Class 451/34 - In at least one of plural abrading steps

Subclass of Class 451 - Abrading
Definition: Method including sequential abrading operations one of which
No. of patents: 25
Last issue date: 04/15/2008

Number	Title	Issue Date
7357697	Superhard material article of manufacture The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube having a longitudinal bore lined with a superhard material, including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness great...	04/15/2008
7303691	Polishing method for semiconductor wafer A polishing method includes a slurry adjusting step for adjusting a polishing slurry containing silica particles so that the number of silica particles having a composition ratio of Si/O of 50–60 wt %/40–50 wt %, a modulus of elasticity of 1.4×1010 P...	12/04/2007
7273409	Process for forming spherical components A process is disclosed for forming a spherical component using a centrifugal processing machine. The process includes the steps of providing a component having an initial shape with at least a portion that is non-spherical, placing the component into a container in ...	09/25/2007
7258833	High-energy cascading of abrasive wear components In accordance with the present invention, a method for manufacturing tungsten carbide components is provided. The method includes forming a composite material out of tungsten carbide powder and binder powder, pressing the composite material into a plurality of compo...	08/21/2007
7070481	Polishing method, polishing device, glass substrate for magnetic recording medium, and magnetic recording medium There are disclosed a polishing method and a polishing device in which cleaning of a glass substrate surface can be achieved to a high level. A glass substrate (MD substrate 1) in the shape of a circular disc having a circular hole in a center portion is poli...	07/04/2006
6921455	Device for polishing outer peripheral edge of semiconductor wafer A polishing machine for a peripheral edge of a semiconductor wafer comprises a rotary mechanism 2 which rotates a stack 1 of semiconductor wafers 4 mounted thereon, and a polishing mechanism 3 which is arranged to be movable in the radial...	07/26/2005
6910948	Needle bearing and method for grinding bearing parts thereof It is an object of the invention to provide a needle bearing which can prevent occurrence of flake and seizure in the bearing parts even under such severe lubricating condition as provided by a compressor for a car air conditioner or a planetary unit for an automati...	06/28/2005
6875081	Method of manufacturing a tool using a rotational processing apparatus A method for forming a tool having a smooth surface finish is disclosed. The method involves the step of first rotating a plurality of tools within an inner vessel at high speed relative to the outer vessel with a first abrasive. The first abrasive is then removed a...	04/05/2005
6833109	Method and apparatus for storing a semiconductor wafer after its CMP polishing In an apparatus, after completion of a CMP (i.e., chemical mechanical polishing) operation of a semiconductor wafer, the thus polished wafer is temporarily stored in a water tank before it is subjected to a post-CMP cleaning operation. During its storage period in t...	12/21/2004
6821359	Yoke compartment of voice coil motor for hard disk drive and voice coil motor using said yoke compartment A deburring method of removing burrs present on the surface of a yoke component, made from a low steel carbon steel, of a voice coil motor for a hard disk drive, includes a first step of subjecting the yoke component to a barrel polishing treatment; and a second ste...	11/23/2004
6808439	Vibratory finisher with blasting nozzle A process and apparatus wherein a bulk quantity of parts is positioned in a channel-like treating chamber which is subjected to vibration to cause the flowable mass of parts to slowly undergo a corkscrew-like tumbling movement. One or more nozzle arrangements are po...	10/26/2004
6367134	Method of producing a ceramic electronic part A ceramic electronic part producing method, in which when a ceramic electronic part having an internal electrode in a ceramic sintered body and having an external electrode connected to the internal electrode at an outside surface thereof is to be produce...	04/09/2002
6280294	Polishing method, polishing device, glass substrate for magnetic recording medium, and magnetic recording medium There are disclosed a polishing method and a polishing device in which cleaning of a glass substrate surface can be achieved to a high level. A glass substrate (MD substrate 1) in the shape of a circular disc having a circular hole in a center portion is ...	08/28/2001
6241588	Cavitational polishing pad conditioner A chemical mechanical polishing system comprising a moving polishing pad and an ultrasonic conditioning head. The head is positioned in close facing relationship to the pad surface and agitates a liquid on the rotating pad surface at an appropriate freque...	06/05/2001
6186868	Chilled temperature polishing method for soft acrylic articles A method of polishing articles comprising soft acrylic materials is disclosed. The method includes a polishing step and a cleaning step. In the polishing step a receptacle is charged with polishing beads of various sizes, alumina, sodium hydroxide, water,...	02/13/2001
6099389	Fabrication of an optical component A method for forming optical parts used in laser optical systems such as high energy lasers, high average power lasers, semiconductor capital equipment and medical devices. The optical parts will not damage during the operation of high power lasers in the...	08/08/2000
6095901	Polishing method for soft acrylic articles A method for polishing articles comprising soft acrylic materials is disclosed. The method includes a polishing step and a cleaning step. In the polishing step, a receptacle is charged with polishing beads of various sizes, alumina, a swelling agent and t...	08/01/2000
6074284	Combination electrolytic polishing and abrasive super-finishing method An abrasive super-finishing method for workpieces, such as metallic thin-film magnetic discs, employs a polishing/texturing material having a backing, such as synthetic resin film or woven material or non-woven cloth, and a layer which can hold abrasive g...	06/13/2000
5873770	Vibratory finishing process A workpiece has at least one exterior surface with an initial average surface roughness (Ir). The profile of the exterior surface is derived by conventional manufacturing processes, some of which leave the exterior surface with irregularities having direc...	02/23/1999
5690538	Method of shaping and polishing jewelry from shells A new Method of Shaping and Polishing Jewelry from Shells for making jewelry from shells thereby providing an aesthetically pleasing piece of jewelry. The inventive device includes grinding a shell approximately into a desired shape, tumbling the shell in...	11/25/1997
5643054	Machine part with improved surface texture for rolling contact and/or sliding contact A machine part includes a surface suitable for rolling contact and/or sliding contact on another machine pad and made by an at least two-stage honing process, with a first honing step effecting a surface texture exhibiting a plurality of peaks and a plura...	07/01/1997
5507685	Method for surface finishing of difficult polish surfaces A method for finishing a surface of a workpiece, having the steps of agitating the workpiece with a first mixture including a first plurality of discrete, homogeneous compressed felt chunks having a first particulate abrasive coating thereon, and then agi...	04/16/1996
5365701	Multi-focal contact lens A tool for forming a soft contact lens having an optical zone formed with a center spherical surface and surrounding aspheric surfaces is disclosed. The tool includes a lens holder having a perfectly centered rearwardly extending cylindrical portion recei...	11/22/1994
4693037	Multistage finishing device and method A vibratory finishing machine for the surface finishing of workpieces comprising an essentially spiral trough, having a plurality of channels in side-by-side relationship, resiliently mounted for vibration and tilted with respect to the horizontal; such a...	09/15/1987
4328077	Method for reforming a used tubular mold for continuous casting In order to reform or rejuvenate a spent or worn tubular mold used for continuous casting, friction bodies are introduced into the hollow mold compartment following the grinding of the inner surface of such mold compartment, the ends of the tubular mold a...	05/04/1982

PatentStorm

Quotables

PatentStorm News

Class 451/34 - In at least one of plural abrading steps