Abstract: A method carries out a switchover of an on-load tap-changer using a drive system. The drive system includes at least one motor which acts on a drive shaft, a control device and an encoder system which is directly or indirectly coupled to the drive shaft. The method includes receiving a signal for switching the on-load tap-changer from the control device; determining by the control device whether switching to a current tap was performed from an upward or downward direction, and whether switching will be performed to a next tap in the upward or downward direction; selecting, on the basis of the determination, one of a plurality of travel profiles for the drive system of the on-load tap-changer, on the basis of which the switchover is carried out; and carrying out and monitoring the switchover by the drive system according to the selected travel profile.

Abstract: A workpiece processing device includes a workpiece supporting unit configured to support a workpiece so that the workpiece is rotatable around a first axis parallel to a central axis of the workpiece, a cutting unit having a blade configured to cut a surface of the workpiece, a detecting unit configured to calculate a position of a vertex of the surface in a direction along a second axis which is perpendicular to the first axis and parallel to the blade, and a control unit configured to control the workpiece supporting unit so that a cutting position on the surface is located at a vertex in the direction along the second axis, and relatively move the workpiece supporting unit and the cutting unit so that an incision direction of the blade is on a plane defined by the central axis and the cutting position, thereby forming a groove at the cutting position.

Abstract: An apparatus to process a plurality of electrical wires as well as a method that uses the apparatus are indicated. The apparatus includes a feed device, a stationary holding device, a holding device that is non-stationary along a linear guiding direction, a non-stationary bundling device that is separate from the non-stationary holding device and a controller connected to a drive of the non-stationary bundling device. The stationary holding device and/or the non-stationary holding device are configured to twist the respectively held end of the wires; The controller controls the drive in such a way that a distance between a bundling segment of the non-stationary bundling device and the non-stationary holding device assumes a specified or a specifiable distance.

Abstract: A workpiece processing device includes a workpiece supporting unit configured to support a workpiece so that the workpiece is rotatable around a first axis parallel to a central axis of the workpiece, a cutting unit having a blade configured to cut a surface of the workpiece, a detecting unit configured to calculate a position of a vertex of the surface in a direction along a second axis which is perpendicular to the first axis and parallel to the blade, and a control unit configured to control the workpiece supporting unit so that a cutting position on the surface is located at a vertex in the direction along the second axis, and relatively move the workpiece supporting unit and the cutting unit so that an incision direction of the blade is on a plane defined by the central axis and the cutting position, thereby forming a groove at the cutting position.

Abstract: A method for forming a panel for an assembled product including, such as a furniture product, wherein the method includes: displacing the first panel in a feeding direction by a conveyor through a first edge machine, working, by a first tool of the first edge machine, on a first edge of the first panel to obtain a decided location of the first edge, attaching, by a second tool of the first edge machine, a covering material, such as a laminate strip, a thermoplastic strip or a veneer strip, on the first edge, and forming a first edge groove, by a third tool of the first edge machine, along the first edge and on a first main surface of the first panel, wherein the first edge groove is configured to be a part of a locking device.

Abstract: The present invention refers to a grooving device comprising grooving means for realizing a grooving line on a sheet, said grooving means comprising: —A first and a second blade-holder support arranged one opposite the other in such a way as to allow the application of a first and of a second blade, one facing the other according to a pre-determined penetration angle (tt) in the sheet, said first and said second blade-holder support being eliding in such a way as to allow a lowering/lifting of the blades that can be applied on them; —An operating device for controlling the sliding of said first and second blade-holder support, said operating device comprising a piston that alides in the grooving device and a pair of fixing pins, each one fixed on one part to a respective blade-holder support. In accordance with the invention, on the opposite part, said pins are maintained in contact in a sliding manner along a surface of the piston.

Abstract: A method for preparing a polymer insulated cable including a semiconductive layer surrounding a polymeric insulation layer includes: cutting the semiconductive layer by grinding a circumferential dividing groove in the semiconductive layer using a rotating grinding surface, wherein the dividing groove defines first and second semiconductive sections of the semiconductive layer on opposed sides of the dividing groove; and thereafter removing the second semiconductive section from the polymeric insulation layer while retaining the first semiconductive section on the polymeric insulation layer.

Abstract: A guide bar for a saw chain of a chain saw has a fastening section and a redirecting section. The guide bar has an imaginary longitudinal center axis extending from the fastening section to the redirecting section. The guide bar has at least one first marking in the form of a line. The first marking is inclined at an angle of about 20° to about 80° with respect to the longitudinal center axis when viewing the guide bar in side elevation. The first marking is used to estimate, during operation, the depth (t) of a groove produced by the saw chain in the workpiece in the case of a cut in which the longitudinal center axis of the guide bar is inclined at an angle of about 20° to about 80° to the surface of the workpiece.

Abstract: A die having large numbers of grooves for molding a material to a honeycomb structure, wherein a surface having the grooves has an outer periphery in a polygonal shape having 6 or more corners, and wherein the grooves are crossing the outer periphery at an angle of 30° or more.

Abstract: The present invention discloses a one-step groove forming device and method for oblique crossing of reducing pipe fittings. The forming device is composed of a plurality of clamping components (1) and at least one marking component (2), the clamping components (1) are movably connected and can be fixedly connected, and at least one clamp (3) is arranged on the clamping component (1); the marking component (2) comprises a probe (4) and a marking knife (5) fixed on the probe, one end of the probe (4) is provided with a pinhead (6), and the marking component (2) is used in concert with the plurality of clamping components (1). The forming device of the present invention can realize one-step groove forming for oblique crossing of pipe fittings with different diameters at any angle.

Abstract: A foam panel cutting machine for cutting foam panels used in insulated building panels. The foam panel cutting machine has a feeder system feeds the foam panel through the cutting blades. The cutting machine additionally includes a frame, a plurality of upper rollers and a plurality of lower rollers rotationally mounted to the frame. The foam panel cutting machine can be constructed so that it may be portable. One embodiment includes the upper rollers on an adjustable head that can adjust the gap distance between the upper and lower rollers so that foam panels of various thicknesses may be cut. The cutting blade may be a hot-knife wherein the blade is heated by passing an electrical current through it. The cutting blade may have a “L” or “J” shape to cut kerfs into the foam panel that receive metal studs to form an insulated building panel.

Abstract: A method for producing a cable-sealing member is disclosed. The method comprises forming a formed rubber including a first plane and a second plane that oppose in a thickness direction and a side plane that bridges a peripheral edge of the first plane and a peripheral edge of the second plane. The method further includes rotating the formed rubber with one axis in the thickness direction as a rotary axis while a holder is applied over the side plane of the formed rubber and, meanwhile, inserting a cutting blade from the first plane into the formed rubber to form a ring-form slit portion and stopping the cutting blade just in front of the second plane, leaving a slit-form ring unbored on one side.

Abstract: A substrate processing method includes following steps. Multiple sawing blades are applied to a substrate for forming multiple side-by-side grooves. Each groove includes a short edge, and opposite a first long edge and a second long edge. A milling blade is used for milling one of the grooves. During the milling process the milling blade starts at a feed point and moves along a first feed path head toward the short edge, away from the groove, and intersects with the first long edge of the groove. The milling blade then proceeds to a second feed path, followed by moving to the third feed path, and eventually stops at an end point. The third feed path leads the milling blade toward the groove, away from the short edge of the groove, and then intersects with a second long edge of the groove before it eventually stops at the end point.

Abstract: A groove-making tool consisting of a hardened grooving-wheel that can be substituted for the cutting-wheel on any hand-held pipe-cutting tool and can make at least ore circumferential groove in a pipe. A method of coupling the pipe to a variety of standard off-the-shelf components by placing at least one O-ring on the grooved pipe, which has thus become a universal fitting, and applying a visually identifiable adhesive and/or crimping with a crimp tool.

Abstract: A groove cutter for floor sheets capable of being operated without using a ruler and can cut a seam, which is created when sheets are laid sequentially on the surface of floor base with an adhesive agent, so that a groove formed along the seam can bridge over both adjacent sheets, comprising a front part, a middle part, a rear part, wherein the front part has a thin guide plate, which is to be inserted into the seam and guides the tool along the seam when pushing the tool forward, at the front end, and at least one blade to cut a concave groove at the seam part of the sheet, which is provided behind the guide plate so as to be detachable, and a stabilizing member provided at the rear part, which is to be inserted into the concave groove, to stabilize a direction of movement along the seam.

Abstract: Engraving an article of manufacture by receiving the article of manufacture contained in packaging having a removable portion which covers a targeted engraving area of the article contained therein, removing the removable portion of the packaging to expose the targeted engraving area of the article of manufacture for engraving the exposed targeted engraving area of the article of manufacture.

Abstract: A cutting device that facilitates a cutting operation of a glass substrate and reduces internal defects that can be caused by surface cracks. The cutting wheel includes a cutting blade formed along a circumference thereof with respect to a rotation axis, wherein first and second slopes of the cutting blade are formed in an asymmetrical shape about an edge of the cutting blade where the first and second slopes meet each other.

Abstract: A groove machining apparatus for an insulating spacer includes a cutting blade that is removably fixed to a rotation shaft rotatable around a horizontal axis and movable in a right-left direction and in an up-down direction and mounts for a cassette that are fixed in a loading/unloading position opposing an entrance through which the cassette can be loaded/unloaded and in a working position 180 degrees apart from the loading/unloading position and facing the cutting blade, respectively, on a rotary table. The apparatus includes positioning devices that are respectively located in the vicinity of the mounts to position and fix the cassette to the mounts, and a clamping device that corresponds to the cassette in the working position and presses opposing edges in a front-back direction of a plurality of insulating spacers aligned on the cassette.

Abstract: A device (1) for grooving cardboard cuttings (2, 3) that features a driven, horizontally supported transport drum (11) and spaced-apart endless belts (51) that revolve around rollers (54.1 to 54.8) and effectively convey the cardboard cuttings (2, 3) by pressing them against the drum shell. Groove cutting tools (72) are arranged between the belts (51) at a defined distance from the drum shell and make it possible to produce grooves with essentially triangular cross section in the cardboard cuttings (2). In order to adjust the aperture angle of the grooves independently of one another, the adjustment of the angle within the respective groove cutting tool (72) is realized by means of curved guides (77). The center of curvature (81) of the curved guide (77) lies in the region of the drum shell, as well as in the region of the blade tip (71a) of the knife (71), such that the aperture angle and the depth of the groove can be adjusted independently of one another.

Abstract: A method of forming a recess in a work, a work in which the recess is to be formed is a material that can be cut. A cutting tool for forming the recess is held by a moving apparatus at a prescribed angle relative to the work. The cutting tool is moved in a carving direction for carving the work at the prescribed angle, and a thin cutting fin is vertically formed. Then, the cutting tool is moved in the horizontal direction, and the cutting fin is cut and separated from the work. The fin-forming step and the cutting step are repeatedly performed in sequence, whereby a recess having a prescribed depth d and area is formed in the work.

Abstract: A grooving sled for use with a pre-formed groove blade and hot knife, for making grooves in expanded polystyrene foam boards or walls. The grooving sled includes a built-in straight edge guide, one of two cutting position margins, and a stabilizer plate that fits inside a freshly-cut groove to keep the grooving sled straight while operating along the cutting layout line established on the board or wall. The stabilizer plate aligns with the groove blade by use of an angular adjuster, and if necessary, an insert bar. The stabilizer plate can also be adjusted vertically.

Abstract: A plurality of cutting blades is linearly arranged on the right and left sides of a plate that is placed vertically. The cutting blades on one side are arranged so as to face downward, and the cutting blades on the other side are arranged so as to face upward. With a tool thus formed, a cutting operation is performed by making a circular motion in a plane in which the cutting blades are formed, and the cutting operation using the circular motion is repeated with the tool shifted by a predetermined pitch in a cutting direction. The tool is tilted in the cutting plane when subjected to high stress.

Abstract: A method of cutting a slot using an apparatus comprising a carriage that is movable along an axis, a cutting tool, and a depth controller. The cutting tool may be removably attached to the carriage. The depth controller may be used to select a cutting depth of the cutting tool with respect to a surface of a workpiece closest to a part.

Abstract: An apparatus (1) for grooving cardboard cuttings (2, 141) while the cuttings are transported past at least one groove cutting tool (72?, 72?, 72??). The tool or tools are situated on a guide element (78, 80, 130) that can be moved relative to the transport device during the operation of the grooving apparatus. During a grooving operation, the position of the groove cutting tool along the surface of the cutting and/or its distance from the transport device, can be varied such that completely new designs of mechanically grooved cardboard cuttings can be realized. According to the grooving method at least one groove cutting tool is moved transverse to the transport direction of the cardboard cuttings while the cardboard cuttings are transported past the groove cutting tools.

Abstract: The present invention provides a method and apparatus of reducing current requirements by increasing resistance of the blade structure by reducing the cross sectional area of at least one section of the blade so that the electrical current requirements for heating of the blade to cutting temperature are reduced wherein the power supply and substantially entire unit may be mounted within a hand held unit. Methods of shaping blades to perform various heat distributions for specialty blades for custom cutting are disclosed. Further, an improved blade mounting structure is provided which includes structure for maintaining the legs of the blade parallel to the direction of cut and provides for easy insertion of new blades by maintaining a slotted blade cradle stable and in alignment with the blades and a clamp member away from the blade when the clamp mounting structure is loosened.

Abstract: A variable wavelength interference filter includes a stationary substrate and a movable substrate opposed to each other, the stationary substrate includes a stationary reflecting film, a first drive electrode, and a first capacitance detecting electrode, and the movable substrate includes a movable reflecting film arranged to have an inter-reflecting film gap with the stationary substrate, a second drive electrode arranged to have an inter-drive electrode gap with the first drive electrode, and a second capacitance detecting electrode arranged to have an inter-capacitance detecting electrode gap with the first capacitance detecting electrode. The capacitance detecting electrodes detect the capacitance between the electrodes. The gap amount of the inter-reflecting film gap is changed by the drive electrodes. The gap amounts of the inter-reflecting film gap, the inter-drive electrode gap, and the inter-capacitance detecting electrode gap are different from each other.

Abstract: The apparatus (1) includes a horizontally supported transport drum (11), spaced-apart endless belts (51) that revolve around rollers (54.1 to 54.8) and are partially wrapped around the transport drum (11) such that an infeed (14) and an outlet (15) are formed and the cardboard cuttings (2, 3) are pressed against and conveyed on the drum. Groove cutting tools (72) are arranged between the belts (51). In order to allow a visual inspection of the cut grooves (3a) from above during the operation of the apparatus, the outlet (15) is situated in the region of the upper vertex of the transport drum (11). The delivery of the grooved cardboard cuttings (3) at the upper vertex of the transport drum (11) also results in an ergonomically advantageous removal height.

Abstract: An apparatus (1) for grooving cardboard cuttings (2, 3) features a transport drum (11), spaced-apart belts (51) that revolve around rollers (54.1 to 54.8) such that an infeed (14) and an outlet (15) are formed. Groove cutting tools 72 are arranged between the belts (51) at a defined distance from the drum surface. The belts (51) and/or the groove cutting tools (72, 72.1 to 72.6) are situated on a first or second carrier (31) that can be displaced back and forth between a working position and an idle position radially to the transport drum (11). Another embodiment features several third carriers (52.1 to 52.7) that can be separately displaced relative to one another and to the transport drum (11) and feature at least the rollers (54.1 54.8) intended for guiding and tensioning a preferably individual belt (51).

Abstract: A tool path generating device (20) which generates a tool path (L1) for machining a hairline-shaped long narrow groove (Wa) of on a workpiece surface (W0), includes a shape data acquisition part which acquires shape data of a workpiece, a parameter setting part (23) which sets a shape parameter of a hairline corresponding to the long narrow groove (Wa), and a path generating part (24) which generates a tool path (L1) for a hairline machining, based on the shape data acquired by the data acquisition part and the shape parameter set by the parameter setting part (23).

Abstract: A method for forming an indicia groove includes preparing an indicia die having a pressing face. A protruded indicia portion is formed on the pressing face and includes an upper face having a boundary. A protrusion is formed on the upper face and located in the boundary. A stepped portion is formed between the protrusion and the protruded indicia portion. The indicia die presses against a surface of a product, forming an indicia groove in the surface of the product. The indicia groove provides an indicating function for the product. The product with the indicia groove is obtained after removing the indicia die.

Abstract: Provided is a lens with a lens tube in which, in the lens with a lens tube which is constituted by a cylindrical lens tube and a lens that is held by the lens tube, the lens tube provides a lens holding portion which comes into contact with an outer circumference surface of the lens, the lens holding portion includes a first groove portion which is consecutively formed in a spiral, a second groove portion which is consecutively formed in a spiral, and an intermediate region which divides the first groove portion and the second groove portion, and the intermediate region is constituted by a protruding portion and a third groove portion.

Abstract: Processes of fabricating at least one graft contact surface and other surface topographies on an interbody spinal implant, such as a solid-body or composite implant. The graft contact surface as one or more of the internal surfaces of the implant includes at least one ridge or groove, for example, which is designed to contact and promote retention and stabilization of bone growth-inducing materials placed within the internal openings of the implant body. In addition, the ridges or grooves may influence the biological processes to promote bone healing and fusion.

Abstract: Optical films having anti-Moiré and anti-wetout features are described, along with systems and methods for making these optical films. A master used to make optical films is formed using a single axis actuator cutting along a trajectory that is out of plane with the surface of the master. Movement of the cutting tool along the trajectory cuts grooves having variable depth and variable pitch into the surface. Prisms formed from the master have variable depth, variable height prisms that provide anti-wetout and anti-Moiré features.

Abstract: A device for forming a groove in a cover, the device including a circular score anvil having a first axis and being rotatable in a first direction and a circular scoring knife having a second axis positioned parallel to the first axis and arranged radially opposite the circular score anvil to define a gap between the score anvil and the scoring knife. The scoring knife is rotatable in a second direction opposite to the first direction and comprises a scoring element having an edge region that is tapered to form a ridge toward a periphery of the element. The edge region includes an intermediate space that divides the edge region into two spaced apart knife edges. A groove is formed in the cover while moving through the gap by operative cooperation of the scoring knife and score anvil.

Abstract: The present invention is a flycutting mirror finishing method on a film-like workpiece, comprising: mounting a flycutting jig, on which a flycutting tool has been mounted, on a rotary spindle; and controlling a rotation of the rotary spindle and a position of the film-like workpiece relative to the rotary spindle; wherein, in order that the flycutting tool forms a mirror surface on a side edge surface of the film-like workpiece, the position of the film-like workpiece relative to the rotary spindle is moved in parallel with the mirror surface.

Abstract: Methods of fabricating coated components using multiple types of fillers are provided. One method comprises forming one or more grooves in an outer surface of a substrate. Each groove has a base and extends at least partially along the outer surface. A sacrificial filler is deposited within the groove, a second filler is deposited over the sacrificial filler, and a coating is disposed over at least a portion of the outer surface and over the second filler. The method further includes removing the sacrificial filler and at least partially removing the second filler from the groove(s), to define one or more channels for cooling the component.

Abstract: A cutting system includes a cutting assembly and an anvil. The cutting assembly includes an ultrasonic cutting tool having a stylus with a tip and an actuator to move the tip along a path. The path is oriented in a transverse manner relative to movement of a backed ply material. The anvil includes a rigid base for securing the anvil to the cutting assembly and a surface coinciding with the path. The system is configured to drive the tip into the surface and draw the tip along the path to generate a groove disposed upon the surface. The groove being in cooperative alignment with the tip.

Abstract: A trench scribing apparatus and a trench scribing method adapted to scribe a trench on a substrate are provided. The apparatus includes a platen, a guide rod structure, a supporting carrier and a pin device. The guide rod structure is disposed above the platen. The supporting carrier is fixed on the guide rod structure, and the substrate is disposed on the supporting carrier. The pin device is disposed above the supporting carrier and includes a pin holder and a plurality of pins fastened on the pin holder, and the pins are arranged into at least one straight line.

Abstract: A method of manufacturing a wall structure includes producing at least one elongated web in a workpiece by feeding a machining tool along the workpiece, wherein the machining tool simultaneously machines a first side surface of the web, a second side surface of the web and a top surface of the web.

Abstract: A method of removing a metal sleeve from a bore formed in one or more elements is disclosed. The sleeve may be a cold-expanded sleeve secured within the bore by means of an interference fit. The method includes removing material from the internal surface of the sleeve by means of cutting along a line to a depth less than the thickness of the sleeve, and subsequently urging the sleeve from the bore.

Abstract: A groove machining apparatus for an insulating spacer includes a cutting blade that is removably fixed to a rotation shaft rotatable around a horizontal axis and movable in a right-left direction and in an up-down direction and mounts for a cassette that are fixed in a loading /unloading position opposing an entrance through which the cassette can be loaded/unloaded and in a working position 180 degrees apart from the loading/unloading position and facing the cutting blade, respectively, on a rotary table. The apparatus includes positioning devices that are respectively located in the vicinity of the mounts to position and fix the cassette to the mounts, and a clamping device that corresponds to the cassette in the working position and presses opposing edges in a front-back direction of a plurality of insulating spacers aligned on the cassette.

Abstract: A method for preparing a polymer insulated cable including a semiconductive layer surrounding a polymeric insulation layer includes: cutting the semiconductive layer by grinding a circumferential dividing groove in the semiconductive layer using a rotating grinding surface, wherein the dividing groove defines first and second semiconductive sections of the semiconductive layer on opposed sides of the dividing groove; and thereafter removing the second semiconductive section from the polymeric insulation layer while retaining the first semiconductive section on the polymeric insulation layer.

Abstract: A manufacturing method of the present invention includes the steps of: preparing a pre-line forming member having no face line; and cutting the pre-line forming member using a cutter 12 to form the face line on the pre-line forming member. The cutter 8 has a tip part having a cutting surface. The cutting surface has a recessed curved surface c4. An edge of the face line 8 is cut by the recessed curved surface c4. Preferably, the step of cutting is carried out by axial rotation of the cutter 8. Preferably, the cutting surface has a plane part c5 formed on an upper side of the recessed curved surface c4. Preferably, the upper side plane part c5 is perpendicular to a rotation axis rz of the cutter 12. Preferably, the cutting surface has a conical surface Fc formed on a lower side of the recessed curved surface c4.

Abstract: A solution for texturing silicon wafers configured to constitute photovoltaic (PV) cells. Silicon wafers can be produced, the surface of which include uniformly engraved patterns having a depth of between 5 and 50 ?m.

Abstract: A method for forming a prearranged rupture portion for an air bag door including the steps of setting an instrument panel on a fixing jig, and, then measuring, prior to forming grooves that make a prearranged rupture portion, the position of the back surface of a substrate of the instrument panel by a measuring device.

Abstract: The present invention provides a polishing pad used for planarizing inter layer dielectrics and the like by CMP (chemical mechanical polishing) in the manufacturing process of a semiconductor device, a method of producing the polishing pad and a method of producing a semiconductor device by using the polishing pad. The present invention relates to a semiconductor wafer polishing pad having grooves in a polishing surface and formed from a foamed polyurethane, wherein a processed surface of the groove comprising a side surface and a bottom surface has a surface roughness Ra of not more than 10.

Abstract: Methods of manufacturing electrochromic windows are described. Insulated glass units (IGU's) are protected, e.g. during handling and shipping, by a protective bumper. The bumper can be custom made using IGU dimension data received from the IGU fabrication tool. The bumper may be made of environmentally friendly materials. Laser isolation configurations and related methods of patterning and/or configuring an electrochromic device on a substrate are described. Edge deletion is used to ensure a good seal between spacer and glass in an IGU and thus better protection of an electrochromic device sealed in the IGU. Configurations for protecting the electrochromic device edge in the primary seal and maximizing viewable area in an electrochromic pane of an IGU are also described.

Abstract: Grooved tiles, grooved tile assemblies, methods of manufacturing grooved tiles, and methods of forming grooved tile assemblies are disclosed. The tiles of the present invention include grooves or recesses in the top surface that form one or more complete patterns and/or partial patterns, and that may intersect with one or more edges of the tile. The grooves of one tile can advantageously mate with the grooves of other identical or different grooved tiles when the intersection locations of adjacent tiles are aligned. In addition, the grooved tiles can provide the appearance of including numerous smaller individual tiles, thus eliminating the need for separately placing spacers between the tiles or first backing the tiles with mesh, netting, or paper backing prior to or during installation.

Abstract: Disclosed herein is a groove processing apparatus of processing a groove having a triangular cross section in a side of a plate material, the groove processing apparatus including: a cutting member cutting the side of the plate material; a first driving part moving the cutting member to first and second positions; and a second driving part moving the cutting member in groove processing directions of the plate material, wherein the first position corresponds to any one of the two sides of the triangular shape having the same vertex and the second position corresponds to the other thereof, the vertex being positioned inside the plate material.

Abstract: Methods of forming one or more grooves in a component are provided. One method includes using a first machining technique to form one or more preliminary grooves in an outer surface of a substrate. Each preliminary groove has a base and extends at least partially along the outer surface of the substrate, and the substrate has an inner surface that defines at least one hollow, interior space. The method further includes using a second machining technique to further machine the preliminary groove(s) to form the respective groove(s). In addition, the method includes forming one or more access holes through the base of a respective groove to connect the respective groove in fluid communication with the respective hollow interior space. Components with grooves characterized by a sidewall radius R in a range of 0?R?0.127 mm are also provided.