335results about "Cutting tools" patented technology

A system and process for stamping parts having tolerances below 1000 nanometers. The inventive system and process is particularly suited for producing optoelectronic parts. The system includes a stamping press and one or a progression of stamping stations for supporting a punch and die. The stamping stations are designed to maintain substantial alignment of the punch and die with minimal moving components. The stamping station includes a shaft for rigidly guiding the punch to the die. The stamping press is capable of providing the punch with the necessary force to perform the stamping operations. The system includes an interface system for interfacing the force of the press with the punch, while simultaneously structurally decoupling the press from the punch. The system also includes a locating sub-plate, for locating the stamping station in alignment relative to each other, and means for in-line machine stock material before entry into the stamping stations.

A fastener with a recess head wherein the drive head has four lobular recess channels. Each channel comprises a first wall, a second wall, a bottom surface and a recess sidewall. The first and second walls have portions opposing each other and a constant radius of curvature to form a continuously and smoothly forming wall of the channel. A torque producing driver tool is defined with cross sectional signature substantially complementary in size and shape of the recess of the drive head of the fastener for matable engagement. A recess punch for manufacturing the fastener is also defined and comprises a punch holder and a punch pin integral with the holder.

A nicked cutting rule includes a shank portion having two substantially parallel shank side surfaces extending in a direction of length of the rule separated by a thickness of the shank portion. The nicked cutting rule further includes a V-shaped cutting edge portion defined by two cutting edge portion surfaces that intersect at ends remote from the shank portion to define a cutting edge, the cutting edge portion having portions separated in the direction of length of the rule by a plurality of notches extending inwardly from the cutting edge toward the shank portion. The nicked cutting rule also includes an intermediate portion between and integral with the shank portion and the cutting edge portion, the intermediate portion being thinner than the thickness of the shank portion and including two intermediate portion surfaces extending between the two shank side surfaces and the two cutting edge portion surfaces. A hardness of the shank portion, a hardness of the cutting edge portion, the thickness of the shank portion, and the thicknesses of the intermediate portion and the cutting edge portion are selected such that the nicked cutting rule is bendable.

A graphic arts die and support plate assembly is provided that is adapted to be mounted as a unit on the chase of a flat bed or rotary graphic arts press. The assembly includes a plurality of spaced individual dies fixedly mounted in predetermined relative relationship on a support plate member of the unit. Alignment holes in each die that register with orifices in the support plate member are adapted to receive temporary alignment pins thereby assuring correct positioning of the dies with respect to one another on the support plate member until the dies are affixed to the support plate member. Makeready and die lock-up time of the press is significantly decreased because all dies of the assembly may be preregistered with a design artwork before mounting of the die and support assembly on the press. A series of graphic arts die units are also provided that are adapted to be mounted as an assembly encompassing more than 180° of the circumference of a rotary press chase. The graphic arts die units have die support plate members that may be aligned with indicia on the press chase, and that have notch structure receiving a tool for facilitating alignment and spacing between adjacent die support plate members. Cutouts in the die support plate members permit manual selective shifting of a die relative to the die support plate member therefor using a tool received in a cutout and engageable with the die.

A knife sharpener has a housing, a base, a sharpening device and an adjustable device. The housing has a case, a cavity and a slot. The cavity is defined in the case and the slot is defined in the case and communicates with the cavity. The base is mounted on the housing and has a base board and two side walls formed on the base board. The sharpening device is movable mounted on the base and is received inside the housing. The sharpening device has two sharpening arms with sharpening rods. The adjustable device is mounted on the sharpening device mounted between the two sharpening arms. When the knife sharpener is used, the adjustable device is rotated to change the cross-position of the sharpening device. Therefore, a knife may be sharpened at a different site on the sharpening rods for prolonging the life span of the knife sharpener.

A low cost disposable spherical hollow reamer for medical applications includes a reusable shaft and a disposable spherical hollow reamer. The hollow reamer is thin sheet metal with 0.125 mm to 0.812 mm thickness and has plurality of cutters and apertures that extend through its thickness. The shaft has a proximal end for attachment to a drill and a distal precision threaded screw end. The spherical hollow reamer has welded first plate in its interior with a precision threaded aperture engaging with the threaded end of the reusable shaft. The spherical hollow reamer has a welded second plate with a central precision aperture that slides over the shaft external surface. The threaded attachment and sliding fit attachment provides wobble free reaming action. The welded second plate in combination with the interior surface of the spherical hollow reamer forms enclosed space for capturing bone fragment and bone cement debris.

A knife sharpener is provided which is capable of precision sharpening of hunting and similar knives that have a first and second blade face, each of which terminates at a facet that meets the corresponding facet to create the knife edge. At least the first of the blade faces has a lower distinct planar or concave section adjacent the edge facet with the lower planar or concave section of the face being set at an angle to the center line of the blade thickness that is different from the angle of the adjoining upper section of the same blade face located adjacent to the back of the blade. The sharpener includes a sharpening member such as one having an abrasive coated surface. The sharpener also includes a planar angle knife guide surface of a knife guide which is designed for intimate sliding and sustaining contact with the second face of the blade in order to position an edge facet on the first of the faces into precise angular relation with the sharpening surface. The sharpener also includes a knife holding spring that applies force against the first face of the blade predominantly at one or more locations on the lower planar or concave section of the first face that is adjacent to the edge facet being sharpened in order that the lower section adjacent the edge on the second face of the blade is pressured to align with and remain in intimate sliding alignment with the guide surface as the blade edge facet on the first face is being sharpened.

A knife storage and sharpening apparatus including a knife block having a plurality of elongate recesses each for receipt of a different knife and having a recess for receipt of a knife sharpening steel. The apparatus further includes another form of knife sharpening means specifically adapted for receipt in the recess for receipt of the steel. The knife sharpening means can be used to sharpen a knife while it is mounted in the sharpening steel recess. If the knife user prefers to use a sharpening steel, the knife sharpening means may be removed from the knife block to provide storage for the sharpening steel.

A precision punch and die device for punching holes in a ceramic substrate and method of assembling the device. The device comprises a punch which moves relative to the substrate for punching a hole in the substrate and a die assembly including one or more precision die plates and support plates for guiding the punch and punching the substrate.

The invention provides a bit (10) for use with a rotatable tool, said bit including: a shaft (12) having a rearward end adapted to be held by a chuck of the rotatable tool, and a forward end (18) having cutting tips formed thereon; a reaming head (14) including a body having a bore (16) adapted to receive the shaft therethrough in a sliding fit, the body having a plurality of cutting blades (26) formed on at least one peripheral surface thereof; the bore and/or the shaft having formations thereon such that when the rearing head has the shaft operatively located in the bore the reaming head is rotationally locked into the shaft; the reaming head and the shaft being separable from each other to allow either component to be replaced independently of the other. The invention also provides a bit having a tip end and shank end for use with a rotatable tool, said bit having at least 4 blades (24) to engage ard drive a screw when said rotatable tool is rotated, each blade including at said tip end a bevel so as to form a cutter (22) at the extremity of said blade, each bevel and/or cutter being able to cut in the same rotational direction. The invention further provides a method of making a bit for use as a screwdriver and countersinker, said method including the steps of: 1) forming at least a four blade screw driving end onto one end of blank, 2) forming a bevel at the extremity of each blade, said bevel producing an inclined plane cutter.

The invention relates to a method of manufacturing a bushing baseplate, and to a bushing baseplate. The bushing baseplate is characterized in that it comprises tips (18) constituted by hollow tubular elements of outside diameter slightly smaller than the inside diameter of holes (16) in the plate (12) forming the bushing baseplate, which tips are subjected to a step of being expanded radially relative to their axes. The method is simpler and less expensive.

A device for use in the manual sharpening of arrow broadheads, razor blades and the like includes a unique symmetrical clamp and axle assembly having interchangeable, matched pairs of special purpose jaw members for gripping blades of differing configurations. When coupled to the frame, the clamp and axle assembly is freely rotatable, and this free rotation automatically aligns the length of the edge of the blade with the surface of a whetstone. Additionally these rotational and self-aligning capability enable the user to service both sides of the blade's edge with a single blade clamping operation, by manually rotating the clamp 180 degrees between passes along the surface of the whetstone.

A method to manufacture a steel die having a Physical Vapor Deposition wear resistant coating on a profile surface and a steel die formed thereby is disclosed. The steel die is subjected to quenching and tempering to achieve a Rockwell hardness in the range of about 40-45 Rc and then subjected to machining to form a profile surface. The surface is then subjected to Physical Vapor Deposition of a wear resistant coating that may be multiple layers of CrN, AlCrN, TiCrN, TiN, TiCN or TiAlN, and preferably is alternating layers of TiN—TiCN—TiN. The coating is applied at a sufficient thickness to impart wear resistance to the steel die. The steel dies are useful in sheet metal stamping operations.

A method is provided for welding a laminated metal sheet to a workpiece. The laminated metal sheet includes an outer metal sheet and an inner metal sheet bonded together by a polymer material that impedes the flow of weld current. A punch is applied against the outer metal sheet and driven through the laminated metal sheet to create a hole and also create an annular metallic burr that bridges across the polymer material layer between the outer metal sheet and the inner metal sheet. A weld electrode is positioned against the outer metal sheet at the punched hole and weld current is conducted through the first annular metallic burr to create an electric resistance weld between the laminated metal and the workpiece.

A face-gear forging die which can be used to near-net forge face gears is disclosed. The face-gear forging die is constructed from a blank, and is cut to specification using a wire electrical discharge machining (EDM) process. The wire electrical discharge machining process is computer controlled, according to pre-specified instructions. Accordingly, a variety of different-shaped face-gear forging die may be constructed by merely changing the specification's input to the wire Electric Discharge Machining apparatus. The wire Electric Discharge Machining process can also be used to cut the face gear tooth directly, to thereby circumvent the forging procedure. The complex, curved surfaces of the face gear teeth are mathematically approximated with a ruled surface, and the mathematical approximation is input to the wire Electric Discharge Machining apparatus for subsequent execution and forming of the die.

A method is disclosed for marking a socket. The method includes the steps of providing a socket, pressing the socket to make an indented mark, executing thermal treatment on the socket, coloring a portion of the socket near the indented mark to form a printed layer, vibrating and grinding the socket to remove the printed layer from the socket except the indented mark, and electroplating the socket to form a coating on an external side and an internal side of the socket.

A wrench manufacturing process for manufacturing a rotational-tube wrench comprises the steps of forging, annealing, rolling, punching, drawing, polishing, surface grinding, CNC rough cutting, thermal treatment, vibrating, electroplating, CNC fine cutting and assembling. The additional steps of thermal treatment and CNC or MC fine cutting not only enhance the structural toughness of the wrench but also guarantee high degree of roundness for the receptacle space thereof. The CNC or MC fine cutting also provides the inner wall of the receptacle space with fine tool marks so that the confinement strength of a rotational tube without ratchets therein can be significantly enlarged.

A method of making a rotary cutting tool for cutting a web of material comprises the steps of roll forming a first flexible die plate into a cylindrical shape, mounting the cylindrically shaped die plate onto a cylindrically shaped fixture, and machining cutting elements onto the roll formed die plate. The roll formed die plate may then be removed from the fixture and attached to a cylinder. The first die plate can cooperate with a second die plate attached to a second cylinder to cut the thin web of material.

A tool for removing damaged fasteners and a method for making such tool wherein the tool (10) includes a first end (12) and a second end (14) with an outside surface (32) and an inside surface (40) defined between ends (12) and (14). A portion (46) of inside surface (40) is in the shape of an hexagonal frustum (54) that has a major end (58) and that includes spiral splines (25). Splines (25) have constant depth between the major end (58) and the minor end (56) of frustum (54) and the relief angle (£) of splines (25) decreases in the direction from minor end (56) toward major end (58). In the method for making the tool (10), a tubular section (118) is made from a tapered blank (91) by piercing one end of the tapered blank with a pierce punch (132). One end of the tubular section is then driven onto a splined punch (162) to provide splines in one end of the tubular section. The tubular section is then stripped off of the punch (162) by a kick-out sleeve (166) and extruded through a round-to-hexagonal extrusion insert (182) to provide portion (46) of the inner surface (40) with a tapered, hexagonal shape.

A device for punching blanks out of a flat sheet, in particular packaging blanks consisting of cardboard or corrugated cardboard, using a punching tool that is mounted in a carrier plate and projects beyond the plate in the form of a blade or cutting line, in addition to profiled strips, consisting of a material of limited flexibility, which flank the tool. A rail-type profiled channel consisting of a rigid material is located on the carrier plate, running parallel to the punching tool on each side of the longitudinal faces of the latter and one cross-sectional area of the profiled strip is inserted into the profiled channel in a positive fit. In addition, at least one lateral face of the cross-section of the profiled strip has a protuberant base.