111 results about "Corner radius" patented technology

A thin walled, plastic hot-fill container has a finish to receive a closure, a neck supporting the finish, a shoulder situated below the neck, a base, and a body between the shoulder and base. The body includes upper and lower margins defining a label mount area that includes a plurality of inwardly recessed vacuum panels separated by vertical posts. At least one indented reinforcing ring separates the upper and lower edges of the vacuum panels from the adjacent margins of the label mount area by a distance D. Each vacuum panel includes an inclined upper and lower margin of height H that is greater than distance D, and has corners defined by radius R, which is less than or equal to D. Lateral margins of each vacuum panel extend vertically between the corners and connect the adjacent posts to a central depressed region, each lateral margin being essentially perpendicular to the adjacent surface of the vacuum panel.

An indexable cutting insert (10) having a top surface (12) including a substantially planar central portion (48), a substantially planar bottom surface (14), and a plurality of side surfaces (16, 18, 20, 22). A long cutting edge (24, 26), a corner radius cutting edge (28, 30), a facet radius cutting edge (32, 34), and ramping cutting edge (36, 38) are defined at an intersection between the top surface (12) and one of the side surfaces (16, 18, 20, 22). A margin (87, 89) extends around a nose radius of the cutting insert (10) and blends into a flat surface (94, 96). A margin angle, C, formed by the margins (87, 89) is less than a seating angle, B, formed by the flat surfaces (94, 96). The top surface (12) includes a plurality of upward sloping radius blends (50, 52, 54, 56, 58, 60, 62, 64) extending between the substantially planar central portion (48) and a plurality of upward sloping rake faces (70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92) extending between a respective radius blend and its respective cutting edge such that the rake face forms an angle, A, of between five and twenty-five degrees with respect to the central portion (48) of the top surface (12).

A thin walled, plastic hot-fill container has a finish to receive a closure, a neck supporting the finish, a shoulder situated below the neck, a base, and a body between the shoulder and base. The body includes upper and lower margins defining a label mount area that includes a plurality of inwardly recessed vacuum panels separated by vertical posts. At least one indented reinforcing ring separates the upper and lower edges of the vacuum panels from the adjacent margins of the label mount area by a distance D. Each vacuum panel includes an inclined upper and lower margin of height H that is greater than distance D, and has corners defined by radius R, which is less than or equal to D. Lateral margins of each vacuum panel extend vertically between the corners and connect the adjacent posts to a central depressed region, each lateral margin being essentially perpendicular to the adjacent surface of the vacuum panel.

An indexable cutting insert (10) having a top surface (12) including a substantially planar central portion (48), a substantially planar bottom surface (14), and a plurality of side surfaces (16, 18, 20, 22). A long cutting edge (24, 26), a corner radius cutting edge (28, 30), a facet radius cutting edge (32, 34), and ramping cutting edge (36, 38) are defined at an intersection between the top surface (12) and one of the side surfaces (16, 18, 20, 22). A margin (87, 89) extends around a nose radius of the cutting insert (10) and blends into a flat surface (94, 96). A margin angle, C, formed by the margins (87, 89) is less than a seating angle, B, formed by the flat surfaces (94, 96). The top surface (12) includes a plurality of upward sloping radius blends (50, 52, 54, 56, 58, 60, 62, 64) extending between the substantially planar central portion (48) and a plurality of upward sloping rake faces (70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92) extending between a respective radius blend and its respective cutting edge such that the rake face forms an angle, A, of between five and twenty-five degrees with respect to the central portion (48) of the top surface (12).

Transportation tooling of the type that borders the blade at its root and at an intermediate point. This tooling is used in combination with platforms placed on the transportation elements and said platforms can move transversely and turn or rotate with respect to the means of transportation without affecting blade integrity. A method for blade transportation with the point of one blade facing the point of the adjacent blade so as to use the minimum space on the means of transportation. The rail tooling takes into account the maximum corner radius that the train will encounter while absorbing the bending and torsion stress acting on the blades.

An indexable cutting insert having a body with a central axis extending therethrough and including two opposing surfaces interconnected by at least three sides. First and second sides intersect with one of the opposing surfaces at a primary corner to form a primary cutting edge having a corner radius. First and third sides intersect at a secondary corner. An intersection between an intermediate portion of the first side and the opposing surface forms a secondary cutting edge having an arcuate shape with a radius extending away from the central axis beyond a line between the primary corner and the secondary corner. An end of the secondary cutting edge is spaced from the end of the corner radius on the first side at a distance at least approximately one-eighth of a length of the line between the end of the corner radius on the first side and the secondary corner.

A transportation tooling of the type that borders the blade at its root and at an intermediate point. This tooling is used in combination with platforms placed on the transportation elements and the platforms can move transversely and turn or rotate with respect to the devices of transportation without affecting blade integrity. Also a method for blade transportation with the tip of one blade facing the tip of the adjacent blade so as to use the minimum space on the devices of transportation. The rail tooling takes into account the maximum corner radius that the train will encounter while absorbing the bending and torsion stress acting on the blades.

A center or non-center cutting end mill for orbital drilling includes a shank having a shank diameter; a neck having a neck diameter; a cutting head having a cutting diameter; a corner radius; a dish angle; and a longitudinal axis, the cutting head including a forward cutting end having a convexly curved section located between the longitudinal axis and the corner radius, wherein the convexly curved section causes material removed from a workpiece to flow radially outward from an initial contact area toward the corner radius, thereby minimizing the accumulation of material in a central portion of the forward cutting end.

A numerical control machining method for a panel part with a complex structure of an aircraft. One side of the part is a multi-slot cavity surface and the other side is an outer profile surface. First, a tool is selected according to the corner radius of the groove cavity, and a trial tool convex is processed in the process frame area of ​​the wool end. Then, a sufficient number of stress grooves are machined on the process frame outside the part outline, and a sufficient number of supporting process bosses are reserved on the upper surface of the part. When processing the theoretical shape surface, the part and the wool frame are turned over and clamped together. Ensure the thickness of the web of the part, keep a sufficient number of connection points between the part and the process frame when machining the outer contour of the part, and finally remove all supporting process bosses and connection points to separate the part from the process frame.

A contour end mill includes a shank portion and a cutting portion. The cutting portion defines a cutting diameter, a corner radius and a major radius. The major radius is greater than one-half of the cutting diameter. As a result, the end mill produces a much smoother finish and a reduced chip thickness.

A milling insert for shoulder milling having s a positive basic shape and includes an upper side having a rake surface, a lower side including a planar bottom surface, a side surface extending around the periphery of the milling insert, and a cutting edge formed between the side surface and the rake surface. The cutting edge has at least a major cutting edge portion, a corner radius cutting edge portion, a ramping cutting edge portion, and a surface wiping cutting edge portion. The side surface includes an upper set of primary clearance surfaces and a lower set of secondary clearance surfaces having a plurality of planar secondary clearance surfaces, wherein the upper set of primary clearance surfaces forms an overhang protruding with respect to the secondary clearance surfaces and extending around the entire upper periphery of the milling insert.

Stator and base plate interface alignment is provided for a spindle motor, meeting design specifications such that motor performance is maintained. A portion of a surface of the stator is separated from the base plate. Accurate stator z-height, parallelism and concentricity are provided for use with a low profile disc drive memory system. In an aspect, laminations are formed about a stator and the bottom layer laminations are formed with a smaller diameter than the top layer laminations. The stator bottom layer laminations seat on a flat base plate machined surface, avoiding a base plate corner radius. Precise machining of a small corner interface of the base plate where a stator is typically seated and aligned with the base plate is made unnecessary. Component machining costs, wear and tear to machining systems, and machining process cycle times are reduced.

A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion, and a cutting tip. The cutting portion includes a plurality of blades and a plurality of flutes. Each blade includes a leading face, a trailing face, and a land surface extending between the leading face and the trailing face. The cutting tip includes a corner radius, a first portion formed with a first dish angle, and second portion formed with a second dish angle and a third portion formed with a third dish angle. The trailing face contacts the work during a ramp operation in such a way that the first, second and third portions have a double positive geometry to provide the cutting tool with high ramp angle capability.

A method and apparatus for forming a bend in composite panel. In one advantageous embodiment, a method is used to form a bend in a composite panel. An angle and a radius bend are identified for the bend. A location of the bend in the composite panel is identified. A slot is cut having a curved flange in the composite panel at the identified location in a single pass through the composite panel with a tool, wherein the curved flange has a shape with a bend allowance width and a bend slot width. The bend allowance width is BA=2π*A / 360, wherein BA is the bend allowance width, R is a corner radius, and A is a bend angle. The bend slot width is BS=BA−2K(R−T), wherein K is Tan(A / 2) and T is a thickness of the composite panel. The composite panel with the slot is bent to form the bend.

An anti-collision component consisting of a metal hollow profile for automobiles includes a collision side flange, a body side flange, and a web connected to the flanges. The hollow profile has a longitudinal end at which a cross-sectional configuration is deformed by swaging to reduce a dimension between the flanges. The following relations are established:tW>TW RCI≧(tW-TW)where tW is a wall thickness of the web at the end, TW is a wall thickness of the web at a portion where the cross-sectional configuration is not deformed, and RCI is an inside corner radius of a corner formed of the web and each flange at the portion.

The invention discloses a deep drawing die of a non-flanged edge concave die. The corner radius of a concave die in a drawing die is equal to the radial length from the edge to a die cavity of the concave die and transit along the circumference; the lower end of an upper die plate is provided with a convex die which is arranged on a convex die fixing plate and in a pressing-material ring hole; the convex die fixing plate is in threaded connection with the upper die plate; the upper die plate is provided with more than three through holes provided with steps, in which rejected material bolts are inserted; the rejected material bolts, which are extended out of the lower end surface of the upper die plate, are orderly arranged in a spring; the end parts of the rejected material bolts are in threaded connection with a pressing-material ring; the non-flanged edge concave die is arranged on the center part of the upper end surface of the lower die plate; the center part of the non-flanged edge concave die is provided with a concave die cushion; and a head part spring is pressed against the lower end surface of the concave die cushion. The die can improve the forming performance of sheet materials, compared with the conical surface concave die, the conical surface rigid clamping ring die and the drawing die of which the upper surface of the concave die is closely punched with technological blind holes, the die has the advantages of improving the deepest drawing depth of a drawing piece without cracking, replacing multiple drawing by one-time drawing, and reducing cost and energy consumption.

An indexable cutting insert includes a top surface, a bottom surface and a plurality of side surfaces. Each side surface includes a first pair of chip grooves, and a second pair of chip grooves. A planar corner surface is disposed between each side surface. A corner radius extends between the top and bottom surfaces and the planar corner surface. A plurality of primary wiper cutting edges are formed at an intersection between each of the first pair of chip grooves and the the top and bottom surfaces. A plurality of secondary roughing cutting edges are formed at an intersection between each corner radius and each of the first pair of chip forming grooves. A plurality of wiper cutting edges are formed at an intersection between each planar corner surface and each of the second pair of chip forming grooves. A milling cutter is also disclosed.

A cable routing system formed from a tray with a plurality of transverse wires and a plurality of longitudinal wires. The transverse wires form a generally flat top portion with downwardly extending sidewalls. The longitudinal wires are positioned underneath the top portion, side longitudinal wires are positioned adjacent the downwardly extending sidewalls and bottom longitudinal wires are positioned at an end of each of the downwardly extending sidewalls. The transverse wires and the longitudinal wires form a grid with a plurality of openings for routing a plurality of cables. The cable routing system also includes a sidewall removablely secured to the tray to retain cables routed thereon and a corner radius device removablely secured to the tray to provide bend radius control to cables routed along intersecting cable trays.

The invention relates to a thermal shaping method and device of a high-strength sharp-corner square rectangular tube. The method comprises the following steps: pre-bending a high-strength steel plate into a pre-shaped square rectangular tube whose corner radius R is 4-10mm by using a cold bending shaping method, sending the pre-shaped square rectangular tube into an induction heating coil and locally heating the four bend-corner parts of the pre-shaped square rectangular tube at the heating temperature of 500-1050 DEG C; after heating, sending the pre-shaped square rectangular tube into a first pass roller pass, extruding out a sharp-corner square rectangular tube; sending the sharp-corner square rectangular tube into a second shaping pass to perform the second thermal shaping and eliminate redundant deformation. The square rectangular tube with the inner sharp corners or outer sharp corners can be prepared, the residual stress on the corners is reduced, the elongation rate is increased, and cracking phenomenon caused by processing hardening is avoided.

The present invention provides railway which two steel rail sides are paved road surface, ate the same time and the train vehicle running on the railway which is equipped with steel wheel and rubber driving wheel. The steel wheel runs on the steel rail and the rubber driving wheel runs on the two road surfaces of steel rail two sides. The vehicle is guided by the steel wheel and driven by the rubber driving wheel, the both carry the vehicle weight and runs on railway. Due to using rubber wheel driving, the strong driving friction between rubber driving wheel and road surface is far larger than the driving friction (adhesion force) between the wheels and the rail of prior high speed train, so the train speed is far higher than the prior various high speed trains. The train can obtain out side superelevation on curve road through adjusting the pressure adjusting (lifting) device on the rubber driving wheel and the steel wheel of train two sides. The advantages of the invention are: the train has excellent starting, accelerating, climbing and braking performance, the carve road radius is small; the noise pollution between wheel and rail is reduced substantially. And it can decrease corner radius and the road cost.

An improved socket having a drive end opening being so dimensioned for receiving a drive anvil, the opening comprising a plurality of bounding surfaces parallel to a central axis and being disposed in diametrically opposed pairs about the axis, where the diametrically opposed pairs of bounding surfaces include: at least two pairs of flat side surfaces being parallel to each other about the central axis; at least two pairs of curved recess surfaces forming respective inner corners of the drive end opening; and adjacent pairs of outwardly diverging transition surfaces transitioning between respectively adjacent pairs of the flat side surfaces and the curved recess surfaces. The improved socket increases corner radius for minimizing stress concentration at the corners and provides outwardly diverging transition surfaces for relocating the areas of maximum stress away from the corners.

The invention provides a radial superconducting uniform field coil with a round corner and a design method thereof. The superconducting uniform field coil is formed by a saddle-shaped coil in a basicshape with round corner connection; and a position between an axial line section and a circular arc line section of the saddle type coil is smoothly bent and folded into round corner connection. The design method of the radial superconducting uniform field coil comprises the following steps of 1, determining the design requirements of the uniform field coil, and using the requirements as initial parameters of the uniform field coil to be input; 2, setting a target magnetic field; restraining the dimension range of the saddle-shaped coil; using the coil area as the minimum optimization objective; introducing constraint conditions; and building a nonlinear optimization model; 3, specifying the saddle-shaped coil current density, the harmonic component order and the round corner radius for optimization solution, and obtaining the coil position coordinate and circular arc span; and 4, judging whether the coil parameter obtained through nonlinear planning meets the design requirements or not; if so, outputting the parameter of the superconducting coil meeting the design requirements; and if not, executing the step 3 again.

Stator and base plate interface alignment is provided for a spindle motor, meeting design specifications such that motor performance is maintained. A portion of a surface of the stator is separated from the base plate. Accurate stator z-height, parallelism and concentricity are provided for use with a low profile disc drive memory system. In an aspect, laminations are formed about a stator and the bottom layer laminations are formed with a smaller diameter than the top layer lamination. The stator bottom layer laminations seat on a flat base plate machined surface, avoiding a base plate corner radius. Precise machining of a small corner interface of the base plate where a stator is typically seated and aligned with the base plate is made unnecessary. Component machining costs, wear and tear to machining systems, and machining process cycle times are reduced.

The invention discloses a fixed-point rotary cutting method for off-axis microlens machining, and relates to a fixed-point rotary cutting method. The problem that the machining precision of a microlens is reduced due to the high-frequency motion which adversely affects the motion stability of a machine tool when the corner radius is compensated in the prior art, and the problem that planning of acutting track is difficult are solved. The method comprises the first step of adjusting the distance between the rotation center axis of a workpiece and the spindle axis of an ultra-precision machinetool to be controlled within 0.5 micrometer, the second step of controlling the radial distance between a tool tip of a tool and the rotation center axis of the workpiece to be within 0.5 micrometer by adopting a trial cutting method, the third step of moving the tool tip to the central axis position of a certain microlens unit of a microlens part to be machined through machine tool linkage, the fourth step of planning an actual cutting track, the fifth step of achieving cutting machining of one single microlens unit through machine tool linkage and the sixth step of repeatedly performing thethird, fourth and fifth steps till all the microlesn units on the surface are machined. The fixed-point rotary cutting method is used for off-axis microlens machining.

The invention discloses a method for processing a square groove or special-shaped groove in a printed circuit board with the corner radius being less than 0.30 mm. The method comprises the following steps: firstly drilling a first pre-drilled hole with a drill bit in a corner, wherein the first pre-drilled hole is tangent on the both sides of the corner; then drilling one or a plurality of secondpre-drilled holes in the both sides of the first pre-drilled hole, the first pre-drilled hole is tangent to the second pre-drilled holes, and the second pre-drilled holes is tangent to the edge of thecorner; secondly, drilling a plurality of pre-drilled holes between the first pre-drilled hole and the second pre-drilled holes to form a pre-drilled groove, and finally, changing to a milling method, and milling the contour of the square groove or special-shaped groove and other areas in the contour by a milling cutter. The method not only does not need to increase a punching process, reduces the production cost, and can avoid the occurrence of defects such as non-straight edge, layering, ink falling off, cracks and the like, and the quality of the printed circuit board is ensured.

A radius of a corner is determined by using a corner radius calculating device based on road data and data related to position of a vehicle on the road. An actual turning radius when the vehicle enters the corner is estimated by an actual turning radius calculating device based on at least a vehicle speed and motion parameters of the vehicle, and the motion state of the vehicle is controlled by the motion state control device so that an actual turning radius of the vehicle becomes close to the radius of the corner based on a calculation by radius difference calculating device for calculating a difference between the calculated corner radius and the actual turning radius. Thus, a motion state of the vehicle at a time of traveling around the corner is properly controlled to enable the vehicle to pass the corner reliably.

The invention relates to a preparation method of a super-hydrophobic bionic numerical control machining tool. The preparation method is characterized in that two-section type microstructures formed bymicro-protrusions and micro-grooves are arranged on the front tool surface and the rear tool surface of the tool, a sawtooth-shaped nanostructure is arranged at the position of the corner radius, hard particles are subjected to hypersonic flame spraying, and solid lubricant coatings are coated with the hard particles; the two-section type microstructures formed by the micro-protrusions and the micro-grooves are prepared on the front tool surface and the rear tool surface of the tool through the nanosecond laser machining technology, the contact area between the tool and cuttings is reduced, friction between the tool and the cuttings is relieved, and the hard abrasive particles are stored; meanwhile, in order to enable a tool nose to cut in a workpiece more gently without resistance, the sawtooth-shaped nanostructure with the intervals about 300-400 nm and the depths about 100-150 nm is machined at the position of the corner radius through the femtosecond laser machining technology; and then solid lubricant powder is coated with the hard particles through the hypersonic flame spraying technology, suspension liquid is prepared, the microstructure surface of the tool is coated with the suspension liquid, and the dual effects of superhydrophobicity and friction reduction are achieved.

A drill string includes a plurality of tubular members each having a connection with a pin connector and a box connector on adjacent tubular members. The pin connector has an external thread with negative load flanks and positive stab flanks, adapted for threadingly engaging an internal thread second threads with negative load flanks and positive stab flanks on the box connector of the adjacent tubular member. The positive stab flanks have corner radiuses and the negative load flanks have radiuses forming a S-shape. The pin connector has an outer groove for receiving a protuberance on the terminal end of the box member forming locking shoulders. The protuberance and groove have contoured surfaces providing large metal-to-metal contact for preventing the contoured surfaces from sliding during over-torquing and cyclic bending of the drill string. The negative load flanks and locking shoulders lock the connection together. The negative load flanks absorbing the tension and the locking shoulders absorbing the compression on the connection.

The invention relates to the technical field of aircraft composite material interlayer tensile stress design, and provides a method for determining an allowable value of an interlayer tensile stress design of an airplane composite material, which comprises: 1, determining influence parameters including a B reference value coefficient, an environment, a laying proportion, a thickness, a corner radius joint thickness, a damage and a thermal cycle influence coefficient; 2, determining an interlayer tensile stress design allowable value calculation formula based on the B reference value; 3, determining a test matrix; 4, determining a test environment standard, an environmental influence test moisture absorption saturation determination standard, a thermal cycle influence test cycle index and temperature spectrum, and a test piece damage determination standard; 5, performing a test by referring to an ASTM D6415 test standard to obtain an interlayer tensile stress average value and a B reference value initial value; 6, calculating a B reference value and each influence parameter; and 7, calculating an interlayer tensile stress design allowable value. The method is high in accuracy, highin universality, low in test cost and high in test efficiency.