Abstract: This invention relates to a cutting system for cutting food products while the food products are conveyed by a conveyor. An arc-shaped system and a cutting means are provided, where the cutting means is adapted to be connected to the arc-shaped system. The arc-shaped system is adapted to be positioned above a surface area of the conveyor on which said food products are resting during the cutting such that the center of the arc-shaped system is around the surface area. A control unit operates the position of the cutting means within the arc-shaped system based on image data.

Abstract: The invention relates to methods and systems for preparing a cutting path for machine cutting of a plurality of parts from a sheet material using beam cutting technology. Each one of the plurality of parts is formed by one of a plurality of two dimensional free form shapes, comprising at least a first shape. The method comprises a step of identifying at least one segment of the first shape, which segment prevents a part of the first shape to be positioned and cut so close to another shape in the plurality of shapes so that only one cut of the cutting beam is found between the parts. The method further comprises a step of modifying the segment to provide a modified first shape. The modified first shape comprises a modified segment, which is configured such that the modified segment allows a part of the first shape to be positioned so close to another shape in the plurality of shapes so that only one cut of the cutting beam is found between the parts whenever the shape of the parts allows it.

Abstract: A tool includes first and second tool parts that move toward one another, at least one processing device provided on the first tool part, and at least two counter devices provided on the second tool part. The processing device and the counter devices are rotatable relative to one another about at least one positioning axis, and the counter devices are aligned relative to one another along a direction of relative rotational movement of the processing device and the counter devices. The processing device and a first counter device are allocated to one another by at least a first defined processing parameter, and the processing device and a second counter device are allocated to one another by at least a second defined processing parameter. The first processing parameter is different than the second processing parameter.

Abstract: A method for punching and straightening sheet metal in a punching machine includes the steps that a die is accommodated in a first tool holder of a punching machine, an upper tool part with a stamp is accommodated in a second tool holder, and a sheet metal is positioned between the stamp and the die at a location to be machined. The stamp comprises an end face at an end opposite to an accommodated end of the upper tool part, wherein a bevel has an angle and a height extending from a rim of the face to the end face. Then, a punching operation is performed by the stamp, wherein radial forces are simultaneously applied to the sheet metal during cutting so that an evenness of the sheet metal is maintained even at high grades of punching.

Abstract: A moving unit of a sheet cutting device is movable in a sheet width direction perpendicular to a sheet feed direction in which a sheet of recording media is fed along a sheet feed path. A cutter holder accommodates a cutter, is connected to the moving unit and is rotatable in a thickness direction of the sheet relative to the moving unit. A guide member is disposed along the sheet width direction to guide the moving unit in the sheet width direction. A drawing member is mounted on the moving unit to draw the moving unit toward a downstream side in a cutting direction in which the cutter holder moves to cut the sheet. The moving unit is connected to the cutter holder at a position downstream in the cutting direction from an accommodated position of the cutter in the cutter holder.

Abstract: In a method for slicing food products, a cutting blade carries out a primary movement defining a cutting plane and a product to be sliced is supplied to the cutting blade by means of a conveying device to bring the product into engagement with the cutting blade. The cutting blade moved is from time to time at a speed different from the speed of the primary movement while it is in engagement with the product.

Abstract: A nibbler assembly includes a punch and a die. The die includes a through opening formed therein, which opening has an oblong configuration as viewed along a vertical direction. The die includes an upper surface including a recess extending from an upper peripheral portion of the through opening at an upstream side of a feed direction towards the upstream of the feed direction. The recess is dented downwardly relative to other portions of the upper surface. The punch includes a blade substantially matching in shape with the through opening. The blade includes an upstream end portion in the feed direction provided with opposite corners each having an arcuate shape as viewed along the vertical direction. The punch and the die are operable to punch successive holes that at least partially overlap along the feed direction so as to form an elongated hole in a sheet material.

Abstract: A material which exhibits auxetic characteristics and control of thermal expansion characteristics while experiencing significant stress reduction is disclosed. The material has a repeating pattern of void structures along both lateral symmetry lines and longitudinal symmetry lines.

Abstract: Methods and systems to drive rotary presses are described. In one described example, a rotary press system includes a first rotary press and a second rotary press adjacent to the first rotary press. The first and the second rotary presses are to receive a strip of material. A drive member is operatively coupled to the first and the second rotary presses and a motor coupled to the drive member rotates the drive member to cause the first and second rotary presses to process the strip material.

Abstract: A method of controlling robot motion for small shape generation is provided. The method includes the steps of: a) providing a robot having a plurality of interconnected distal links with a respective plurality major axes and a respective plurality of minor axes, the robot having a controller for moving the robot to a starting position and along a path including a series of interpolated positions to be followed relative a workpiece; b) moving the robot to the starting position; c) determining a next interpolated position on the path, wherein the robot remains fixed in position about at least one of the major axes and a location and an approach vector of the next interpolated position can be achieved; and d) moving the robot to the next interpolated position. A method where the robot remains fixed in position about all major axes is also provided.

Abstract: A method for manufacturing a flexible substrate includes punching out a flexible substrate from a flexible tape wherein the flexible substrate has a first contour that is a part of a contour of the flexible substrate, and a second contour that is a remaining portion of the contour other than the first contour, and requires a punching accuracy lower than a punching accuracy of the first contour.

Abstract: A method involves creating a recess in a surface of a part so the recess is adjacent a portion of the part, thereafter forming a coating on the surface of the part with a portion of the coating being disposed in the recess, and thereafter removing material of the portion of the part with a tool. According to a different aspect, an apparatus includes a recess-forming section that forms a recess in a surface of a part so the recess is adjacent a portion of the part, a coating section that forms a coating on the surface of the part with a portion of the coating disposed in the recess, and a material-removing section that subsequently removes material of the portion of the part with a tool.

Abstract: A method for cutting a honeycomb molded body includes applying laser in a wavelength range of from about 0.7 ?m to about 2.5 ?m to the honeycomb molded body to form a cut guide groove on a periphery of the honeycomb molded body. The honeycomb molded body is made of a material including silicon carbide. The honeycomb molded body is manufactured by extrusion molding. The honeycomb molded body has a number of cells, a cell wall interposed between the cells and a peripheral wall formed on a side face of the honeycomb molded body. The cells are placed in parallel with one another in a longitudinal direction of the cells. The honeycomb molded body is cut along the cut guide groove to a predetermined length using a wire.

Abstract: A nibbler assembly includes a punch and a die. The die includes a through opening formed therein, which opening has an oblong configuration as viewed along a vertical direction. The die includes an upper surface including a recess extending from an upper peripheral portion of the through opening at an upstream side of a feed direction towards the upstream of the feed direction. The recess is dented downwardly relative to other portions of the upper surface. The punch includes a blade substantially matching in shape with the through opening. The blade includes an upstream end portion in the feed direction provided with opposite corners each having an arcuate shape as viewed along the vertical direction. The punch and the die are operable to punch successive holes that at least partially overlap along the feed direction so as to form an elongated hole in a sheet material.

Abstract: A forming method for applying a continuous punching to a chain roller includes a raw block having a first surface and a second surface. The raw block would be sequentially punched and formed throughout the first to sixth punching or throughout the first to seventh punching. During the fourth punching, a first blanking would be executed. Alternatively, before executing the sixth or the seventh punching, a second blanking would be implemented.

Abstract: A method and apparatus are provided for continuously producing a polymer pellet efficiently in which, in storing, transporting or feeding to a processing apparatus, the obtained pellets containing the adhesive polymer do not easily mutually adhere, and handling thereof is excellent. The method comprises a step of deforming at temperatures of about 30 to 150° C. under pressure an adhesive polymer coated with a thermoplastic polymer, and a step of cutting the deformed portion of the coated polymer.

Abstract: A fluid distributor apparatus includes a body having distribution ports (35, 37, 39, 62, 63); a spool adapted for controlling said distribution ports and mounted sliding in a first sliding seat obtained in said body and communicating with said distribution ports; a copying-member mounted sliding and sealed in a second seat obtained in said spool; and supply means for a controlled supply of said fluid to said second seat, so that said copying-member slides in a controlled way. Said supply means include also chamber means containing said fluid and communicating with said second seat, and pushing means of said fluid mounted sliding and sealed in said chamber means.

Abstract: A razor head has blade members with straight front cuffing edges which are mutually parallel and lie in a cutting plane. Imaginary median surfaces of the blade members are continuously curved from the cutting plane, from the cutting edges toward the rear edges. The razor has a handle with a pair of fork arms, the distal ends of which are connected to the head at positions adjacent the respective ends of the head. Each fork arm has a groove allowing pivoting of the distal end about a pivot axis parallel to the head axis but which does not pass through the razor head. Each groove is filled with a resiliently deformable material which is deformed when a pivoting force is applied to the razor head during shaving and which restores the razor head to a normal position when the force is removed.

Abstract: The present invention discloses a method for cutting a large-size wafer and an apparatus for the same. The method of the present invention decreases the frequency of wafer transmission to reduce wafer damages, wherein a wafer is always carried by an identical working susceptor, and the working susceptor is moved to the related devices performing corresponding works, or wherein a wafer is always carried by an identical working susceptor, and the related devices are moved to the working susceptor to perform corresponding works.

Abstract: There is provided a method of cutting a sheet S stuck on a semiconductor wafer W having a notch N in an outer circumferential portion in accordance with a plane shape of the semiconductor wafer W. The cutting operation is carried out by using a sheet cutting device 10 mounted with a cutter blade 13 on its free-end side. The cutter blade is arranged so as to be positioned at a first insertion depth via a displacement mechanism when cutting the sheet S in an area other than an area formed with a notch N; and at a second insertion depth shallower than the first insertion depth to cut the sheet S in an area formed with the notch N.

Abstract: Disclosed are a display window in which a recess having a smooth surface is formed and method of producing the same. A recess having a smooth surface, which may look visually convex, is formed in the window of the present invention. Therefore, an external appearance of the window is beautiful. Furthermore, the recess and the through-hole are formed at a location in which the speaker is installed. Accordingly, a mobile phone assembly process can be simplified and become efficient. Meanwhile, in the method of producing the window according to the present invention, the recess is formed to have a circular bite. It is therefore possible to obtain a recess having a smooth surface. Furthermore, since the recess is processed during the plate process, a window having a high hardness, a good transparency, and a variety of shapes can be fabricated.

Abstract: A sheet punching apparatus includes a puncher having a plurality of punching blades to punch a sheet, and a press member provided in the puncher to be spaced from the punching blade by a specified distance, and when punching is performed on the sheet, the sheet is pressed by the press member.

Abstract: The present invention is an educational toy and puzzle. The user of the invention is given multiple patterns, preferably paper patterns. Each pattern can be assembled into a box and then each box may be connected or interlocked, with the resulting combination of blocks producing a specific result, while at the same time will allowing the user to creative. In doing so they the user, likely a child, will sharpen their own problem solving skills all while learning hand-eye-coordination and dexterity in a fun and unique new way. In the most basic terms the invention can be characterized as building blocks. Building blocks that when interlocked or connected with additional such blocks build an overall image, design or series of words on the surface by adjoining the blocks side by side, as one would typically place puzzle pieces side by side, so as to create the desired resulting display configuration.

Abstract: The invention relates to a process and a device for producing a contour of a planiform piece, intended, in particular, for the internal trim of motor vehicles, in which the piece (1) is cut to define at least an apex (2) of the contour (3), having a given profile P, and a side (4), or so-called first side, of the contour (3) extending from the apex (2). According to the invention, there are carried out sequentially: on one hand, cutting of the piece (1) to produce simultaneously at least the apex (2), according to the profile P, and to cut the first side (4) over a portion, referred to as a fraction F, of its length extending from the apex (2); on the other hand, at least another operation of cutting the piece (1) to produce the first side (4), including at least a portion at least of the fraction F.

Abstract: The invention provides a cutting method and a cutting apparatus that cuts without chipping a composite material consisting of laminated layers of crystal material and amorphous material, in which the amorphous material is cut with an ultrasonically vibrated cutting blade and the crystal material is cut with a cutting blade that does not ultrasonically vibrate. With such a method and apparatus, the crystal material portion and the amorphous material portion of the composite material can be cut cleanly without chipping.

Abstract: A method of cutting an elongate timber web which forms on each of two opposed ends thereof a tapered end shape including a series of at least four cuts at successive angles to approximate an arcuate convex end. The method includes the steps of performing first and second passes of the web through a saw having cutter groups at adjustably spaced apart locations, each cutter group having at least two cutters (101, 102, 103, 104) set to angles so that the cutters of each cutter group correspond to a subset of said series of cuts (201, 202, 203, 204) at a respective end of the web. The web is rotated between the passes, the rotation between passes and the cutter settings together result in a multi-faceted end cut.

Abstract: An apparatus for cutting and nibbling a sheet metal (3) in coil form comprises pulling devices for pulling the sheet metal, which is delivered from a delivery bobbin or coil, and are driven by a pair of overlapping rollers (12), the sheet metal being adapted to intermittently advance, stop and move backward, the sheet metal being processed by machining heads (15,16), which are arranged at the top and bottom portions of the sheet metal and are designed for transversely move with respect to the sheet metal feeding direction.

Abstract: A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band includes portions adapted to engage an annular bead on the container. The bridges are formed by using a primary knife having an interrupted cutting edge to produce a circumferential score in the side wall of the closure leaving spaced connectors or bridges followed by using a secondary knife having a continuous cutting edge to provide a continuous external score line and an accurately dimensional radial thickness of the bridges. In a preferred method and apparatus, the closures engage the successive primary and secondary knives and are moved such that the closures roll relative to the knives.

Abstract: A method of manufacturing a speed ring in a continuous process using a magnetizing fixture and a trimming fixture. An unmagnetized magnetic strip is fed into the trolley of a magnetizing fixture, clamped stretched, and magnetized by a coil. The newly magnetized strip is then cut and fed into a trimming fixture. As the magnetized strip goes through the trimming fixture, it runs over a hall effect sensor which determines where a center of a pair of poles is located. Based on where a pair of poles is located the cutting blade of the trimming fixture is activated and a magnetic strip that can be turned into a speed ring is created.

Abstract: A bar notch (3) in the side of a side member (1) and a shaping cut (4) at the end of a cross member (2) for the bar jointing of a side member (1) with a member (2) in workpieces of wood, plastics or MDF—medium density fiberboard—produced by a punching or shearing operation consisting of a first step—a preliminary cut—and a second step—a final cut. A machine for implementation of the cutting operation comprises a knife head (9) for two side knives (10) and a nose knife (11), a table (14) and a rest (13), a first set of adjustable guide members (17) that can set the position of the knife head (9) in relation to the workpiece (1) or (2) which is to be processed, a second set of adjustable guide members (23) for setting of the mutual distance between the cross member notches (3) and a third guide member (29), which can serve as an end stop for the end of the cross member (2) during the shearing process of a cross member shaping (4).

Abstract: A machine for the multi-stroke, continuous slotting of plate-shaped workpieces and especially sheet metal plates is described. A slotting tool (16) and the workpiece are movable in a forward direction relative to each other in a gate-cutting function and in at least one subsequent slot cutting stroke. This is followed by a return movement in the opposite direction (32) over a return length (A) that corresponds at a maximum to the length of the previously laterally cut slot. This is followed by a cross-cutting stroke in which the strip of material (31) that was laterally cut in the gate-cutting function and the minimum of one subsequent slotting stroke is severed at a distance from the point of its connection to the remaining workpiece. The slotting tool (16) is driven by a cam drive with a drive control, a return-drive system with a return-drive control and a forward-feed drive system with a feed-drive control.

Abstract: A method and machine for the multi-stroke, continuous slotting of plate-shaped workpieces and especially sheet metal plates are described. As part of a method for the continuous multi-stroke slotting of plate-shaped workpieces, a slotting tool (16) and the workpiece are moved in an advance direction relative to each other in a gate-cutting function and is at least one subsequent slot cutting stroke. This is followed by a return movement in the opposite direction (32) over a return length (A) that corresponds at a maximum to the length of the previously laterally cut slot. This is followed by a cross-cutting stroke in which the strip of material (31) that was laterally cut in the gate-cutting function and the minimum of one subsequent slotting stroke is severed at a distance from the point of its connection to the remaining workpiece.

Abstract: A method and system of cutting parts from sheet material is disclosed. The system identifies critical segments of the cutting path where cutting difficulties may arise and modifies the data that guide the cutting tool for more accurate cutting through the critical segments. In particular, the system identifies segments of the cutting path proximately close to one another called “common line segments” and generates a optimized cutting path using a single pass to cut common line segments and minimizing total cutting time, including dry haul time. The method and system of the present invention provide an optimal cutting path and control of a cutting tool resulting in higher quality cut pieces and the higher throughput. Therefore, the method disclosed allows for and makes desirable the close nesting of templates without buffers.

Abstract: In a method for scanning and cutting sheet-type work material carried on a support surface, the work material is automatically scanned to determine a periphery thereof and to allow for the detection of any flaws within the periphery of the work material. The layout of a marker is then established on the work material and a nesting process for pattern pieces is begun. A first pattern piece is nested onto the work material and a subsequent pattern piece is also nested onto the work material while the first pattern piece is simultaneously cut therefrom. These steps are repeated until all of the pattern pieces are cut from the work material.

Abstract: A rotary punching apparatus for punching openings in a moving web workpiece the openings having a predetermined length along the longitudinal axis of the web and having a pair of die assemblies located on opposite sides of the path of the web and a drive for rotating the assemblies, a leading die mounted on one assembly, and being moveable for generally radially so as to punch a die opening through the web, a mating die recess punched in the other of the assemblies; and, a trailing die adjacent to the leading die, being located to punch the web at a point adjacent the punched die opening so as to punch a second die opening in the web, the first die opening and the trailing die opening together defining a continuous opening having a predetermined length along the web. Also disclosed is a method of rotary punching by use of such apparatus.

Abstract: A method for making tiles from plates (1) includes the steps of: making a set of first parallel grooves (2), having a bottom (8) and carried out in the thickness of each plate (1), on the fixing face (3); making at least a set of second parallel grooves (4), having a bottom (5) and carried out in the thickness of each plate (1), on the fixing face (3) and forming an angle (Z) different from zero with the first set of parallel incisions (2); making a set of first through cuts (6) in correspondence of the bottoms (5) of each second groove (4) in order to obtain series of tiles (10) joined only at one side; each first cut (6) having a width smaller than the width of the corresponding groove (4); making a set of second cuts (7) in correspondence of the bottoms (8) of each first groove (2) obtaining separate tiles (10); each second cut (7) having a width smaller than the width of the corresponding groove (2); tumbling the tiles (10).

Abstract: A method and machine for the multi-stroke, continuous slotting of plate-shaped workpieces and especially sheet metal plates are described. As part of a method for the continuous multi-stroke slotting of plate-shaped workpieces, a slotting tool (16) and the workpiece are moved in an advance direction relative to each other in a gate-cutting function and is at least one subsequent slot cutting stroke. This is followed by a return movement in the opposite direction (32) over a return length (A) that corresponds at a maximum to the length of the previously laterally cut slot. This is followed by a cross-cutting stroke in which the strip of material (31) that was laterally cut in the gate-cutting function and the minimum of one subsequent slotting stroke is severed at a distance from the point of its connection to the remaining workpiece.

Abstract: Disclosed is a method for forming a micro groove on a PDP mold by preparing the PDP mold using a steel-based mold and rotating a CBN metal bond blade at a high speed to form the micro groove on a surface of the PDP mold at multiple steps, thereby increasing a precision thereof and reducing a manufacturing cost.

Abstract: An apparatus for cutting and matching parts in a layup of material that includes a cutter tool for cutting the parts and a camera for detecting and analyzing match points located on the individual parts that need to be matched to other parts. The apparatus also includes a computer having instructions for optimizing a process for matching various parts in the layup resulting in an increase of effective usable area of the cutter table and in increased efficiency in use of material in the layup. The computer includes instructions to direct the camera to process match points that are disposed within a tool offset, defined as a distance between the cutter head and the camera, prior to advancing the layup to a takeoff end of the cutter table.

Abstract: A method and system of cutting parts from sheet material comprising a numerically-controlled cutting system having a cutting tool for cutting along a path, the method comprising the steps of: (a) placing a plurality of templates which define the shapes and sizes of the parts to be cut upon the sheet material while minimizing the spaces between the templates to form a closely-packed marker; (b) entering the marker into a pre-processor; (c) detecting common lines and tangencies between templates in the marker; (d) determining a path and speed for said cutting tool; and (e) directing the cutting tool in accordance with the path and speed such that the parts are cut from the sheet material. The pre-processor identifies critical segments of the cutting path where cutting difficulties may arise and modifies the data that guide the cutting tool for more accurate cutting through the critical segments.

Abstract: An apparatus for cutting and matching parts in a layup of material includes a cutting tool for cutting the parts and a camera for detecting and analyzing match points located on the individual parts that need to be matched to other parts. The apparatus also includes a computer having instructions for optimizing a process for matching various parts in the layup resulting in an increase of effective usable area of the cutter table and in increased efficiency in use of material in the layup. The computer includes instructions to direct the camera to process match points that are disposed within a tool offset, defined as a distance between the cutting tool and the camera, prior to advancing the layup to a take-off end of the cutter table.

Abstract: A method for dicing small devices including MEMS, ink jet printheads, lasers etc. The method comprises making a first pass cut into a substrate with a blade of narrow kerf and having long wear characteristics. This first pass cut is then followed with a polishing blade of wider kerf having desirable smooth cutting qualities.

Abstract: The substrate sawing process for a strip mainly includes multi-alignment corresponding to a plurality of substrate areas of strips which are arranged side-by-side on a plate. A saw machine is mechanically moved to the substrate areas and is positioned by the alignments of corresponding substrate areas for cutting the substrate areas of the strips in the first phase. Then the saw machine is further mechanically moved to the substrate areas again and is positioned by the alignments of corresponding substrate areas again for cutting the substrate areas of the strips in the second phase. Therefore, an error in any of the substrate areas in the first phase and second phase cannot add to the peripheral substrate areas.

Abstract: A concrete cutting saw and the process of using the concrete cutting saw for making a 45° chamfer cut at an edge of a 90° cut through a concrete wall. The process includes the steps of cutting a 90° cut through a concrete wall with a 90° saw mounted on a trolley riding along a track affixed to the concrete adjacent the cut. The 90° blade is lifted so that it is above the wall surface and a chamfer saw assembly is affixed to the frame. Next, the chamfer saw motor is started and the saw is lowered into a cutting position and the trolley is once again moved along the track, thereby forming a 45° chamfer along the edge of the cut. The apparatus utilizes a chamfer saw frame affixed to the trolley frame after the 90° saw blade has been lifted. The chamfer saw frame is mounted so that it is directly in the position which the 90° saw occupies when the 90° saw blade 16 is in a cutting position.

Abstract: A novel design and method of manufacturing confetti uses an interior cutout type die-cutting process. The resulting die cut confetti has unique and unusual aerodynamic features creating visually pleasing flight patterns. The predominant descent pattern of this new confetti is a hover action. The confetti rocks slightly back and forth during its descent but primary remains parallel to the ground.

Abstract: A method for punching a template is provided comprising the steps of partially punching the template by applying a first punch to a first surface of the template to form a recessed portion thereof and by applying a first die to a second surface of the template to form a projected portion thereof, so as to produce a first shear plane connected with the first surface on a peripheral surface of the recessed portion and a second shear plane connected with the second surface on a peripheral surface of said projected portion; returning the projected portion so as to be substantially aligned with the recessed portion by holding the first surface and the second surface between a second punch and a second die; and fully punching the template by applying a third punch to the second surface and a third die to the first surface to as to produce a third shear plane connected with the second surface on a peripheral surface of the recessed portion and a fracture plane connected between the third shear plane and the first sh

Abstract: A process and apparatus for cutting up an element used in the construction of a nuclear installation for dismantling. The element is placed on a support and pushed toward a shearing tool having a blade pitch angle of 30.degree.. As the element is pushed, the blade performs a first shearing operation. Then a releasing stop controlled by a jack releases the element from the blade. Operation continues until the element is cut up.

Abstract: An apparatus for punching out pockets in a roller cage for rollers is provided with two simultaneously movable male dies whose outer cutting edges in the circumferential direction are spaced apart from one another by at least about 0.4 times the cage diameter. These male dies are preferably operative from the interior of the cage and each punches slightly more than half the pocket width. By indexing the cage by one pocket division each time, the pockets are punched out completely. In each punching increment, they receive the runup face for the roller over their entire length, which runup face need not be further machined.

Abstract: A machining tool beveling the edges of workpieces such as sheet metal is movable relative to the workpiece in the feed direction along the edge of the workpiece and in an action direction perpendicular to the feed direction. It has at least two adjacent cutting edges extending in the feed direction, one of which is the leading edge and the other of which is the trailing edge which is offset from the leading edge. The trailing cutting edge will effect a further cut in the workpiece as the tool is moved along the edge of the workpiece and reciprocated against its edge portion.

Abstract: A method for punching a template is provided comprising the steps of partially punching the template by applying a first punch to a first surface of the template to form a recessed portion thereof and by applying a first die to a second surface of the template to form a projected portion thereof, so as to produce a first shear plane connected with the first surface on a peripheral surface of the recessed portion and a second shear plane connected with the second surface on a peripheral surface of said projected portion; returning the projected portion so as to be substantially aligned with the recessed portion by holding the first surface and the second surface between a second punch and a second die; and fully punching the template by applying a third punch to the second surface and a third die to the first surface to as to produce a third shear plane connected with the second surface on a peripheral surface of the recessed portion and a fracture plane connected between the third shear plane and the first sh