Abstract: A tool for chip removing machining, including a basic body and two replaceable cutting inserts. Each insert includes a chip-removing main edge situated between a chip surface and a clearance surface, a first insert of which precedes a second insert during machining of a workpiece. The cutting inserts overlap each other in a zone defined by a borderline along which a surface generated by the main edge of the first cutting insert, with a time delay, is intersected by the main edge of the subsequent, second cutting insert. The main edge of the second cutting insert that afterwards intersects the already generated surface, is formed along a chip surface including primary and secondary sections, which have different shapes in cross-sections spaced-apart along the main edge in order to form a primary part edge and a secondary, reinforced part edge arranged to intersect the already generated surface.

Abstract: A cutting insert used for cutting metal, especially for milling camshafts. The insert comprises at least one cutting edge that is formed by the intersection of a face with a flank. The cutting edges extend at an angle deviating from 90° relative to the cutting direction of the cutting insert in order to reduce the noise level during machining.

Abstract: A ring, preferably in the form of a lock nut, made for combi rolls, which ring includes at least one spring device in which a mechanical compression spring is included that acts between, on one hand, a front press body that is movable to and fro in order to constantly forward a spring force generated by the compression spring and, on the other hand, a support body, which may assume a fixed position, but which is adjustably movable by way of a screw in order to alter the tension in the compression spring.

Abstract: An autonomous drilling rig (200), including a carriage including a mast (204), a rotary head (202) configured to traverse up and down the mast (204), and a wireless transmission system. The wireless transmission system includes a wireless transmitter (208) mounted on the rotary head (202) and configured to send a wireless signal to a wireless receiver (210). The wireless transmitter (210) includes a first connector (209) configured to engage with a first sensor, wherein the sensor measures at least one operating parameter. The wireless transmission system further includes the wireless receiver (210) configured to receive the wireless signal from the wireless transmitter (208), wherein the wireless signal comprises the at least one measured operating parameter, and a display unit (610) operatively connected to the wireless receiver (210) and configured to display the measured operating parameter.

Abstract: A milling insert for center cutting milling of material is disclosed, which milling insert is arranged to be arranged in a seat that is defined by a milling cutter body and situated at a rotation axis defined by the milling cutter body, the milling cutter body being connectable to a rotatable holder. The milling insert includes a plurality of cutting edges, where at least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert, the first cutting edge including a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius.

Abstract: A double-sided, indexable turning insert having a polygonal basic shape, including at least three corners, and an upper side and an under side, in which first and second opposite, plane support surfaces are included, The plane support surfaces are delimited inside outer contour lines, and parallel to each other and to a neutral plane (NP) situated halfway between the plane support surfaces. A plurality of cutting edges are along the upper side and the under side, each one of which includes a nose edge and two main edges converging toward the nose edge, all nose edges along the individual upper or under side being situated in a common reference plane (RP) that is depressed in relation to the support surface.

Abstract: The invention relates to a coated cutting tool comprising a substrate provided with a coating comprising a metallic interlayer placed in-between at least two non-metallic, functional layers or layer systems where the metallic interlayer comprises at least 60 at % metal elements chosen from one or more of Ti, Mo, Al, Cr, V, Y, Nb, W, Ta and Zr, or mixtures thereof, and wherein the at least two non-metallic, functional layers or layer systems is one or more of nitrides, oxides, borides, carbides, or combinations thereof, and wherein the thickness of the at least two non-metallic functional layer or layer systems is from about 3 to about 200 times the thickness of the metallic interlayer. The number of non-metallic, functional layers or layer systems alternated with metallic interlayers is at least 3. The invention also relates to a method of making a cutting tool according to the invention. Cutting tools according to the invention have an increased tool life.

Abstract: An elongated percussive rock drilling element comprises at least one thread portion and a flush channel. At least the thread portion is made of a corrosion resistant steel having a structure with a martensite content greater than about 50 wt-% and less than about 100 wt-%, in which the steel comprises C+N greater than about 0.1 wt-% and less than or equal to about 0.8 wt-% and Cr greater than or equal to about 11 wt-% or Cr greater than or equal to about 5 wt-%, Mo less than or equal to about 5 wt-%, W less than or equal to about 5 wt-%, Cu less than or equal to about 2 wt-%, Mo+W+Cu greater than about 0.5 wt-% or Cr+3.3 (Mo+W)+16N greater than about 10 wt-%. The surface of said at least one thread portion of said corrosion resistant steel is ball blasted.

Abstract: The present invention relates to a coated cutting tool wherein a substrate is coated with a thin, adherent, hard and wear resistant coating comprising a laminar, multilayered structure of alternating layers of metalnitrides, metalcarbides or metalcarbonitrides. In the coating the sequence of individual layer thicknesses has no repeat period but is essentially aperiodic throughout the entire multilayered structure. The average chemical composition of the coating was AlaTibSicCrd(CeN1?e) where a is greater than zero and less than about 0.5, preferably a is greater than about 0.05 and less than about 0.4, where b is greater than about 0.1 and less than about 0.9, preferably b is greater than about 0.3 and less than about 0.9, where c is greater than about 0.01 and less than about 0.17, preferably c is greater than about 0.02 and less than about 0.1, where d is greater than or equal to zero and less than about 0.

Abstract: A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, Me1X+Me2X+Me1X+Me2X . . . , where at least one of Me1X and Me2X is a metal oxide+metal oxide nano-composite layer composed of two components, wherein the layers Me1X and Me2X are different in composition or structure, the laminated multilayer layer has a compositional gradient, with regards to a concentration, in a direction from an outer surface of the coating towards the substrate, the gradient being such that a difference between an average concentration of an outermost portion of the multilayer and an average concentration of an innermost portion of the multilayer is at least about 5 at-% in absolute units.

Abstract: A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, Me1X+Me2X+Me1X+Me2X . . . , where at least one of Me1X and Me2X is a metal oxide+metal oxide nano-composite layer composed of two components with different composition and different structure which components include a single phase oxide of one metal element or a solid solution of two or more metal oxides, wherein the layers Me1X and Me2X are different in composition or structure and have individual layer thicknesses larger than about 0.4 nm but smaller than about 50 nm and where said laminated multilayer layer has a total thickness of between about 0.2 and about 20 ?m.

Abstract: A medical implant device or component thereof comprising a metal substrate and a coating layer structure provided on the substrate. The coating layer structure comprises an outermost layer of a ceramic material. A bonding structure is deposited between the metal substrate and the coating layer structure. The bonding structure comprises a chromium rich layer, which is deposited onto the metal substrate surface and has a higher concentration of chromium than the metal substrate, as well as a gradient layer having a composition gradient from the chromium rich layer towards the surface of the device providing increasing proportions of a gradient material which has structural correspondence with the layer of the coating layer structure that is most adjacent to the bonding structure.

Abstract: An austenitic stainless steel alloy having the following composition in percent of weight (wt %): 0.02?C?0.06; Si<1.0; 2.0?Mn?6.0; 2.0?Ni?4.5; 17?Cr?19; 2.0?Cu?4.0; 0.15?N?0.25; 0?Mo?1.0; 0?W?0.3; 0?V?0.3; 0?Ti?0.5; 0?Al?1.0; 0?Nb?0.5; 0?Co?1.0; the balance Fe and normally occurring impurities, wherein the contents of the alloying elements are balanced so that the following conditions are fulfilled: Nieqv?1.42*Creqv??13.42; and Nieqv+0.85*Creqv?29.00 wherein Creqv=[% Cr]+2*[% Si]+1.5*[% Mo]+5*[% V]+5.5*[% Al]+1.75*[% Nb]+1.5*[% Ti]+0.75*[% W] Nieqv[% Ni]+[% Co]+0.5*[% Mn]+0.3*[% Cu]+25*[% N]+30*[% C]; and ?70° C.<MD30<?25° C., wherein MD30=(551?462*([% C]+[% N])?9.2*[% Si]?8.1*[% Mn]?13.7*[% Cr]?29*([% Ni]+[% Cu])?68*[% Nb]?18.5*[% Mo])° C.

Abstract: The invention relates to a roller of the type that comprises, on one hand, a drive shaft, which has a cylindrical envelope surface having a certain outer diameter and a certain length, and, on the other hand, a shorter roller ring, which includes an outer ring of a hard material and an inner ring concentric with the same and of a more ductile material, which includes a cylindrical inside having a certain inner diameter and is, on one hand, permanently united to the outer ring in a metallurgical way, and, on the other hand, rotationally rigidly connected with the drive shaft in order to, from the same, transfer torque to the outer ring. According to the invention, the rotationally rigid joint between the drive shaft and the roller ring solely consists of a shrink-fit joint that is established between the envelope surface of the drive shaft and the inside of the inner ring and has an interference of at least 0.01% of the outer diameter of the drive shaft.

Abstract: A rotatable grading pick has a head portion, a shank portion extending rearwardly from the head portion, and a polygonal portion on the rotatable grading pick. At least a portion of the outer perimeter of the polygonal portion can be engaged by a tool so that the polygonal portion can be rotated, and the shank portion can be rotated to clear debris between the shank portion and a retainer placed around a part of the shank portion.

Abstract: A cutting tool has a first cutting end, a second cutting end, a shoulder at an interface between the first cutting end and the second cutting end, and a shield removably mounted on one of the first cutting end and second cutting end. The cutting ends each have a cutting tip at a distal end, a body portion, a recess in the body portion and a retainer positioned in the recess. Cutting ends can be mirror images of each other, or may be non-mirror imaged, for example with different gage lengths, to accommodate different operating conditions. One of the cutting ends is mounted in a holder and the shield protects the retainer and recess features on the operating cutting end. A combination of a reversible cutting tool and a sleeve and/or block holder system, an apparatus for cutting, a sleeve per se and a shield per se are also disclosed.

Abstract: The present invention relates to a cutting tool insert preferably for machining of hardened steel, hot and cold working tool steel, die steel, case hardened steel, high speed steel and ductile grey cast iron and composed of a composite comprising from about 30 to less than about 60 vol-% of a cBN-phase and a binder phase comprising a titaniumcarbonitride phase and a TiB2 phase. According to the invention, in the XRD pattern from the composite using CuK?-radiation the peak height ratio of the strongest TiB2 peak and the strongest cBN peak is less than about 0.02.

Abstract: A holder block and pick assembly including a pick, a washer, and a block body. The pick includes a shoulder and a shank extending rearwardly from the shoulder and having a diameter smaller than the diameter of the shoulder. The washer has a central opening adapted to fit about the shank adjacent to the shoulder and a substantially flat edge disposed substantially perpendicular to a radius of the central opening. The block body includes a bore for receiving the shank, a base surface at a lower end of the body for mounting the body to a rotatable element of a rotary cutting machine, and a stop extending frontwardly from the front face of the body and having a surface located substantially perpendicularly to a radius of the bore such that when the pick shank is inserted into the bore with the washer disposed about the shank adjacent to the shoulder, the flat edge of the washer engages the surface of the stop to substantially prevent the washer from rotating with respect to the block.

Abstract: The present invention relates to coated cutting tool inserts particularly useful for heavy roughing turning operations of very large steel components, such as drive shafts for ships and shafts for wind power plants. The inserts are large with an iC, inscribed circle diameter, of greater than or equal to about 19 mm and a thickness of greater than or equal to about 6 mm with a composition of from about 5 to about 10 wt-% Co, from about 5 to about 12 wt-% cubic carbides or carbonitrides of the metals Ti, Ta and/or Nb, and balance WC with a stratified binder phase enriched surface zone from about 15 to about 40 ?m thick. The inserts have an edge rounding before coating of 35-95 ?m. The coating comprises a first, innermost layer of TiCxNyOz and a total thickness from about 0.1 to about 1.5 ?m, a second layer of TiCxNy with a thickness of from about 4.5 to about 9.5 ?m with columnar grains, a third layer of TiCxNyOz with a thickness of from about 0.3 to about 1.