nb), 0-0.5 Nitrogen (N), 0.4-1 Yttrium (Y), eventualy distributed in the powder, and remainder iron (Fe) and unavoidable impurities, wherein contents of molybdenum (Mo) and tungsten (W) satisfy the formula Mo+0.5W=2.0-10.0 weight %.

Abstract: A coated cutting tool for chip forming machining of metals includes a substrate having a surface coated with a chemical vapour deposition (CVD) coating. The coating has a layer of ?-Al2O3, wherein the ?-Al2O3 layer exhibits a texture coefficient TC(0 0 12)?7.2 and wherein the ratio of I(0 0 12)/I(0 1 14) is ?1.

Abstract: A breaking device includes a frame, an impact device having a pressure chamber with a rear pressure chamber and a front pressure chamber. The breaking device further includes a first low pressure port at the rear pressure chamber, a first low pressure channel and a first low pressure accumulator connected to the first low pressure channel. The breaking device further includes a second low pressure port at the rear pressure chamber substantially opposite to the first low pressure port, second low pressure channel and a second low pressure accumulator connected to the second low pressure channel. The first low pressure accumulator and the second low pressure accumulator are arranged at the outer circumference of the frame of the breaking device at different positions in the axial direction of the breaking device.

Abstract: A lockable overshot assembly for use in a wireline spearhead system for lowering and retrieving inner tube assemblies and other tools and equipment from a downhole location includes a pair of lifting dogs pivotally mounted to an overshot head on the lockable overshot assembly and configured for latching a spearhead. A locking arrangement is mounted into the elongated body and engagable within the lifting dogs, such that in a locked state the lifting dogs are in latched position and in an unlocked state, allows the lifting dogs to move to the release position. The locking arrangement is a pin, which can be moved laterally to be between the latching dogs to prevent them moving to the release position.

Abstract: A milling tool has a basic body rotatable about a center axis, and including an outside, which includes a pair of opposite front and back sides, as well as a peripheral envelope surface. The body is equipped with a plurality of replaceable cutting inserts. The basic body includes an inner hollow space having an internal limiting surface, in which there collectively mouth a plurality of bores. The bores also mouth in the outside. Each cutting insert is mounted on an outer end of an ejector, which is rectilinearly movable in the individual bore and has an inner end accessible from the hollow space, and which interacts with a compressible force generator, to pull the same into the bore. By mounting the cutting inserts on ejectors, which simultaneously are accessible from a common hollow space, the cutting inserts can be replaced fast and easily, and possibly also be indexed.

Abstract: A power skiving tool includes a basic body, which is equipped with a plurality of replaceable cutting inserts, by means of which chips can be carved or peeled out of a workpiece with the purpose of forming, for instance, teeth. The individual cutting insert is formed with only one cutting edge) and has a rear end in the form of a shoulder surface, against which an adjusting mechanism is pressed for the fine adjustment of the radial position of the cutting insert in relation to the basic body. On the underside of the cutting insert, there is in addition a control means, e.g. a serration connecting surface, which interacts with the corresponding control means in the appurtenant seat in the basic body. In addition, the invention concerns a power skiving cutting insert as such.

Abstract: A heating apparatus, which can stably fix a heater and be easily produced, includes a heat insulating material and an electric heater embedded in the surface or near the surface of the heat insulating material. At least one hook extends from the electric heater into the heat insulating material. The heat insulating material is formed of ceramic fibers and a binder binding the ceramic fibers, and is integrally molded with the electric heater having the hook.

Abstract: An indexable cutting insert for a milling tool includes an upper side defining an upper extension plane and a lower side defining a lower extension plane parallel to the upper extension plane. A side surface connects the upper side and the lower side, the side surface including a plurality of upper main clearance surfaces and secondary clearance surfaces. At least six identical and alternately usable upper cutting edges extend around the upper side. Each cutting edge has a chip removing main cutting edge portion and at least one secondary cutting edge portion. The main cutting edge portion is formed in a transition between the upper side and one of the upper main clearance surfaces. The secondary cutting edge portion is formed in a transition between the upper side and one of the secondary clearance surfaces between two main cutting edge portions. The upper main clearance surfaces are formed at an obtuse inner angle ? with respect to the upper extension plane as seen in side elevation view.

Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.

Abstract: An elongate capping is arranged to support cross-tensioned or pre-tensioned screening media at a screen deck. The capping includes a pair of arms to grip a carrier beam of the screen deck and a head attached to the arms via a neck. The head includes flexible widthwise extending flanges that are configured to bend and compress towards the arms to support the screening media when mounted on the head under tension.