摘要:
An iron-based sintered alloy, which has a composition including, in terms of percent by mass, Ti: 18.4 to 24.6%, Mo: 2.8 to 6.6%, C: 4.7 to 7.0%, Cr: 7.5 to 10.0%, Ni: 4.5 to 6.5%, Co: 1.5 to 4.5%, Al: 0.6 to 1.0%, the balance being Fe and unavoidable impurities, wherein the alloy has a structure in which hard particles are dispersed in an island form in a matrix, among other characteristics.
摘要:
The invention relates to a method for operating a punching/transferring device (1), in particular for producing RFID in antennas. The punching/transfer device (1) has a punching tool (2) with a vacuum connection (3), said vacuum connection (3) interacting with a porous elastomer (9) such that by means of the punching tool (2), a desired contour can be punched out of a multilayer composite, held, and then dispensed by modifying the shape of the porous elastomer (9) and/or by modifying the vacuum.
摘要:
A steel plate for band-shaped die-cutting blades has a base part to a depth of more than 200 μm from the steel plate surface and a chemical composition containing 0.40 to 0.80 mass % C and 0.10 to 0.50 mass % Nb. A spherical carbide constituted of cementite is present in the bainite or tempered martensite structure of the blade in an amount of 1.0 vol % or more. A Nb-containing carbide having an equivalent-circle diameter of 0.5 μm or more is present at an existential density of 10.0 or more grains per 900 μm2. The base part has a controlled hardness of from 300 to 450 HV. The surface layer part has a decarburized surface layer of ferrite single-phase and a thickness of 5 μm or more. In a 15-μm-thick surface layer region, the existential density of the Nb-containing carbide is from 0 to 5.0 grains per 900 μm2.
摘要:
Tools with a thermo-mechanically modified working region and methods of forming such tools. The tool includes a working region containing steel altered by a thermo-mechanical process to contain modified carbide and/or alloy bands. In use, a surface of the working region contacts a workpiece when the tool is used to perform a metal-forming operation.
摘要:
Disclosed is a flex die punching apparatus for forming an aperture in at least one sheet of material. There is a flexible, extrudable platen which, upon exertion of a force against it, extrudes at least a portion of at least one sheet of material through an aperture of a die. The flexible, extrudable platen may have a punch feature, corresponding to the shape and position of the die aperture, which assists in the extruding of the flexible, extrudable platen through the die aperture and also in the formation of the aperture in the sheet of material. In another embodiment of the invention, there may be a second die wherein the at least one sheet of material is placed between the first and second dies to form the aperture in the sheet of material.
摘要:
A method of forming a rotary cutting die includes the following steps. A curved cutting rule transfer plate including an inner surface and an outer surface is provided. A cutting rule channel is formed in the transfer plate, and defines a predetermined design. A cutting rule having a cutting edge and a support edge is placed in the cutting rule channel. The support edge of the cutting rule extends from the inner surface of the transfer plate. A translucent rotary die place is formed on the inner surface of the transfer plate. The support edge of the cutting rule extends into and is supported in the rotary die plate. The transfer plate is then removed from the rotary die plate.
摘要:
A punch knife is formed by a steel band which is provided with a hardened cutting edge and at least one array of perforations and/or a tempered or porous strip of material extending in parallel with the cutting edge.
摘要:
In an apparatus for blanking out a sheet material (1) between a punch (4) and a die (6) having a sharp edge (7), the punch (4) is formed by a heterogeneous composite elastic material having localized regions (4a) having a relatively higher hardness, and complementary regions (4b) having a relatively lower hardness.
摘要:
The invention relates to a method for operating a punching/transferring device (1), in particular for producing RFID antennas. The punching/transfer device (1) has a punching tool (2) with a vacuum connection (3), said vacuum connection (3) interacting with a porous elastomer (9) such that by means of the punching tool (2), a desired contour can be punched out of a multilayer composite, held, and then dispensed by modifying the shape of the porous elastomer (9) and/or by modifying the vacuum.
摘要:
The invention relates to a method for manufacturing parts of acetate eyeglass frames from an acetate plate. The plate is designed with length and height dimensions defining a surface area that encompasses the perimeter boundary of the body of the frame part to be manufactured, and with a thickness the value of which is at least equal to the maximum transverse dimensions of the three-dimensional shape of the body of the frame part itself and extends evenly over the entire surface defined by the length and the height of the plate. The method also comprises the step of forming a cut within the surface dimensions of the plate along the perimeter boundary of the body of the eyeglass part to be manufactured, excepting a pair of portions of said boundary, thereby leaving said portions connected to the plate, and the step of forming the three-dimensional shape of the frame part body by removing material from the thickness of the plate. The same method also comprises the step of forming the lens seats, the grooves for receiving lenses within their seats, a nose bridge, bridge arms, and the endpieces for connection to the temples. The invention further relates to an apparatus for carrying out the process and an eyeglass frame so manufactured.