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7578726 |
Method of manufacturing a ceramic surgical instrument
The invention relates to a method of manufacturing a surgical instrument having a rotatable shaft 2 and a working part 1 disposed thereon, the working part having at least one cutting edge,...
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7564363 |
Method and measuring arrangement for monitoring the condition of a grinder stone of a pulp grinder
A method and a measuring arrangement for monitoring the condition of a grinder stone of a pulp grinder. A temperature profile for a grinding surface of the grinder stone is determined substantially...
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7510462 |
Multi-diamond cutting tool assembly for creating microreplication tools
In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted...
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7507149 |
Drill bit dresser
A drill bit dresser having a dresser body, a holding clamp slidably joined to the dresser body, and a sanding shoe pivotally attached to the dresser body. The dresser body has means for changing...
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7488238 |
Emery wheel grinding machine with adjustable drill bit chuck
The emery wheel grinding machine with adjustable drill bit chuck disclosed herein has an adjustable chuck in which is provided with a T-bushing having an outer flange formed at one end thereof. The...
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7479056 |
Automated drill bit re-sharpening and verification system
An automated drill bit sharpening and verification system employing one or more electronic optical assemblies for gathering orientation data of a drill bit to be sharpened. The drill bit is rotated...
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7473163 |
Cutter grinding device
A cutter grinding device has a housing, a motor, a grinding wheel, a holding cap, multiple cutter holding brackets and a cutter clamping assembly. The holding cap is mounted on the housing,...
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7402093 |
Grinding apparatus for buttons on rock drill bit
The present invention relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having a grinding machine carried on an support system that...
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7337672 |
Method for inspecting grinding wheels
This invention discloses a method of evaluating the internal structure of a grinding wheel through ultrasonic inspection.
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7329173 |
Tool grinding machine
A grinding machine, which includes a grinding wheel rotatable by a motor, a first slide movable in X-axis direction, a second slide supported on the first slide and movable in Y-direction, a...
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7300334 |
Drilling-head-grinding positioning device
A drilling-head-grinding positioning device comprises a clamper for clamping a drilling head having a rectangular sliding rod and a sleeve clamping seat installed at a front end of the sliding rod,...
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7207867 |
Precision cemented carbide threading tap
A precision cemented carbide threading tap is designed for use in precision tool holders in synchronous high speed tapping. The precision tap includes a fully cylindrical shank without the aid of...
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7169199 |
Curable emulsions and abrasive articles therefrom
A curable emulsion comprises: an oil phase comprising blocked polyisocyanate and curative; and an aqueous phase comprising at least partially neutralized crosslinked copolymer of monomers...
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7147546 |
Tool holder with moveable alignment finger
Method and apparatus for facilitating sharpening of a tool. A tool holder is provided to present the tool for sharpening against an abrasive member, such as a grinding wheel. A moveable jaw member...
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7144307 |
Point superabrasive machining of nickel alloys
A process for point superabrasive machining of a nickel based material comprising the steps of providing a tool having a grinding surface coated with a superabrasive material, orienting the tool...
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7140815 |
Drill for making flat bottom hole
The present invention is directed to a helical drill configuration that allows substantially flat bottomed holes to be machined. At the cutting end of the body member, there are at least two...
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7104870 |
Modified radial motion (MRM) method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears
The present invention relates to a modified radial motion method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears, which is capable of modifying a locus of a cutter...
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6991522 |
Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine
An object of the present invention is to provide a practical gear and gear train which can be used in an actual gear drive system. Another object of the present invention is to provide a...
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6988859 |
Drill bit and method for grinding a drill bit
The invention relates to a drill bit ( 2 ), having main cutting edges ( 4 a , 4 b ) which are connected together by a transversal cutting edge ( 6 ). An open surface ( 7 ) which extends into a...
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6958004 |
Saw grinding apparatus with improved wear plates
A saw grinder having improved wear plates for allowing the saw grinder carriage to move without having to overcome the resistance caused by contact of the saw grinder wear plates with the...
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6923602 |
Drill having construction for reducing thrust load in drilling operation, and method of manufacturing the drill
A drill including a shank portion and a cylindrical body portion contiguous to each other. The cylindrical body portion includes (a) primary cutting edges and secondary cutting edges formed in its...
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6887125 |
Polishing apparatus, polishing method, control program for causing computer to execute polishing, and recording medium
A polishing apparatus includes a table on which a polishing target member is placed, and at least one nozzle which sprays a polishing solution to a surface of the polishing target member so as to...
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6824449 |
Clamping assembly
An apparatus for clamping a workpiece in a machine. The apparatus comprises an inner nose portion being rotatable about an axis of rotation and comprising a plurality of mounting surfaces, and, an...
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6808441 |
Dental tool sharpener and method of use
A dental tool sharpener is disclosed having a base. A grinding surface is rotatably attached to the base about a fixed axis, the axis of rotation being perpendicular to the base. a positioner is...
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6808440 |
Method of grinding cutting blades
A method of grinding cutting blades with a grinding wheel having first and second grinding edges. The method comprises rough grinding at least one surface of the cutting blade with the first...
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6769965 |
Drill bit pointing and dirt removal apparatus and method
An apparatus for pointing twist drill bits includes a processing unit which has a rotary index plate on which are mounted a plurality, e.g., five, of drill bit holders which are circumferentially...
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6712675 |
Method for grinding at least one surface on a cutting knife used in machining, use of said method and grinding wheel used to carry out said method
A grinding wheel ( 28 ) that rotates around an axis and that has a working area consisting of an annular surface with a circular arc profile in axial cross section is used to first generate a...
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6709318 |
Dual-grinding method for bar blades and grinding disc for carrying out said method
A grinding wheel and a method for grinding bar blade for the production of spiral gear teeth are described. For economical grinding of such bar blades the grinding wheel has a conical grinding...
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6688817 |
Drill for drilling, a method for making a drill for drilling, and a cutting tool
A method of making a drill comprising a tip ( 16 ), a shank ( 10 ) and a flute area having chip spaces ( 12, 14 ) formed therein, the drill being substantially completely coated with a hard...
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6687566 |
Method of machining a female screw and dressing a grinding wheel for female screw machining
The present invention provides a method of machining a female screw groove in a workpiece whereby the spindle of an internal grinding wheel for machining the workpiece into a female screw is tilted...
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6676500 |
Drill bit sharpener
A drill bit sharpener includes a motor assembly and a drill bit grinding assembly. The motor assembly has a motor with a drive shaft to drive the drill bit grinding assembly, which includes a...
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6672942 |
Grinding machine for welding electrodes
A grinding machine for welding electrodes comprises a housing 1 , grinder motor 2 , grinding disk 3 , swing plate 4 , holder guide 6 , electrode holder 7 , electrode turning motor 8 and...
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6666753 |
Silver-coated abrasives, tools containing silver-coated abrasives, and applications of these tools
Flute grinding cemented carbide workpieces with a diamond containing resin bond grinding wheel is improved by restricting the diamond to comprise a silver-coated diamond; conducting the grinding in...
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6633379 |
Apparatus and method for measuring the degradation of a tool
A machining apparatus ( 10 ) comprises a material removing tool ( 12 ) movably mounted for removing material from a workpiece ( 14 ); means for illuminating ( 42, 54 ) a sample area upon a tool...
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6632123 |
Grinding of cutting tools with wavy cutting edges
A CNC tool grinding machine has at least one rotatable grinding wheel ( 1 ) movable relative to a workpiece ( 2 ) for grinding a flute surface ( 3 ) of a blade in the workpiece ( 2 ). The machine...
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6585460 |
Drill having machine grindable cutting edge
A drill having a cutting edge that is less prone to chipping or fracturing when used in drilling operations, and that can be sharpened or resharpened uniformly and consistently from drill to drill...
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6450864 |
End mill grinder with two independently adjustable grinding wheels
An end mill grinder have two independently adjustable grinding wheels. The end mill grinder includes two grinding wheels which are located next to each other. Each grinding wheel is rotated by a...
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6419562 |
Method and apparatus for sharpening drill bits
This invention results from the realization that a drill bit can be positioned for sharpening without using the flawed tip as a reference point allowing the drill bit to be sharpened with an...
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6398901 |
Sharpening guide assembly configured for wear resistance and method of manufacturing same
A sharpening guide assembly for use in sharpening ski and snowboard edges includes an angle member and at least one riser member. The angle member includes at least a first outer surface and a...
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6390892 |
Method and device for non-circular contour milling with a conical grinding wheel
Described is a method for the cutting machining of non-circular contours using a tool in the shape of a cone or a truncated cone positioned on a spindle for rotation, said spindle aligned at a...
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6386954 |
Thread forming tap and threading method
It is an object of the invention to provide a thread-forming tap to which a chamfer can easily be mounted, and a general threading method. The thread forming tap of the invention has a threaded...
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6371835 |
Off-line honing of slicer blades
An apparatus and method for honing, sharpening or grinding a curved peripheral cutting surface of a slicer blade are provided. Included is the use of one of a set of interchangeable cams that...
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6306017 |
Method and machining tool for producing helically profiled workpieces
For producing hectically profiled workpieces (1) the helical profile (2) is first of all prefabricated by a milling treatment and is then finished by a grinding treatment of the profile surface. To...
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6287177 |
Method of and apparatus for high tolerance brush honing
The present invention relates to a honing method and apparatus which provides greater control over the edge shape, as well as reductions in the effort required to hone multiple edges on workpieces....
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6283830 |
Grinding control unit of a tool bit grinder
A grinding control unit installed in a tool bit grinder and adapted to control the feeding of a bit relative to a grinding wheel of a grinding unit of the tool bit grinder, the grinding control...
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6234881 |
Grinding machine for forming chip-producing cutting tools
Cylindrical surface regions (1) of cutting tools (2, 21), such as drills, boring tools, reamers or the like, that is, cutting tools formed with chip removal grooves or flutes or recesses (6), are...
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6224468 |
Apparatus and method for sharpening a disc blade
An apparatus and method for sharpening a disc blade includes a grinding wheel mounted on a housing. The housing is mounted on a drive shaft so that the housing rotates with the drive shaft but can...
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6213159 |
Sharpening device for the cutting knife of a face-to-face weaving machine
A sharpening device for the cutting knife (12) of a face-to-face weaving machine, comprising a belt-shaped sharpening means (4) of a flexible material provided with a sharpening face that is so...
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6190097 |
Self-centering drill bit with pilot tip, and process
Significantly improved resistance to breaking while drilling in metal can be realized in twist drill bits having a web thickness taper which is about twice the web thickness taper specified in...
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6190242 |
Universal grinding machine
A universal grinding machine having a plurality of workpiece holders, each of which can be moved independently of each other or jointly, by a separate slide, in the longitudinal direction of the...
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