Abstract: The present disclosure relates to a rotation unit and method for adjusting bearing clearance. The rotation unit includes a shaft that is rotated around its longitudinal axis by a rotating motor. The shaft is supported to a body of the rotation unit by a bearing assembly. The rotation unit further includes an adjusting arrangement for generating pre-load for the bearing assembly and adjusting bearing clearance. The adjusting arrangement includes an axial adjusting space and at least one pair of half-elements arranged between axial adjusting surfaces limiting the adjusting space.

Abstract: The present disclosure relates to a process of manufacturing an article comprising at least one body of a cemented carbide and at least one body of a metal alloy or at least one body of a metal matrix composite and to a product manufactured thereof and wherein the article also comprises an interlayer between the at least one body of a cemented carbide and at least one body of a metal alloy or at least one body of a metal matrix composite in order to prevent deleterious interface phases from forming.

Abstract: A down-the-hole hammer drill bit retaining assembly is arranged to releasably retain a drill bit at a hammer arrangement of a percussion drilling apparatus. The retaining assembly includes a drive sub and a retainer ring. The drive sub has at least one indent to provide a fluid communication pathway for a flushing fluid extending over a radially outward facing surface of the retainer ring and into an internal region of the drive sub in contact with inwardly projecting splines.

Abstract: A transport unit, a material transfer structure and a material transfer unit for a mobile haulage arrangement are arranged for continuously conveying fragmented material in a conveying direction. A mobile haulage arrangement and a method for continuously conveying fragmented material in a conveying direction is also disclosed. The transport unit includes two ground transportation structures and a support frame suitable for fitting a belt of an enclosed belt conveyor thereunder. The ground transportation structures has at least one height adjustment device, wherein the support frame comprises at least one connector, which is arranged for connecting a support structure thereto. The height adjustment devices are arranged to vary the position of at least a portion of the support frame in relation to the ground transportation structures.

Abstract: The present disclosure relates to a coated cutting tool having a cemented carbide body and a 0.5-10 ?m (Ti,Al,Cr)N nanolayered PVD coating with an average composition TiaAlbCrcN, wherein a=0.25-0.7, b=0.3-0.7 and c=0.01-0.2, a+b+c=1. The cemented carbide body has a composition of 5-18 wt % Co, 0.1-2.5 wt % Cr, 0-10 wt % carbides or carbonitrides of metals from groups 4, 5 and 6 in the periodic table of elements, and the balance WC.

Abstract: Method for producing a high-pressure tube with inner tube and outer tube made of metal are drawn together through a first drawing die. The outer diameter of the inner tube is smaller than the inner diameter and drawing forms a very stable frictional connection between the inner tube and the outer tube. The manufactured tube has a large wall thickness and is very robust and pressure-resistant while having a very high quality outer shell surface and in particular a very high quality inner shell surface by virtue of the cold forming process. These two properties allow a sufficiently high protection against bursting when pressures in excess of 12,000 bar are applied to the tube. The produced tube has improved dynamic pressure resistance against high pressures by combining a large wall thickness of the tube to be manufactured with a high quality inner shell surface of the tube to be manufactured.

Abstract: Method of producing a tube of duplex stainless steel is disclosed. The steel comprises the following composition, in weight %: C max 0.03, Si max 1.0, Mn max 1.5, P max 0.05, S max 0.03, Cr 24-26, Ni 6-8, Mo 3.0-4.0, N 0.24-0.32. The method comprises steps of: forming a tube of the duplex stainless steel, cold working the tube obtained from the step of forming a tube, and soft annealing the tube after the step of cold working by subjecting the tube to a temperature, T, within a range of 500-750° C. for a time period, t, of 0.5-5 minutes.

Abstract: The present disclosure relates to a method which uses welding in order to join a FeCrAl alloy to a FeNiCr alloy by using a specific filler metal. The present disclosure also relates to a product obtained thereof. Further, the present disclosure relates to the use of the method, especially in high temperature applications.

Abstract: A threaded coupling for a drill string component includes a body on which is formed a thread. A reduction in stress concentrations and a resistance to bending moments are achieved at the thread by reducing a thread depth at at least one axial end of the thread and by arranging an endmost flank of a crest or root of the thread at an endmost helical turn.

Abstract: A percussive rock drill bit has a head and a shank in which a plurality of flushing grooves extend radially outward and axially rearward from a front face. The flushing grooves are configured to optimize the axially rearward flow of rock particles and fines entrained in the flushing fluid. In particular, each groove is generally convex relative to a longitudinal axis of the drill bit and is declined continuously relative to the axis from a first groove end to a second groove end.

Abstract: A rotary drill tool for cutting rock includes a set of journal legs that rotatably mount rotating cone shaped cutters via respective bearing assemblies. A fluid supply passageway extends through the journal legs to provide a cooling and cleaning fluid to the bearings during use. A by-pass passageway extends through a base region of the spindle that mounts each cone cutter and is provided in direct fluid communication with the supply passageway to divert the fluid to a base region of the bearing assembly.

Abstract: The present disclosure relates to a process for manufacturing a product of commercially pure titanium, wherein the process includes the steps of mechanically deforming an object of commercially pure titanium in a temperature below ?80° C. until the product is formed, and heat-treating the formed product in a temperature range of from 300 to below 450° C. during a treatment time from 10 minutes to 168 hours.

Abstract: A rotary drill tool for cutting rock includes at least one journal leg mounting a spindle and a respective rotary cone cutter. The spindle includes a plurality of fluid distribution passageways arranged to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.

Abstract: A process for producing a high-grade steel tube includes the steps of: providing a tubular blank of an austenitic high-grade steel, wherein the high-grade steel comprises in weight % no more than 0.02% carbon, no more than 1.0% manganese, no more than 0.03% phosphor, no more than 0.015% sulfur, no more than 0.8% silicon, no more than 17.5% t to 18.5% nickel, no more than 19.5% to 20.5% chromium, no more than 6.0% to 6.5% molybdenum, no more than 0.18% to 0.25% nitrogen, no more than 0.5% to 1.0% copper, and a remainder of iron and unavoidable impurities; and cold-forming the blank into a tube.

Abstract: A cutting insert for cutting, milling or drilling of metal includes a sensor for detecting a predetermined wear of the cutting insert caused by operation thereof on a metal work piece, wherein the sensor includes at least two contact regions through which the sensor is connectable to external measuring circuitry. The sensor has at least two leads, which are connected to a respective of the at least two contact regions, wherein each lead presents a respective free end positioned such that, upon the predetermined wear caused by the operation of the cutting insert on a metal work piece, the free ends will be connected to each other by the metal work piece or by a chip resulting from the operation of the cutting insert on the metal work piece.

Abstract: A tube arrangement comprising a first metal tube, a second metal tube, a first sleeve part, and a second sleeve part. The first and second sleeve parts are threadedly connected to the first and second metal tubes. The first and second metal tubes are configured to be joined via a butt weld joint. The first sleeve and the second sleeve are configured to be joined via a second butt weld joint. The first sleeve part comprises a first outer surface extending at a first acute angle (?) to an axial centre axis of the first sleeve part and the second sleeve part comprises a second outer surface extending at a second acute angle (?) to an axial centre axis of the second sleeve part. The present disclosure also relates to a furnace.

Abstract: A drill string rod forms part of a drill string having one end configured with a male spigot portion to be received within a corresponding rod female sleeve end. To minimize stress concentrations within the threaded male and female coupling, the male spigot is configured with a large diameter or cross-sectional area being at least equal to the cross sectional area or diameter of the main length section.

Abstract: A wear resistant funnel sheet element for a material guide chute includes first and second edges located at a tapered angle from each other. Interlinking fastening features are provided in order to mate the respective edges of at least one of the wear resistant funnel sheets to form a funnel element. The sheet element may be a molded flat piece of a rubber material, which serves as an interchangeable wear part on a material guide chute.

Abstract: A moulding tool for powder injection moulding a cemented carbide or cermet component includes a through hole. The moulding tool further includes at least a first and a second tool part arranged to define at least one mould cavity for forming a component. At least one inlet channel introduces moulding material into the mould cavity. The inlet channel extends through the first tool part to the mould cavity, and has an outlet end having an outlet opening for discharging moulding material from the inlet channel into the mould cavity. At least one core forms a through hole in the component, the core having an end and being arranged to extend into the mould cavity along a longitudinal axis (X) in a direction towards the outlet opening of the inlet channel. The end of the core is arranged to close the outlet opening of the inlet channel and the core is arranged movably along the longitudinal axis (X) such that the end of the core may engage with the outlet opening of the inlet channel.

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 coated cutting tool has a substrate coated with a coating including a layer of ?-Al2O3, wherein the ?-Al2O3 layer exhibits a dielectric loss of 10?6?tan ??0.0025, as measured with AC at 10 kHz, 100 mV at room temperature of 20° C.