Abstract: A drilling tool includes a drill body having chip channel formed therein and carrying cutting inserts at front ends of respective chip channels. Disposed in the chip channels at a location spaced from the cutting insert are respective damping elements. Each damping element comprises first and second portions formed of respective materials of different rigidity.

Abstract: A tool holder is held in a support body by a clamp which is wedged between the support body and the tool holder. The clamp is secured in the support body by a threaded fastener that extends through a through-hole formed in the clamp. The fastener carries a flange which pulls the clamp out of wedging relationship when the fastener is unscrewed. A spring disposed in the through-hole functions to keep the clamp pressed against the tool holder even after the clamp has been loosened, in order to keep the tool holder from falling out of the support body. A stopper is disposed behind the tool holder to locate the tool holder in a desired cutting position and to keep the tool holder pressed against an abutment surface of the support body.

Abstract: A cemented carbide cutting tool insert/button for mining and construction comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the smaller grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool insert/button is also disclosed.

Abstract: A percussion device for a rock drilling machine or the like, which comprises means for providing an impact, i.e. a stress pulse, to a tool connected to the percussion device. The means for proving the stress pulse include a stress element (4) of liquid, which is supported to a body (2) of the percussion device and means for subjecting the stress element to pressure and correspondingly for releasing the stress element (4) abruptly, whereby the stress energy is discharged as a stress pulse to the tool in direct or indirect contact with the stress element.

Abstract: A diverting system for displacing articles from a conveying surface including a diverter blade adapted to be rotated about a rotary axis from a retracted position along the edge of the conveying surface to an extended position to displace the articles, the diverter blade having a pusher surface spaced apart from the rotary axis by a connecting portion of the blade. A section of the connecting portion located immediately downstream of the rotary axis extends away from the edge in the blade's retracted position to form a void, so that when the blade is in an extended position for diverting a leading (downstream) article, the presence of the void prevents contact between the diverter blade and a trailing (upstream) article. The trailing article can travel downstream past the axis even while the blade is in the extended position. Thus, the trailing article can be positioned closer to the leading article without risk of contacting the blade, thereby increasing the throughput of the system.

Abstract: A tool for chip-removing machining includes first and second metallic parts, and a metallic shim disposed within a gap between those parts. An outer periphery of the shim is exposed. A laser welding procedure is performed around the exposed outer periphery of the shim to weld the shim to the first and second parts. The procedure involves positioning a welder in a first position to weld the shim to one of the first and second parts, and then repositioning the welder to a second position to weld the shim to the other of the first and second parts.

Abstract: An indexable cutting insert has at least first and second cutting edges and first and second edge-location surfaces associated with the first and second cutting edges, respectively. The insert-manufacturing procedure includes forming the first edge-location surface with reference to the first cutting edge, and then forming the second edge-location surface with reference to the second cutting edge. There results an indexable cutting insert having at least two spaced-apart chip-removing cutting edges and a plurality of location surfaces adapted to engage a base body for determining the spatial positions of respective cutting edges, wherein each location surface determines the spatial position of no more than one of the cutting edges.

Abstract: A conveying apparatus includes a conveying assembly and a vertical funnel assembly mounted at a discharge end of the conveying assembly for guiding the discharge of bulk material. The funnel assembly includes a vertical row of frames slidably disposed on a pair of vertical wires. Adjacent frames are connected by flexible connecting elements. Each frame releasably carries a funnel element for conducting the bulk material so that a funnel element can be replaced without having to dismantle all of the funnel elements. Each funnel element includes a safety release connection enabling the funnel assembly to collapse under excessive loads, thereby protecting the conveyor from damage.

Abstract: The present invention relates to a method and a carrier body for coating cutting tools for chip removal. The carrier body is adapted to be used during coating of cutting tool inserts in a CVD and/or a MTCVD method. The carrier body is at least partially comprised of a material selected from the MAX phase family, i.e. Mn+1AXn (n=1,2,3) wherein M is one or more metals selected from the groups IIIB, IVB, VB, VIB and VIII of the periodic table of elements and/or their mixture, A is one or more metals selected from the groups IIIA, IVA, VA and VIA of the periodic table of elements and/or their mixture, and wherein X is carbon and/or nitrogen.

Abstract: A gyratory crusher includes a first shell-having a support surface intended to abut against a shell-carrying member, and a first crushing surface intended to be brought into contact with material fed into the upper portion of the crusher, to crush the material against a corresponding second crushing surface disposed on a second shell arranged opposite the first shell. The first and second crushing surfaces oppose one another in spaced relationship to form a gap through which the material travels as it is being crushed. The gap includes an upper inlet and a lower outlet. Over at least 50% of the vertical height, from the outlet upwards toward the inlet, the first crushing surface is machined to a run-out tolerance, which on each level along the machined part of the vertical height does not exceed one thousandth of the largest diameter of the first crushing surface, or 0.5 mm, whichever is less.

Abstract: A cutting tool includes two parts releasably interconnectable via serration surfaces which are mechanically engageable in each other. At least one of the parts is composed of a first body and a supplemental body on which the serration surface of the one part is formed, and which via a permanent joint is stiffly united to the first body. The permanent joint can be established by laser-welding a shim disposed between the first body and the supplemental body.

Abstract: The invention relates to an arrangement for mounting electric heating elements in a furnace in which objects are intended to be heated, wherein the furnace wall includes a furnace insulation (4) comprised of high grade brick, and wherein the heating zones (6) of respective electric heating the inner surface of the furnace wall in operation.

Abstract: A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.

Abstract: A cemented carbide including WC, a binder phase based on Co, Ni or Fe, and gamma phase, in which said gamma phase has an average grain size <1 ?m. A method of making the cemented carbide is provided in which the powders forming gamma phase are added as mixed cubic carbides of one or more of Ti, Ta, Nb, Zr, Hf and V, and a ratio, fWC, between an amount of WC (in mol fraction of WC) and an equilibrium gamma phase WC content at a sintering temperature (in mol fraction WC) is given by fWC=xWC/xeWC, wherein fWC is 0.6 to 1.0.

Abstract: A ferritic stainless steel alloy useful as a substrate for catalytic converter material consists of, by weight: 15-21% Cr, 8-12% Al, 0.01-0.09% Ce, 0.02-0.1% total of REM, and possible minor amounts of further elements, other than the ones mentioned, the balance being Fe with normally occurring impurities. These alloys have managed to combine a high content of Al with a good hot and cold workability.

Abstract: An austenitic alloy with the following composition, in weight-%: Cr 23-30 Ni 25-35 Mo 3-6 Mn 1-6 N ??0-0.40 C up to 0.05 Si up to 1.0 S up to 0.02 Cu up to 3.0 and the balance iron and normally occurring impurities and additions.

Abstract: According to the present invention there is provided a body at least partially coated with one or more refractory layers of which at least one layer essentially consist of ?-Al2O3. Said ?-Al2O3 layer consists of essentially equiaxed grains with an average grain size of <1 ?m and with a bimodal grain size distribution with coarser grains with an average grainsize in the interval 0.5-1 ?m and finer grains with an average grainsize of <0.5 ?m. The Al2O3 layer further contains striated zones containing titanium (>5 at %) but no nitrogen or carbon. This particular microstructure is obtained by temporarily stopping the gases needed for the growth of the Al2O3 layer and introducing TiCl4.

Abstract: An electrical resistance heating element operable at extremely high temperature, up 2300° C. when used in a vacuum or in a reducing atmosphere, and up to bout 1200° C. when used in an oxidizing atmosphere. The element is formed substantially from titanium silicon carbide (Ti3SiC2), which is readily workable to enable it to be produced in different forms. It also has a higher mechanical strength than that of graphite heating elements.

Abstract: A rotatable tool for chip removing machining includes two parts, viz. a holder part, rotatable around a geometrical center axis, and a replaceable cutting part, which is rigidly connectable to a front end of the holder part via a male/female coupling. The coupling includes a tapering seat in the holder part and a tapering male member, protruding rearwardly from the cutting part. In the seat, there is a slot, which separates two elastically deflectable projections, that may be inwardly deflected towards each other during clamping of the male member in the seat. The male member is elongated in a radial direction, and the seat is in the form of a radial groove into and out of which the sheath body is transversely movable. The male member includes a dove-tail shaped portion received in a dove-tail shaper portion of the groove. A centering button on the male member enters a depression in the holder part to axially center the cutting part.