Class / Patent application number | Description | Number of patent applications / Date published |
072467000 | Tool comprising closed periphery deforming passageway | 7 |
20090314050 | DIE ASSEMBLY AND A METHOD OF MAKING IT - The present invention provides a novel die assembly for extruding and drawing ferrous and non-ferrous metal, and also to a method of making the same. The die assembly according to the present invention comprises a die core ( | 12-24-2009 |
20100043520 | WIRE DRAWING DIE - One object of the present invention is to provide a wire drawing die excellent in strength and wear resistance. The wire drawing die has a core formed using highly hard diamond polycrystalline body made substantially only of diamond and produced by directly converting a raw material composition including a non-diamond type carbon material into diamond and sintering the diamond at an ultra high pressure and an ultra high temperature without adding a sintering aid or a catalyst, the polycrystalline body having a mixed construction including fine-grained diamond crystals with a maximum grain size of less than or equal to 100 nm and an average grain size of less than or equal to 50 nm and plate-like or particulate coarse-grained diamond crystals with a minimum grain size of greater than or equal to 50 nm and a maximum grain size of less than or equal to 10000 nm. | 02-25-2010 |
20100132430 | EXTRUSION DIE DEVICE - An extrusion die device includes a first die having a shaping hole. An inner periphery of the shaping hole has a plurality of twisted guiding portions. A second die includes a plurality of guiding holes. A bridge is formed between two adjacent guiding holes. A plurality of tongues extends from a surface of each bridge and each includes an input end face contiguous to the bridge and an output end face whose projection on the surface of the bridge has an angular shift relative to the input end face. A side of the second die is coupled to an input side of the first die. The tongues are received in the shaping hole. Material is squeezed through a passage between each tongue and the inner periphery of the shaping hole and rotates according to the twisting direction of the tongues, forming a hollow object with an integrally formed helical rib. | 06-03-2010 |
20130255351 | DIE FOR MACHINE PRESS - A die having adequate flexibility at an entirety thereof while maintaining rigidity of a design surface is presented. A die is a die for a machine press. The die is a die for pressing a work plate together with a contraposed die and forming the work plate into a target shape. The die is provided with a design block, a positioning block, and a plurality of rods. The design block has a design surface for transferring the target shape to the work plate. The positioning block is used for positioning the die relative to the contraposed die. The design block and the positioning block are connected by the plurality of rods. | 10-03-2013 |
20140283577 | EXTRUSION DIE FOR FORMING HOLLOW MATERIAL - An extrusion die is provided with a male die through which a billet is extruded from an upstream side to a downstream side and, the male die adapted for forming an inside shape of a hollow material; and a female die for holding the male die and forming an outside shape of the hollow material. The male die is formed of a spider and a holder for holding the spider. The spider is formed of a mandrel and a plurality of bridge parts for supporting the mandrel, and enabling a distal-end outer peripheral surface to engage with a bridge-holding surface. The distal-end outer peripheral surface of each of the bridge parts and the bridge-holding surface of the holder are joined by shrink-fitting. | 09-25-2014 |
20150040639 | HOT FORGING DIE - Provided is an inexpensive hot forging die which allows a desired shape to be obtained even from a large-sized forging material. | 02-12-2015 |
20150089991 | THRUSTING DEVICE FOR PIPES OR THE LIKE TO BEND IN A PIPE OR THE LIKE BENDING MACHINE - A thrusting device for pipes or the like to bend in a pipe or the like bending machine suitable for a quick-acting coupling-release. | 04-02-2015 |