| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Method of making an axle element for a motor vehicle, and shaping die for carrying out the method | US10126475 | 2002-04-19 | US06735996B2 | 2004-05-18 | Michael Heussen; Bernard Comte; Vincent Von Niederhäusern; Andreas Baak |
| In a method of making an axle element for a motor vehicle, a rod-shaped semi-finished product of aluminum is use used as starting material and heated to a desired shaping temperature. A first end of the semi-finished product is upset in a cavity of a shaping die by means of a first punch. Subsequently, the other end of the semi-finished product is compressed in the cavity by a second punch, whereby compressed material is forced into a branch of the cavity to form a pre-forge part with a leg portion. The pre-forge part is then forged into a finished axle element, e.g. a swivel bearing. | ||||||
| 102 | Method of manufacturing an engaging element for one way clutch improving squareness of cam face relative to side surfaces | US354076 | 1994-12-06 | US5632179A | 1997-05-27 | Tetsuaki Numata; Shigeo Maeda |
| A method of manufacturing an engaging element for a one way clutch requires no special control with respect to such factors as squareness between a cam face and side surfaces, possible flaws, and cut size, and enables production of the engaging element for a one way clutch at low cost. The method includes shearing a material by a press to prepare a sheared member of a predetermined size, and a forging process. The forgoing process includes a first step of striking one sheared surface of the sheared member, a second step of inverting the sheared member and striking the other sheared surface of the sheared member, a third step of inverting the sheared member and striking the one sheared surface of the sheared member, and a fourth step of inverting the sheared member and striking the other sheared surface of the sheared member. | ||||||
| 103 | Process for producing suspension component of light alloy | US17059 | 1993-02-12 | US5357775A | 1994-10-25 | Yasushi Nakazawa; Yasunori Oku; Kaoru Kusaka |
| An upper arm 1 of a front suspention made of light alloy is provided with a lateral rubber bush mounting bore 2 connected to a vehicle body, and a vertical joint mounting bore 6 connected to a wheel support member. When forming the arm 1, a shape of the arm 1 is first determined such that the mounting bores 2 and 6 are directed in the same direction. Then, the arm 1 is extuded in an axial direction of the bores, and after cutting off the extruded material at a predetermined length, a portion of the mounting bore 2 is twisted by 90.degree.. Therefore, the extrusion can be employed for producing the suspention arm made of light alloy without increasing a thickness thereof. | ||||||
| 104 | Method of manufacturing a hemisphere shoe for a swash plate compressor | US492993 | 1990-03-13 | US5076089A | 1991-12-31 | Yasuhiko Takami |
| A method of manufacturing a hemisphere shoe provided between a piston and a slant plate of a swash plate compressor, said method comprises the steps of: cutting a cylindrical blank corresponding to a weight of the hemisphere shoe; plastic-working the cylindrical blank into a blank to be cold-forged having a large diameter plane portion at one end and a small diameter plane portion at another end and a body portion having a curved surface and a higher height than the finished hemisphere shoe and a smaller maximum diameter than the finished hemisphere shoe in a middle portion of the blank; positioning the blank so that the small diameter plane portion contacts with a recess die sufrace of a first die and the large diameter plane portion contacts with a substantially plane die surface of a second die; cold-forging the blank to be cold-forged by pressing the both dies till the dies are in a close contact with each other by means of a cold-forging press including the first die haivng a hemisphere recess die of a substantial hemisphere shape with a radius anticipating a strain caused by a heat-treating; heat-treating the cold-forged hemisphere shoe; and glaze-plishing the heat-treated hemisphere shoe. | ||||||
| 105 | Forging method for a hollow article | US364381 | 1989-06-09 | US4918969A | 1990-04-24 | Hirosato Takeuchi; Yutaka Tanaka; Osahiko Miyazaki; Noboru Saito; Haruo Kubo; Naoyuki Kotake; Makoto Nagumo |
| A forging method comprises the following four steps: a first step of disposing a columnar material into a first die and extruding one end portion of the material with a first punch in a direction opposite to the advancing direction of the first punch, a second step of deepending a first blind hole in a second stepped die with a cavity having large and small internal diameter portions, and extruding the other end portion of the material into the inside of the small internal diameter portion of the cavity with a second punch which has been previously extended thereinto, a third step of fitting the first and second blind holes to third punches while exposing the small outer diameter portion from a third die and pressurizing, by means of a sleeve, only an end face portion of the small outer diameter portion formed with the second blind hole to expand the small outer diameter portion of the material toward an outer periphery, and a fourth step of punching out a blind portion of the material. | ||||||
| 106 | Gear-shift lever having variable thickness walls | US123945 | 1987-11-23 | US4794812A | 1989-01-03 | Takeru Tanaka |
| A transmission gear shifting lever of unibody construction from a hollow cylindrical material, comprising a connector part, a spherical part, a first cylindrical part, and a tubular lever body comprising a lower part, a tapered single cylindrical part, and a threaded part at the end, wherein the connecting part and the spherical part have wall thicknesses that are greater than the wall thickness of the first cylindrical part. | ||||||
| 107 | Method of manufacturing gear-shift lever and the lever constitution | US875270 | 1986-06-17 | US4732030A | 1988-03-22 | Takeru Tanaka |
| The present invention relates to a method of manufacturing a power-transmission-gear-shifting lever which is made available for conventional passenger cars, trucks, agricultural machinery, civil-engineering and construction machinery, and other machinery by making up said lever with either a plastic or metallic tube, while the invention also relates to the constitution of the lever reflecting its preferred embodiments, wherein the manufacturing method is comprised of the sequential steps of first forming expanded tubular portion by expanding an end of tube with punching means, followed by contraction of the expanded tubular portion into eliptic shape using mold means before eventually cold-forging the eliptic portion into spherical shape, thus allowing the manufacturer to effectively save welding process and simplify assembly process before completing a light-weight gear-shifting lever. | ||||||
| 108 | Swash plate type compressor shoe | US699109 | 1985-02-07 | US4662267A | 1987-05-05 | Yoshihiro Kaku; Keiichiro Otsu |
| There are disclosed a shoe which is interposed between a swash plate and a piston of a swash plate type compressor and which converts rotary movement of the swash plate into reciprocal movement of the piston, and a method for manufacturing the same. The shoe has a hemispherical part which is in slidable contact with the surface of a piston defining a hemispherical recess, and a flat end face which is in slidable contact with a bottom end face of the swash plate. According to the method of the invention, a columnar element is compressed in the axial direction for plastic deformation in such a manner that one end of the columnar element is deformed along the inner surface of a hemispherical recess of a die while the other end is urged against the flat end surface of another die. A shoe can be easily manufactured with this method, which has a flank between the hemispherical part which is in slidable contact with the surface of the piston defining the hemispherical recess and the bottom end face of the swash plate which is in slidable contact with the swash plate. According to this method, a hole of a predetermined size may alternatively be formed at the end face of a columnar part of the element, and the end face of the columnar part is cut into a conical shape while reducing the diameter of the hole toward the opening side thereof. Still alternatively, the periphery of the end face of the columnar part may be cut into a conical shape and then pressed to form a hemispherical part. A great flow of the material and local exertion of a high load on the element are prevented. | ||||||
| 109 | Commutator ring manufacturing method and apparatus | US552984 | 1983-11-17 | US4611391A | 1986-09-16 | Peter Franz; Werner Ross |
| A method for manufacturing commutator segmental rings, in which ring-shaped blanks (1) are transformed into commutator segmental rings. The method is carried out with a forming apparatus which uses a ring-shaped die (21) and a rib-forming die (25) to transform the blank (1) into a commutator segmental ring (2) with a flange (4) on its end and a shaft portion (3) with commutator segments (5) and cross pieces (7) connecting them. During the forming process, the die (25) moves against the force of an adjustable elastic counter-pressure apparatus (16; 13, 17, 19; 28). The counter-pressure on the facing side (24) of the upper punch (22), on which the die (25) fits, minimizes formation of a burr on the workpiece, and it permits use of a fastening means of reduced clamping power, thereby according the die (25) a greater pressure stability. | ||||||
| 110 | Method of forming a precision ball track | US801494 | 1985-11-22 | US4611373A | 1986-09-16 | Daniel W. Hazebrook |
| A method for forming a precision ball groove track in a part, especially in an outer race member of a universal joint. The method includes the steps of forming a recess groove in the ball race groove track and ball finish machining the race groove track to a predetermined precision shape, the recess reducing groove the wear on the finish machining tool used during the finish machining step. | ||||||
| 111 | Forging apparatus | US638250 | 1984-08-06 | US4543812A | 1985-10-01 | Donald L. Theobald |
| A blank section of a steel rod is heated and then successively impacted between hot forging dies to form a preform or rough forging ball joint socket having a tubular socket portion and a laterally projecting mounting flange portion. The rough forging is then inserted into a die set assembly including an upper die member surrounding a relatively movable punch and a lower die member surrounding a relatively movable ejector member. The upper die member is supported by a piston of a hydraulic cylinder which moves with the punch, and the upper and lower die members cooperate to produce the desired precision external configuration of the socket and flange portions. After the die members are closed, the punch cooperates with the ejector member to form the desired precision internal configuration of the tubular socket portion. | ||||||
| 112 | Forging method | US352191 | 1982-02-25 | US4463590A | 1984-08-07 | Donald L. Theobald |
| A blank section of a steel rod is heated and then successively impacted between hot forging dies to form a preform or rough forging ball joint socket having a tubular socket portion and a laterally projecting mounting flange portion. The rough forging is then inserted into a die set assembly including an upper die member surrounding a relatively movable punch and a lower die member surrounding a relatively movable ejector member. The upper die member is supported by a piston of a hydraulic cylinder which moves with the punch, and the upper and lower die members cooperate to produce the desired precision external configuration of the socket and flange portions. After the die members are closed, the punch cooperates with the ejector member to form the desired precision internal configuration of the tubular socket portion. | ||||||
| 113 | Method to manufacture pole pieces for dynamo electric machine, and so-made pole piece | US408192 | 1982-08-16 | US4448055A | 1984-05-15 | Hans Wurth; Jurgen Leinhos |
| A blank 1 is removed from a strip of material 2 and placed in a die against which a lower punch and an upper punch are operable. In one step, by moving of the lower punch upwardly, shaped to form the pole core or pole piece, and the upper punch against the blank in the die, the pole piece, pole shoes, and outer pole radii at the end portions are formed. If desired, the pole can be perforated and the perforation formed with a thread, and accurately sized in the subsequent cutting and sizing step. | ||||||
| 114 | Method for manufacturing a piston rod unit | US268331 | 1981-05-29 | US4419804A | 1983-12-13 | Ludwig Axthammer |
| In illustrative embodiments a method has been shown for manufacturing a piston rod unit. The piston rod unit includes a metallic tube shaped piston rod member defining a cavity therein and at least one terminal member having a fastening pin fastened within a respective end portion of the cavity. The fastening pin is provided with an outer diameter which is larger than the initial inner diameter of the piston rod member. This fastening pin is pressed into an end portion of the cavity so as to radially expand the piston rod member along at least a part of the end portion to an expanded outer diameter larger than the initial outer diameter of the tubular piston rod member. Hereupon the piston rod member is radially compressed by hammering within the area of the expanded outer diameter until the initial outer diameter is substantially reestablished. | ||||||
| 115 | Method and apparatus for forming an electrical connector | US338804 | 1982-01-11 | US4416141A | 1983-11-22 | Russell A. Nippert |
| A method and apparatus for forming an electrical connector having a first hollow cylindrical portion of a first outside diameter and a second hollow cylindrical portion of a second outside diameter which is less than the first outside diameter, are provided in which two successive extrusion operations are performed. In the first extrusion operation, a billet of ductile metal is placed in a first die and an intermediate billet is formed by back extruding the first portion of the connector over a punch while forward extruding a part of the billet in the die to form a portion of reduced diameter approximately equal to the second outside diameter of the electrical connector. In the second extrusion operation, the intermediate billet is placed in a movable die section and the intermediate billet and the movable die section are moved downward from an initial position by means of a finish punch. The finish punch contacts the intermediate billet and is received within a first cylindrical recess defined by the billet. Downward movement of the movable die section forces the portion of reduced diameter of the intermediate billet over a stationary punch, thus forward extruding the second cylindrical portion of the connector. The finish punch is then retracted from the connector, and the connector is ejected from the movable die section by raising the stationary punch with respect to the movable die section. | ||||||
| 116 | Method for cold forming metal articles having diverging members | US257163 | 1981-04-24 | US4399682A | 1983-08-23 | Kenneth P. Hackett |
| A method for cold forming a metallic billet into an article having divergent members with a single hit comprises depositing the billet centrally within a die cavity between a first member and a second member. The first and second members are hydraulically urged toward one another at an equivalent velocity until the divergent portions of the die cavity are filled. The forming velocity is between about 30 percent and about 60 percent of the normal forming velocity for the material comprising the billet. | ||||||
| 117 | Method for forging large irregular shapes in a closed-die operation in a conventional open-die press | US102097 | 1979-12-10 | US4305273A | 1981-12-15 | Wayne A. Martin |
| A method and apparatus for forging large irregular shapes in a closed-die operation, particularly for forging a blank to be machined to form a fluid end piece of a pump. The blank has a substantially rectangular parallelepiped body and a block projecting sideways from the body. The apparatus has a die opening of a shape to form the blank. In a single operation in a conventional open-die press a heated workpiece is upset and a portion squeezed sideways to form the block. | ||||||
| 118 | Method and apparatus for forming elongated articles having reduced diameter cross-sections | US18836 | 1979-03-08 | US4300378A | 1981-11-17 | Sinnathamby Thiruvarudchelvan |
| A method and apparatus for forming elongated articles whereby a torque is transmitted to the deforming material as it passes through a die cavity to facilitate the reduction in the cross-section thereof as it passes therethrough. In one embodiment, the apparatus includes a rotatable die member having a longitudinally extending die cavity, the end region thereof having a reduced diameter circular cross-section. A cavity region upstream of the downstream end region has a non-circular cross-section. Means are provided for positively rotating the die member about its longitudinal axis. In the corresponding embodiment of the method of the present invention, the material from which the article is formed is drawn under tension or compression through the die cavity while the die member is positively rotated so as to impart a torque to the material passing through the cavity which produces shear stresses within the material which facilitates a reduction in the circular cross-section as the material moves through the die cavity. | ||||||
| 119 | Machine and method for electric forging of the end of a metallic stick in a plane generally perpendicular to the stick | US942777 | 1978-09-15 | US4204418A | 1980-05-27 | Toraji Mochizuki |
| A machine and method whereby a metallic stick is pressed into a mold which is moved along two axes substantially perpendicularly to the stick so as to make the end of the stick follow the mold while it is softened by heat produced by passage of an electric current between the mold and the stick, the stick only being moved in its axial direction while the mold is only moved in the two substantially perpendicular directions to this axial direction. | ||||||
| 120 | Isostatic working process | US3782159D | 1972-06-16 | US3782159A | 1974-01-01 | MARTINET C |
| The invention relates to a process for the working of pieces of metal by high-pressure isostatic die-stamping. After insertion of the ingot 1 covered with plastic material 2 into the pressure chamber 3 whose walls are constituted by collars 4 and 5 and the floor by the bottom die 6 mounted on the base 7 of the press, the top die 8 is lowered as indicated in FIG. 2, its surface 9 containing the upper shaping impression. During its re-ascent, the top die 8 takes with it the covering 2 and the article 1, which remains adhering to the top die owing to the fact that its die-stamping seam tightly overlaps the residue of covering material 2 in the clearance 11 between the dies 9 and 6.
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