Patents Assigned to Sandvik Intellectual Property
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Publication number: 20080309026Abstract: The present invention concerns a system for sealing between a rock processing equipment, such as a vibrating screen and a stationary cover or other part. A sealing strip is arranged between the vibrating screen and the stationary cover. The sealing strip is attached to snap profiles fixed to the vibrating screen and the stationary cover, respectively. The sealing strip is fixed to the snap profiles by means of grip strips. The sealing strip is placed slanted in relation to the sides of the vibrating screen and stationary cover, respectively.Type: ApplicationFiled: June 4, 2008Publication date: December 18, 2008Applicant: Sandvik Intellectual Property ABInventor: Mats Malmberg
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Publication number: 20080304923Abstract: A tool for chip removing machining, including a long narrow basic body having an envelope surface which is concentric with a center axis, and two opposite ends, and a replaceable loose top which is connected to the basic body via a first coupling that includes a first seating formed in one end of the basic body and a first male element formed in one end of the loose top. The basic body includes a primary part body made of a first material having a first modulus of elasticity, and a secondary part body which includes the first seating and is made of a second material having a second modulus of elasticity which is lower than the first modulus of elasticity.Type: ApplicationFiled: May 22, 2008Publication date: December 11, 2008Applicant: Sandvik Intellectual Property ABInventors: Ralf LEHTO, Magnus ORTLUND, Isak KAKAI
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Publication number: 20080299366Abstract: The present invention relates to a cutting tool insert for parting, grooving and threading in steel and stainless steels comprising a substrate and a coating. The substrate comprises WC, from about 7.5 to about 10.5 wt-% Co, from about 0.7 to about 1.1 wt-% Cr and from about 100 to about 300 ppm Ti. Ti may partly be replaced by Ta to a weight ratio Ti/Ta of equal to or more than about 0.8. The coating comprises two (Ti,Al)N-layers with different Al/Ti-ratios: an inner AlyTi1-yN-layer with y equals from about 0.4 to about 0.67 with a thickness of from about 0.3 to about 2.5 ?m and an outer AlwT1-wN layer with w equals from about 0.15 to about 0.35 with a thickness of from about 0.5 to about 5.0 ?m.Type: ApplicationFiled: May 23, 2008Publication date: December 4, 2008Applicant: Sandvik Intellectual Property ABInventors: Mats Ahlgren, Susanne Norgren, Anders Nordgren, Ann-Britt Ljungberg, Anders Jonsson, Ann-Marie Malm, Bo Blom, Martin Hansson
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Publication number: 20080299383Abstract: The present invention relates to a cuffing insert for turning in heat resistant superalloys and stainless steels comprising a very fine grained hard substrate and a coating. The substrate comprises WC from about 5 to about 8 wt % Co and from about 0.3 to about 1.5 wt % Cr. In addition to that ppm levels of Ti and Ta are present. The ratio of Me/Co=(at-% Ti+ at-% Nb+ at-% Ta)/at-% Co is lower than or equal to about 0.014?(CW_Cr)*0.008 and higher than about 0.0005. The average sintered WC-grain size is from about 0.5 to about 0.95 ?m and CW_Cr from about 0.75 to about 0.95. The cemented carbide body is coated with a PVD TixAl1-xN-coating with an average composition of x being greater than about 0.4 but less than about 0.9, present as a single or multilayer coating with a total thickness of from about 1 to about 6 ?m.Type: ApplicationFiled: May 23, 2008Publication date: December 4, 2008Applicant: Sandvik Intellectual Property ABInventors: Malin Martensson, Kerstin Lundin, Susanne Norgren
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Publication number: 20080298921Abstract: A coated cutting tool insert is disclosed particularly useful for dry and wet machining, preferably milling, in un-, low- and high alloyed steels and cast iron, with or without raw surface zones. The insert is characterized by a WC—TaC—NbC—Co cemented carbide with a W alloyed Co-binder phase and a coating including an innermost layer of TiCxNyOz with columnar grains and a top layer, at least on the rake face, of a smooth ?-Al2O3.Type: ApplicationFiled: May 30, 2008Publication date: December 4, 2008Applicant: Sandvik Intellectual Property ABInventors: Rickard SUNDSTROM, Alexandra Kusoffsky, Marie Pettersson, Anders Lundqvist
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Publication number: 20080298918Abstract: A drill body for chip removing machining, including an envelope surface which is concentric with a center axis around which the drill body is rotatable, and transforms into a front end surface, and a front cutting edge adjacent to a chip flute which is countersunk in the envelope surface in the area in front of the cutting edge as viewed in the direction of rotation of the drill body and runs out into the front end surface. In the front part of the chip flute, a depression is formed, which includes two part surfaces extending at an obtuse angle (a) to each other, one of which forms a bottom surface in the depression, and the other of which faces the cutting edge and is in front of the cutting edge as viewed in the direction of rotation to form a stop face for a chip removed by the cutting edge.Type: ApplicationFiled: May 16, 2008Publication date: December 4, 2008Applicant: Sandvik Intellectual Property ABInventor: Magnus Brink
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Publication number: 20080295658Abstract: The present invention relates to PVD coated cemented carbide cutting tool inserts semifinishing and finishing metal cutting operations. The cemented carbide cutting tool insert comprises a substrate and a wear resistant coating. The substrate comprises in addition to WC, from about 5.5 to about 8.5 wt-% Co and Cr such that the Cr/Co weight ratio is from about 0.08 to about 0.12 and also small amounts of Ti and Ta. The wear resistant coating is a homogeneous AlxTi1?xN-layer with x equals from about 0.6 to about 0.67. The thickness of this layer is from about 1 to about 3.8 ?m.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Applicant: Sandvik Intellectual Property ABInventors: Pierre Donnadieu, Susanne Norgren
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Patent number: 7455482Abstract: 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.Type: GrantFiled: October 14, 2004Date of Patent: November 25, 2008Assignee: Sandvik Intellectual Property ABInventor: Göran Lundvall
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Patent number: 7448832Abstract: Support pad for a long hole drill head wherein the support pad includes a base body with a bottom surface, at least one side surface and a top surface. The top surface is arranged to function as a wear surface and is defined by a titanium-free wear-resistant coating, whereas the remaining surfaces of the support pad are defined by a titanium-containing wear-resisting coating.Type: GrantFiled: March 5, 2007Date of Patent: November 11, 2008Assignee: Sandvik Intellectual Property ABInventors: Raimo Annanolli, Veronica Böstrom
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Patent number: 7449045Abstract: A method of handling liquid non-ferrous metals after smelting. The liquid metal is in contact with a solid refractory material, and in the absence of electrical currents passing through the liquid-metal-contacting surfaces. The solid material is Ti3SiC2. The liquid non-ferrous material can be aluminum or an aluminum alloy, magnesium or a magnesium alloy, or other non-ferrous materials as to which the Ti3SiC2 material is stable.Type: GrantFiled: August 14, 2006Date of Patent: November 11, 2008Assignees: Sandvik Intellectual Property AB, Drexel UniversityInventors: Mats Sundberg, Jan-Olof Olsson, Chet Popilowski
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Patent number: 7449043Abstract: 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.Type: GrantFiled: December 15, 2004Date of Patent: November 11, 2008Assignee: Sandvik Intellectual Property AktiebolagInventors: Marianne Collin, Susanne Norgren, Håkan Engstrōm
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Patent number: 7439473Abstract: A method of supporting vertically hanging electrical resistance elements for heating furnaces or ovens in industrial operations. Each resistance element includes current-conducting legs that extend downward and upward a number of times, and the element includes along its length a number of ceramic discs that are provided with through-holes through which respective element legs extend. The upper part of the element merges with terminals that are connected to a source of electric current. The element is supported by at least one of the uppermost ceramic discs, wherein the uppermost ceramic disc supporting the element is placed in the insulation of the furnace roof above the underside of the roof. The legs of the element are short circuited at a location slightly or somewhat beneath the underside of the furnace roof with the aid of short circuiting plates.Type: GrantFiled: June 29, 2004Date of Patent: October 21, 2008Assignee: Sandvik Intellectual Property ABInventor: Thomas Lewin
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Patent number: 7434635Abstract: A rock drilling bit includes at least one button having a button sidewall and button bottom, the button sidewall and the button bottom having a button sidewall geometry and a button bottom geometry, respectively. The rock drilling bit further comprises a bit body having at least one button-receiving hole having a hole sidewall and a hole bottom, the hole sidewall and the hole bottom having a hole sidewall geometry complementary to the button sidewall geometry and a hole bottom geometry, and a deformable seat compressed between the buttom bottom and the hole bottom so that the seat conforms to a hole bottom geometry and the button bottom geometry. The seat comprises tin.Type: GrantFiled: August 11, 2006Date of Patent: October 14, 2008Assignee: Sandvik Intellectual Property ABInventors: Rob A. Simmons, Matthew Floyd Shofner
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Patent number: 7431977Abstract: Coated milling inserts particularly useful for milling of grey cast iron with or without cast skin under dry conditions at generally high cutting speeds and milling of nodular cast iron and compacted graphite iron with or without cast skin under dry conditions at rather high cutting speeds are disclosed. The inserts are characterised by a WC—Co cemented carbide with a low content of cubic carbides and a highly W-alloyed binder phase and a coating including an inner layer of TiCxNy with columnar grains followed by a wet blasted layer of ?-Al2O3.Type: GrantFiled: October 31, 2005Date of Patent: October 7, 2008Assignee: Sandvik Intellectual Property ABInventor: Ingemar Hessman
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Patent number: 7431542Abstract: A cutting insert preferably for milling of extremely highly alloyed grey cast iron, of a substrate and a coating and methods of making and using the insert are disclosed. The cemented carbide substrate includes WC, of from about 3 to about 8 weight-% Co and less than about 0.5 weight-% carbides of metals from groups IVb, Vb or VIb of the periodic table. The coating has a first, innermost layer of TiCxNyOz with x+y+z=1, y>x and z less than about 0.2, preferably y greater than about 0.8, and z=0, with equiaxed grains with size less than about 0.5 ?m and a total thickness of from about 0.1 to about 1.5 ?m, a layer of TiCxNy with x+y=1, x greater than about 0.3 and y greater than about 0.3, preferably x greater than or equal to about 0.5, with a thickness of greater than about 3 to about 5 ?m with columnar grains with an average diameter of less than about 5 ?m, a layer of a smooth, fine-grained, grain size of from about 0.5 to about 2 ?m, ?-Al2O3 with a thickness of from about 0.Type: GrantFiled: October 31, 2005Date of Patent: October 7, 2008Assignee: Sandvik Intellectual Property ABInventor: Ingemar Hessman
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Patent number: 7431540Abstract: A turning insert includes a chip-breaking surface and first and second clearance surfaces located at a corner of the insert. First and second edges are formed at a junction of the chip-breaking surface and the first and second clearance surfaces, respectively. The first edge defines a major cutting edge, and the second edge defines a finishing cutting edge. The major cutting edge is straight and transforms into the second edge by a sharp transition.Type: GrantFiled: May 12, 2005Date of Patent: October 7, 2008Assignee: Sandvik Intellectual Property ABInventors: Ronnie Löf, Hans Thordenberg, Chris Mills, Jörgen Wiman
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Patent number: 7429151Abstract: Coated milling inserts particularly useful for milling of highly alloyed grey cast iron with or without cast skin under wet conditions at preferably rather high cutting speeds and milling of nodular cast iron and compacted graphite iron with or without cast skin under wet conditions at moderate cutting speeds are disclosed. The inserts are characterised by a WC—Co cemented carbide with a low content of cubic carbides and a highly W-alloyed binder phase and a coating including an inner layer of TiCxNy with columnar grains followed by a layer of ?-Al2O3 and a top layer of TiN.Type: GrantFiled: October 31, 2005Date of Patent: September 30, 2008Assignee: Sandvik Intellectual Property ABInventor: Ingemar Hessman
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Patent number: 7427310Abstract: 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.Type: GrantFiled: December 15, 2004Date of Patent: September 23, 2008Assignee: Sandvik Intellectual Property ABInventors: Mathias Tillman, Susanne Norgren, Marianne Collin
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Patent number: 7422805Abstract: Coated cemented carbide cutting tool inserts for bimetal machining under wet conditions at moderate cutting speeds, and in particular, cutting tool inserts for face milling of engine blocks formed from alloys of cast iron and aluminium and/or magnesium. The inserts are characterized by a submicron WC—Co cemented carbide and a coating including an inner layer of TiCxNy with columnar grains followed by a layer of ?-Al2O3 and a top layer of TiN.Type: GrantFiled: February 15, 2005Date of Patent: September 9, 2008Assignee: Sandvik Intellectual Property AktiebolagInventor: Ingemar Hessman
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Patent number: 7419336Abstract: An indexable milling insert includes opposite top and bottom sides between which a peripheral clearance surface extends, and two opposite cutting edges formed in the transition between the top side and the clearance surface. Each of the cutting edges includes a substantially straight portion connected with a straight section of the clearance surface, and further includes a curved portion connected with a convexly arched section of the clearance surface. A coupling including one or more male- and/or female-like engagement members is located along said clearance surface. Furthermore, the milling insert may be used with a shim plate for attachment to a milling tool.Type: GrantFiled: May 24, 2006Date of Patent: September 2, 2008Assignee: Sandvik Intellectual Property ABInventors: Ralf Lehto, Lars-Gunnar Wallström, Göran Pantzar, Per Blomstedt