2528 results about "Stamping process" patented technology

The stamping process and a method of fabrication of nano-stamps with characteristic dimensions below 1 nm and up to 100 nm intended for usage in making patterns of characteristic dimensions the same as those of the nano-stamp on surface of a substrate is provided. In the process a very hard stamp is fabricated by first depositing alternating layers of two materials, one of which has very high hardness, on some sacrificial substrate via PVD, CVD or any other deposition procedure that produces alternating layers of selected thickness, from sub 1 nm to above 100 nm. The layered film is then polished to an atomically smooth finish perpendicular to the plane of the layers and etched to produce dips in the softer layers. These steps produce a grid of parallel elevations and valleys on the etched surface, which now can be used as a stamp to stamp out patterns on a substrate of lower hardness than the hardness of the elevated layers. If the substrate is stamped twice with a turning of the stamp 90 degrees between first and second stampings, a square pattern of elevations or hills and valleys is formed, which can be used for magnetic memory storage by subsequently sputtering magnetic material on the tops of the elevations or hills.

A method of performing thermal imprint lithography of a surface of a thermoplastic layer-coated workpiece for forming a pattern therein comprises pre-heating the workpiece to a pre-selected high temperature prior to inserting the workpiece in a stamping/imprinting tool maintained at a predetermined lower temperature, whereby the interval for thermal cycling of the stamping/imprinting tool between higher and lower temperatures is eliminated or at least reduced. Applications of the method include forming servo patterns in disk-shaped substrates for hard disk recording media.

A method and apparatus for inspecting an object after stamping is described. The method and apparatus comprises determining a temperature distribution of an object after stamping; obtaining one or more thermal images of the object after stamping; and comparing the determined temperature distribution with the obtained thermal images so as to identify defects existing in the object after stamping, in which the difference between the temperature distribution and the thermal images indicates the presence of defects in the object. The method and apparatus can therefore inspect and analysis problems of the object occurred during the stamping process.

The invention provides a new process of quick superplastic forming of automotive body parts of aluminum alloy automobiles, which is mainly characterized in that hot stamping is combined with superplastic gas-bulging forming, so that the advantages of the hot stamping and the superplastic gas-bulging forming are relatively complemented to achieve the aim of quick superplastic forming. The process reduces the requirements of the conventional superplastic forming on grain sizes of sheet materials, and allows for the use of ordinary commercial aluminum alloy sheet materials. Compared with a cold stamping process, the new process has the advantages of overcoming the drawbacks of cracks and large springback, along with fewer working procedures and high yield; and compared with the conventional superplastic forming process, the new process improves the forming speed obviously, and reduces the material cost. The new process eliminates the technical barriers in making light weight automobile bodies of the low and medium-grade automobiles by using aluminum alloy, and is an efficient and high-quality process for the mass production of the automobile bodies of the aluminum alloy automobiles.

The invention relates to an ultrahigh-strength steel laser tailor welded blank and a forming process thereof. The forming process provided by the invention comprises the following steps: carrying out the laser tailor welding on ultrahigh-strength steel and high-strength steel according to the needed shape; then, delivering the obtained welded blank to a furnace filled with a protective gas and heating to 920-940 DEG C to be continued for at least 5 minutes; fully austenitizing; transferring the austenitized welded blank to a press machine to be rapidly molded and formed; cooling to 100-150 DEG C through pressurization quenching; and cooling along room temperature to obtain the needed parts. The hot stamping process of the laser tailor welded blank provided by the invention has the double advantages of the forming and hot stamping forming of the laser tailor welded blank and simultaneously solves the problems that the ultrahigh-strength steel is difficultly applied to the production ofautomobile structural components/framework components in a laser tailor welded blank mode.

A method comprising the use of additive manufacturing techniques for creating molds and pattern parts for subsequent use in the casting of die components and die shoes for use in die stamping processes.

The invention relates to a filter medium, in particular to a filter medium and a preparation method thereof. The preparation method is as follows: raw materials are taken according to the weight percent of a formula, are added with materials to be mixed and stirred evenly according to the prescribed steps, and then are formed by extrusion and punch in a prefabricated mold, and the forming body is dried and cured at certain temperature to form the filter medium. Absorbing raw materials such as activated carbon, kaolin, diatomaceous earth and the like, and a water based binder such as polyvinyl alcohol, sodium carboxymethyl cellulose, modified starch and the like adopted by the invention are of nontoxic and non-harmful raw materials, and are formed by extrusion and punch under the condition of normal temperature, and in the process of high-temperature curing, water can remove the blockage of the binder for micropores of the absorbing raw materials in the process of extrusion or punch when evaporating, so that the finished product keeps the original absorption characteristics of the absorbing raw materials and simultaneously overcomes the defects that medium raw materials are precipitated when the filter medium is used for filtering.

The invention discloses a sedan tubular V-shaped torsion beam stamping process, which includes blanking, inner V shape forming, primary formed outer V shape port expansion, secondary port expansion and cutting, consequently, the original process of primarily stamping an inner V-shaped surface and an outer V-shaped surface and secondarily expanding the shape of the port is changed into primary inner V-shaped surface stamping, the port is then primarily expanded as the outer V-shaped surface is stamped, and the process of secondarily expanding the port is carried out. Not only is the production of a bump at the intersection between the port expansion and the middle V shape effectively prevented, but also the port is prevented from being cracked due to expansion, so that the rigidity and strength of a product are ensured; moreover, the process is simple, the number of the steps of the process are little, and the production cost is effectively controlled.

A flexible electret transducer assembly including an electrical backplate and a membrane made of an electret material is disclosed. A plurality of spacers is formed on a surface of the electrical backplate in a longitudinal or latitudinal direction, and the spacers are used for supporting a vibrating room of the membrane. A working area of the membrane is formed between adjacent spacers, and in each of the working area, the space between the electrical backplate and the membrane is smaller than that in a conventional electrostatic speaker. The spacers between the electrical backplate and the membrane are mass produced through a stamping process. Thereby, an accurate space between the electrical backplate and the membrane can be maintained and accordingly the audio quality can be improved. In addition, a speaker including the flexible electret transducer assembly and a method for fabricating the flexible electret transducer assembly are also disclosed.

A process for continuous, tailored lamination of aligned composite materials in such a way that either pre-formed or pre-consolidated sheets are made available for subsequent infusion molding or stamping processes, the process comprising the steps of: material placement, consolidation/stabilization, cut and kit, fabrication, and final trim. A tailored blank machine is also described. The blank machine includes a series of material placement heads arranged in a linear or serial fashion along a single moving placement table, wherein each head lays down a single angle of the prescribed stacking sequence as the conveyer passes under the head at a constant speed wherein the angle is proportional to head traverse rate divided by conveyer speed.

The invention discloses a high strength steel plate hot stamping die for automobile parts. The high strength steel plate hot stamping die for the automobile parts mainly consists of a male die body (a male die and a male die connecting fixing plate), a female die body (a female die and a female die connecting fixing plate), blank holders, cooling pipelines, connecting devices, positioning devices, U-shaped connecting hoses and pipe joints. The male die, the male die connecting fixing plate, the female die, the female die connecting fixing plate and the blank holders are respectively manufactured, and grooves used for fixing the cooling pipes are respectively processed. The cooling pipelines are manufactured into shape-following cooling pipelines which are consistent with the shape trends of the parts by adopting copper pipes, are respectively arranged in the grooves respectively arranged in the male die body, the female die body and the blank holders, and are externally connected with a master cooling pipeline through the U-shaped connecting hoses and the pipe joints to form a cooling closed loop. The hot stamping die disclosed by the invention is simple and compact in structure and convenient in maintenance, is reliable and practical, can be used for evenly and rapidly cooling the parts during a stamping process and is in favor of enhancing the working stability per se and prolonging the service life per se.

An improved method for manufacturing tube and fin heat exchangers that, according to a preferred embodiment, includes a process for increasing the stiffness and rigidity of heat exchanger fins. Stiffer fins have a greater tendency to maintain proper alignment within a stack of fins, which aids in lacing long stacks of fins with small (e.g., 5 mm) diameter tubing. Preferably, fin stiffness is increased by forming a plurality of longitudinal ribs within the fin during the fin stamping process. More preferably still, two ribs for each longitudinal row of collared holes are provided. The preferred embodiment also includes a slotted heat exchanger fin that is dimensioned and arranged for optimized thermodynamic performance when used with small diameter tubing, thus reducing the space required for a given heat exchanger system.

The invention relates to a preparation method of a holographic transfer film for replacing holographic gold stamping, which comprises the following steps that: a gravure coating machine is adopted, transfer paint with integrated parting and imaging functions is coated on a polyethylene terephthalate (PET) film, and baking and curing are carried out; the mold pressing is carried out on a mold pressing machine, and holographic patterns are copied onto imaging coatings; the vacuum aluminum plating is carried out; a printing aluminum washing protection ink version roller is designed according to gold stamping pattern requirements, and protection ink is printed; the aluminum washing is carried out in an aluminum washing machine, and aluminum layers in positions without printing the protection ink are washed away and baked; extinction oil is coated on the coating machine, and the holographic patterns in hollow positions, i.e. the positions in which the aluminum layers are washed away are removed; the transfer film and paper are compounded on a compounding machine; the PET film is peeled off on a peeling machine and is recovered and utilized, so the transfer paper with the holographic patterns is made; and printing products with holographic gold stamping patterns are made through subsequent offset printing or intaglio printing and the like. The method can completely replace the holographic gold stamping process, the production efficiency is high, and the method is suitable for the large-scale production operation.

The instant disclosure relates to a lamp having a heat dissipating lamp shell particularly suitable for housing solid state light sources. The lamp comprises a lamp shell of stamping construction and a light source unit. The lamp shell comprises an outer pot portion and an inner tray portion substantially concentrically coupled to the outer pot portion. Externally, the lamp shell forms a substantial portion of the lamp. The light source unit comprises a light module disposed on the inner tray portion of the lamp shell, a controller placed at the rear portion of the lamp shell, and an electrical connecter arranged exposedly from the rear of the lamp. The lamp shell of stamping construction is beneficially characterized by the light weight and strong structural integrity, which attribute to the work hardening property of the stamping process.

The invention provides a hot stamping and warm blanking composite forming technology and mould for ultrahigh-strength steel. By means of the composite mould, blanking is composited in a hot stamping process, and trimming and punching are performed on sheet metal at a temperature higher than a martensite formation temperature. The hot stamping and warm blanking composite forming technology comprises the following processes of putting the sheet metal of the ultrahigh-strength steel heated to achieve complete austenitizing into the composite mould, performing stamping forming and then performing cooling and quenching; heating sheet metal needing blanking locally, keeping a warm state, performing warm blanking after completion of forming, and performing cooling further in a pressure maintaining mode. The hot stamping and warm blanking composite forming technology and mould for ultrahigh-strength steel effectively solves the problems of poor quality, low precision, high cost and long period of holes trimmed and punched in the later period of the ultrahigh-strength steel and has great practical significance in production practice.

The invention relates to a design method of a single-vane stamping type non-clogging impeller. Compared with the single-vane non-clogging impellers designed by the traditional methods, the single-vane non-clogging impeller designed by the invention has high non-clogging performance and efficiency and can meet the requirement of stamping process for the geometric parameters of the impeller.

The invention discloses an electronic commerce logistics parcel stamping device, and relates to the technical field of electronic commerce. The electronic commerce logistics parcel stamping device comprises a supporting frame. A pair of rotating wheels are installed on the supporting frame in a rotating mode. The rotating wheels are sleeved with a conveying belt used for conveying parcels. A motorII which is installed in a rotating mode is fixed to the supporting frame. A threaded sleeve which is vertically arranged is connected to the supporting frame in a driving mode through a lifting mechanism. The lower end of the threaded sleeve is fixedly connected with a stamping mechanism located above the conveying belt. According to the electronic commerce logistics parcel stamping device, theconveying belt can be driven to make stepped movement through an arranged stepping mechanism, the parcels on the conveying belt can be conveyed rightwards at equal intervals under the pushing effect of a push plate, and the arranged lifting mechanism can drive the threaded sleeve to be lifted up and down vertically; a stamping head can stamp the parcels once every time the threaded sleeve is lifted up and down, the parcels can be stamped automatically, and work stamping efficiency is greatly improved; and an arranged moving sleeve can slide vertically relative to a fixing block, attaching timeof the stamping head and the parcels is made sufficient in the stamping process, and the stamping effect is better.

The present invention discloses an ultra fine patterning process for multi-layer substrate by using selective deposition resist which inhibits metal nucleation during metal deposition process. The present invention can be executed by a fine pattern stamp adsorbing the self-assembled monolayers (SAM), then proceeds the stamping process on a surface of a substrate to achieve the selective deposited SAM with ultra fine pattern. Then, the metal deposition process will be proceeded to make metal deposited selectively on the portion not covered by the SAM to form the patterned metal layer directly.