36 results about "Burr formation" patented technology

This invention is a method of fabricating a conformal lithium polymer battery comprising the steps of: selecting a slab of lithium polymer battery material of a desired height, containing a desired number of cells; freezing the slab; vertically cutting the slab to a desired shape; attaching a lead to each anode conductor; and attaching a lead to a each cathode conductor. The slab may contain one or many cells. The leads may be made of multistranded, metallic wire, metallic ribbon, low melting point alloy, self-healing metal, and litz wire. Attachment is accomplished so as to minimize tension on the leads. The cut slab may need to be deburred after cutting and before attaching leads. Preferably, burr formation is prevented by recessing the edge of the anodic or cathodic half cells. Lead attachment my be accomplished by: wire bonding; wedge bonding; adhesive bonding with conductive epoxy, anistotropic conductive adhesive or conductive thermoplastic; stapling; adhering the lead to the electrode by electropolymerization; welding; and growing a lead in place by electroless plating, electro-plating or a combination of electroless plating and electroplating. The distal ends of the leads may be connected together so that the cells are connected together in series, in parallel or some in series and the remainder in parallel. After the leads have been attached to the cut slab and connected together, the assembly will preferably be wrapped with standard packaging for lithium polymer batteries.

A molding precursor which comprises a main body part and a burr formation part protruding outward from the edge of the main body part and extending continuously along the edge, wherein the main body part comprises a first base comprising many reinforcing fibers and a second base which comprises many fibers and has been superposed on the first base in an outer peripheral part of the main body part, the burr formation part is constituted of that part of the second base which protrudes outward from the edge of the main body part, and spaces among the many fibers constitute passages for a molding resin.

A structure. The structure includes a stack of two or more sheets. Successive sheets in each pair of successive sheets of the stack are adhesively coupled to each other by an adhesive layer consisting of a removable adhesive that is removable if heated to an elevated temperature at which the removable adhesive melts. The removable adhesive is also disposed on top and bottom surfaces of the stack. The removable adhesive consists of a liquid while adhesively coupling the successive sheets to each other. A first surface of a first layer coupled with the removable adhesive to a first surface of the stack. A first surface of a second layer is coupled with the removable adhesive to a second surface of the stack. The first and second layers are adapted to prevent burr formation in a hole subsequently drilled through the stack.

The invention discloses a valve element edge grinding burr form prediction method based on energy conservation. According to the method, a valve element working edge grinding tiny burr form predictionmodel is established based on the energy conservation law according to a rubbing-plowing-cutting removal mechanism of materials in the grinding process, a fourth deformation zone theory and a chip bending model, and optimization of a grinding process is realized according to the action relation of the grinding depth, the feeding speed and the grinding wheel speed on the burr form. The method hasthe advantages that the edge grinding tiny burr form prediction model based on energy conservation is established, a basis is provided for burr formation active control and accurate removal, and burrformation can be remarkably reduced or inhibited.

A process for making a hole into a substrate by a laser is provided. According to the proposed process, in a first step, at least one intermediate hole is produced into the substrate by at least one laser, the intermediate hole having an intermediate diameter that is smaller than a final diameter of the hole to be made. In a second step, the hole having the final diameter is produced into the substrate by the at least one laser.

A molding tool and process for producing a plate which has been foamed, injected or cast in situ with plastic, for example, a cover provided with a plastic frame for a motor vehicle roof. To prevent burr formation, at least one wire (13, 14) which can be heated is provided in the region of at least one parting line between adjacent tool parts (11, 12, 6) to eliminate excess plastic material of the plastic frame (8).

A method for backing the inside teeth (2) of a sliding sleeve (3) produced by way of powder metallurgy for a manual transmission is described where the backings (1) of the teeth (4) forming the front-side pitches (9) are formed with the aid of a rolling tool (5) by back rolling accompanied by plastic deformation of material from the backing region. In order to prevent burr formation, it is proposed that the front-side tooth sections (8) delimited by the backings (1) are simultaneously calibrated whilst forming and/or calibrating the relevant pitches (9) with the aid of the rolling tool (5) for forming the backings (1).

Provided is a pump body die casting welding method. The pump body die casting welding method includes the following steps that 1 a die casting is machined and polished until the phenomena of burrs, die drawing, excessive materials and misrun do not exist in a concave groove of the die casting; 2 a flawless insert is taken, and the periphery of a convex groove of the insert is coated with grease; 3 a sealing ring is added to the insert after the insert is coated with the grease, and the convex groove is fixed; 4 the insert is struck to enter the concave groove, wherein the insert is lower than the outside plane of the concave groove; 5 the size of the die casting is corrected, and the surface of the die casting is polished; 6 the die casting is placed on a laser welding machine, laser welding is conducted on the die casting, and leakage testing is conducted on the die casting after welding is completed. According to the pump body die casting welding method, polishing, insert machining and welding are conducted on a pump body formed in a die-casting mode, the surface of the pump body formed in the die-casting mode is smooth and free of burrs, the formed pump body is more complete in structure, defects formed in the die pressing process are well overcome, and the qualified pump body is machined and obtained.

A system and a method for measuring drilling damage in fiber reinforced plastic (FRP) composites is described. Multiple holes are drilled in the FRP composite using a drill having nominal diameter, and the FRP composite is separated into multiple drilled blocks. Each block, covered with the black substrate, is scanned on a scanner to generate a scanned image depicting a hole region, a background, and delamination damage peaks. For each scanned image, a maximum delamination damage peak and a maximum diameter of a first circle concentric with the drilled hole and passing through tip of the maximum delamination peak, are measured. Further, a delamination size and a delamination factor are calculated based on the maximum diameter of the first circle and the nominal diameter of the drill.

The invention provides a grinding wheel which can inhibit extension and burr formation of a ductile material such as resin or metal compared with the prior art. A grinding wheel for grinding a ductile material includes: an annular grinding wheel base having a fixed end portion fixed to a lower end of a main shaft and a free end portion facing a ground workpiece; and a plurality of rectangular plate-shaped grindstones, wherein the long sides of the plurality of grindstones are arranged at the free end part at specified intervals along the circumferential direction of the grinding wheel base station. The grindstone is a rectangular plate-shaped electroformed grindstone in which abrasive grains are fixed by nickel plating, the grindstone has a thickness of 1 mm or less, and the value represented by the ratio of the height of the grindstone from the free end to the thickness of the grindstone is 5 or more and less than 35.