Patents Assigned to Mircona AB
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Patent number: 8895160Abstract: The present invention provides an appliance for chip removal applications comprising a vibration-damping material wherein the vibration-damping material is a material arranged by nano-dimensional cluster form. The present invention additionally provides a method for manufacturing said appliance. The present invention provides also an appliance obtainable by said method. Additionally the present invention provides an article or work piece for use in an appliance for chip removal applications. Also a computer program is provided for controlling the above method.Type: GrantFiled: September 29, 2008Date of Patent: November 25, 2014Assignee: Mircona ABInventors: Ragnhild Mihic, Peter Mihic
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Patent number: 8240961Abstract: A tool holder 1 has a shaft 2 intended to be arranged in a tool holder in a manufacturing machine, a head 3 on which a cutter is intended to be arranged and a vibration-damping material 4 arranged between, and attached to, the shaft 2 and the head 3 such that the cutter is in contact with the manufacturing machine solely through the vibration-damping material 4, where the vibration-damping material is a metal or an alloy of metals selected from the group consisting of Cu, Ti, Zn, Al and Ni. A method for manufacturing a tool holder in which the surface covering of vibration-damping material is created by electrochemical pulse plating through the tool holder, when functioning as an electrode, being lowered into an electrolyte containing ions of at least one metal selected from the group consisting of Cu, Ti, Zn, Al and Ni.Type: GrantFiled: May 6, 2005Date of Patent: August 14, 2012Assignee: Mircona ABInventor: Peter Mihic
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Patent number: 6758638Abstract: A method and holding device for locking an insert into a tool are used in metal removal machining. The tool includes an insert (2) with a upper contact surface or section (4) and a lower contact surface of section (6) and a holder (8) in which the insert (2) is arranged. The holder includes a holder body (10) and a clamping device (12). The holder body has a lower contact surface or section (14). The insert is arranged in the holder such that the upper contact surface or section (4) of the insert is brought into contact and interaction with a bottom surface (16) of a clamping device while the lower contact surface or section (6) of the insert is brought into contact and interaction with the lower contact surface or section (14) of the holder.Type: GrantFiled: June 11, 2002Date of Patent: July 6, 2004Assignee: Mircona ABInventor: Peter Mihic
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Patent number: 5820309Abstract: Slot or track milling tool device wherein a number of inserts having an insignificant axial extension are arranged in seats at the peripheral portion of an essentially disc shaped tool holder body. The inserts, being of a per se known kind, have at least one abutment face arranged obliquely relative to the insertion direction of the insert. The abutment face in contact with an abutment portion at each seat of the tool holder body. Each such abutment portion being a tongue shaped portion integral with the tool holder body. For each tongue shaped portion, there is arranged a rotatable clamping device having a surface arranged in a cam or eccentric fashion. The rotatable clamping device is intended to displace the tongue shaped portions so that an abutment point thereon reaches an engagement with and remains in engagement with the obliquely rearwardly facing engagement surface of the insert.Type: GrantFiled: February 15, 1996Date of Patent: October 13, 1998Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: 5538368Abstract: Tool holder device has an elongated main body presenting a rearwardly extending back portion (2) to be received inside a turret body groove and locked therein by means of wedge means and a forwardly extending portion (3) having an obliquely arranged abutment surface (4) and an outwardly facing surface (5) defining a seat for the insert tool holder. The adjoining surface (6) of the main body having an elongated groove (7) having parallel walls also in parallel with the outwardly facing surface and a bottom perpendicular to same surface and in an intermediary position a number of threaded bores (8) extending essentially in parallel with the outwardly facing surface (5). The groove being adapted to receive two or more L-shaped clamping pieces (9) having one leg (10) with an end portion with a thickness corresponding to the width of the main body elongated groove (7) and another leg (11) having an abutment surface (12) for engaging the insert holder.Type: GrantFiled: April 18, 1994Date of Patent: July 23, 1996Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: 5392674Abstract: In a tool arrangement, an end part of a holder shaft is provided with a seat which provides a stable support for a cutter insert in at least two of the principal directions utilized in a machining operation. Stresses imposed on the cutter insert during the machining operation are transferred in an effective fashion to the shaft. The arrangement includes at least one tightenable fastening device which, after tightening, engages with the cutter insert and forces it against at least one surface of the seat. The cutter insert has stop parts with which the fastening device is intended to engage only after the cutter insert, through displacement relative to the seat on the shaft and whilst the cutter insert still in contact with the seat, has reached its operating position.Type: GrantFiled: October 29, 1993Date of Patent: February 28, 1995Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: 5388936Abstract: The invention relates to a fastening device or mounting of a tool holder (2) at a mandrel (1) for a milling machine and the like or a rotatable holder for boring machine and the like. The mandrel (1) presents a central trunnion (4) having an axial threaded bore (6). The trunnion (4) is used as a support for a sleeve (9) which is slid over the trunnion (4) and presents an external circumferential V-groove (10). The sleeve (9) has, at its inner end, recesses (8) complementary to a wedge (5) of the mandrel (1). A fastening screw (16) is insertable in the axial threaded bore (6) and has a head (17) engaging the outer end face of the sleeve (9). The tool holder (2) has an opposite central opening on each side communicating with recesses (8) for the wedge. The portion of the tool holder (2) surrounding the sleeve (9) has a number of radial locking screws (13) with conical inner ends adapted to engage the V-groove (10) of the sleeve (9).Type: GrantFiled: November 30, 1993Date of Patent: February 14, 1995Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: 5382122Abstract: A device is provided to eliminate unbalance and vibration occurring due to nonsymmetrical mounting of rotatable tools and tool holders in milling machines, arboring machines, drilling machines, etc. Attached to the tool holder in an appropriate place is a weight support able to receive one or more appropriately sized weights. The weights being radially adjustably securable to the weight support.Type: GrantFiled: November 30, 1993Date of Patent: January 17, 1995Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: 5382119Abstract: The invention relates to a cutting insert for machine tools wherein the insert adjacent its cutting edge has a chip forming device. The insert has a cutting edge and a planar surface adjoining the cutting edge. A recess is located downstream of the cutting edge and adjoining the planar surface. Various surfaces defining the recess are designed to engage a formed chip and bend it laterally. Obliquely upwardly directed abutment surfaces adjoining the planar surface are adapted to engage the edge flanks of the chip and bend the chip upwardly for breaking the chip into pieces.Type: GrantFiled: March 17, 1994Date of Patent: January 17, 1995Assignee: Mircona ABInventor: Wlajko Mihic
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Patent number: D701543Type: GrantFiled: December 8, 2009Date of Patent: March 25, 2014Assignee: Mircona ABInventor: Peter Mihic