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Class Information
Number: 72/83
Name: Metal deforming > By use of tool acting during relative rotation between tool and work about internal center (e.g., gyrating or rotating tool) > During rotation of work > Caused by work-holding, shape-imparting form (e.g., for "spinning") > With means causing cooperating presser member to traverse form surface
Description: Subject matter wherein the tool co-acts at any particular instant of time with a portion of the face of the turnable member and said tool is moved (a) relative to a point on the axis of said member and (b) along the face of the member.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8584498 Mandrel mill and method for manufacturing seamless pipe or tube Nov. 19, 2013
8522588 Clamp for disk rotation driving device and method of manufacturing clamp Sep. 3, 2013
8499600 Clutch assembly with formed retention ring Aug. 6, 2013
8479549 Method of producing cold-worked centrifugal cast tubular products Jul. 9, 2013
8230710 Method for forming a slip joint assembly with coated splines Jul. 31, 2012
8091231 Spinning method of a work piece in a non-circular cylindrical shape and apparatus for the same Jan. 10, 2012
8042370 Flow formed gear Oct. 25, 2011
8042258 Method for producing superconducting acceleration cavity Oct. 25, 2011
7833346 Method and apparatus for manufacturing group III nitride crystals Nov. 16, 2010
7827684 Process for finish-machining crank shafts for motor car engines Nov. 9, 2010
7806679 Drawing apparatus and drawing method Oct. 5, 2010
7797976 Method for the production of a flange on a metal blank, and transmission part Sep. 21, 2010
7721409 Cold formed differential housing with integrated ring gear May. 25, 2010
7644600 Method and device for forming an essentially flat metal blank to produce a thin-walled, shell-type body, and the use of same Jan. 12, 2010
7454936 Method and device for forming an essentially flat metal blank to produce a thin-walled, shell-type body, and the use of same Nov. 25, 2008
7353579 Flange restoring device and method Apr. 8, 2008
7243517 Method and device for deforming a workpiece made of a material having an exponential tensile stress-strain behavior into a thin-walled, hollow shell Jul. 17, 2007
7219520 Method and forming machine for working a workpiece May. 22, 2007
7152446 Method of forming internal gear, and internal gear Dec. 26, 2006
7124609 Spin forming of HVAC duct reducers Oct. 24, 2006
7121128 Method of manufacturing elliptic deep-drawn products Oct. 17, 2006
6955283 Adaptable mandrel for spin forming Oct. 18, 2005
6892521 Slalum chain May. 17, 2005
6880421 Rolled ball screw and method for rolling ball screw groove Apr. 19, 2005
6817219 Flospinning method and device for carrying out flospinning Nov. 16, 2004
6711803 Method of joining steel products, method of processing junction surfaces of steel products, and reinforcing member Mar. 30, 2004
6701617 Spin-forming method for making catalytic converter Mar. 9, 2004
6644083 Spin forming a tubular workpiece to form a radial flange on a tubular flange and a bead or thick rim on the radial flange Nov. 11, 2003
6601284 Composite brake drum and method for producing same Aug. 5, 2003
6571590 Method for producing a rim for a pneumatic tire Jun. 3, 2003
6526794 Plate for the spin drum of a centrifuge with spacers and process for its manufacture Mar. 4, 2003
6381847 Method of manufacturing poly-V-pulley May. 7, 2002
6295854 Device and method for moulding a grooved structure into a tubular workpiece Oct. 2, 2001
6205832 Flow-forming method and apparatus Mar. 27, 2001
6154961 Method for manufacturing an water hammer arrester Dec. 5, 2000
6006569 Method for manufacturing a dome from an undersized blank Dec. 28, 1999
5960661 Apparatus for working a workpiece Oct. 5, 1999
5901595 Apparatus for machining a workpiece May. 11, 1999
5775151 Method and apparatus for spinning a metal sheet Jul. 7, 1998
5758532 Method and apparatus for making a product by spinning Jun. 2, 1998
5718140 Method for manufacturing a rotationally symmetrical work-piece of steel Feb. 17, 1998
5711174 Roll forming method and device Jan. 27, 1998
5471858 Apparatus and process for the production of a hollow workpiece being profiled in a straight or helical manner relative to the workpiece axis Dec. 5, 1995
5428980 Method and apparatus for producing cap for drink bottle Jul. 4, 1995
5355706 Process for the production of a hollow workpiece being profiled at least internally in a straight or helical manner relative to the workpiece axis Oct. 18, 1994
5355705 Process for controlling the revolving path motions of the spinning roller of a spinning lathe, and spinning lathe for performing the process Oct. 18, 1994
5323630 Flow-roller machine Jun. 28, 1994
5220817 Spinning machine with at least one roller holder Jun. 22, 1993
5031296 Machine tool for manufacturing pulleys or wheels Jul. 16, 1991
4976126 Spinning machine Dec. 11, 1990

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