子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | METHOD OF FORMING STEEL BALL BLANKS, IN PARTICULAR FOR ROLLING BEARINGS | PCT/IT2006000184 | 2006-03-23 | WO2007108027A8 | 2008-02-14 | MAORENZIC HERMINIO |
| In a method of forming steel ball blanks (4), in particular for rolling bearings, a starting steel cylinder (1) is plastically deformed; the plastic deformation is firstly performed in radial direction, for obtaining an essentially cylindrical blank (1a) provided with an intermediate axial portion (6a) having reduced cross-section with respect to that of the starting cylinder (1), and then in axial direction by pressing to obtain a ball blank (4) to be directly subjected to hardening. | ||||||
| 142 | FORGED ROLLER | PCT/US2005024637 | 2005-07-12 | WO2006017260A2 | 2006-02-16 | KRINTZLINE DONALD E; BORDNER MARK W |
| A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with an advantageous grain pattern and devoid of structural defects previously attributable to the presence of sheared end face material in the radiused corners of the blank and flash at its mid-section. | ||||||
| 143 | Green ball grinding method, ceramic sphere fabrication method, and grinding apparatus | US14704620 | 2015-05-05 | US09452503B2 | 2016-09-27 | Yasutake Hayakawa; Katsutoshi Muramatsu |
| A green ball grinding method includes the step of supplying a green ball between a first surface of a first member and a second surface of a second member constituting a grinding apparatus, and the step of grinding the green ball between the first surface and the second surface while the green ball rotates around its own axis and in orbital motion. In the step of grinding the green ball, the step of causing the green ball grinding to proceed while applying load between the green ball and each of the first surface and the second surface, and the step of modifying the rotation axis of the green ball by reducing the load lower than in the step of causing the green ball grinding to proceed are executed alternately. | ||||||
| 144 | GREEN BALL GRINDING METHOD, CERAMIC SPHERE FABRICATION METHOD, AND GRINDING APPARATUS | US14704620 | 2015-05-05 | US20150231754A1 | 2015-08-20 | Yasutake HAYAKAWA; Katsutoshi MURAMATSU |
| A green ball grinding method includes the step of supplying a green ball between a first surface of a first member and a second surface of a second member constituting a grinding apparatus, and the step of grinding the green ball between the first surface and the second surface while the green ball rotates around its own axis and in orbital motion. In the step of grinding the green ball, the step of causing the green ball grinding to proceed while applying load between the green ball and each of the first surface and the second surface, and the step of modifying the rotation axis of the green ball by reducing the load lower than in the step of causing the green ball grinding to proceed are executed alternately. | ||||||
| 145 | Method of cold-forming near net shape metal roller blanks for anti-friction bearings | US12123485 | 2008-05-20 | US07712221B2 | 2010-05-11 | Donald E. Krintzline; Mark W. Bordner |
| A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with an advantageous grain pattern and devoid of structural defects previously attributable to the presence of sheared end face material in the radiused corners of the blank and flash at its mid-section. | ||||||
| 146 | FORGED ROLLER | US12123485 | 2008-05-20 | US20080216319A1 | 2008-09-11 | Donald E. Krintzline; Mark W. Bordner |
| A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with an advantageous grain pattern and devoid of structural defects previously attributable to the presence of sheared end face material in the radiused corners of the blank and flash at its mid-section. | ||||||
| 147 | Ball Element for Two-Part Ball Pivots and Process for Manufacturing Same | US11568640 | 2005-05-02 | US20070211972A1 | 2007-09-13 | Jochen Kruse; Dirk Adamczyk; Reinhard Stoeterau; Jean-Paul Castanet |
| A process is provided for manufacturing balls, especially for ball and socket joints, as well as to a ball element for two-part ball pivots. The microalloyed carbon-manganese steel balls are manufactured by cold extrusion and subsequent grinding. Annealing can thus be completely eliminated, as a result of which a less expensive material can be used. The process makes possible a manufacture of balls especially for two-part ball pivots in a simpler manner and at a lower cost, and the surface finish and the material quality as well as the strength and the wear resistance are at the same time preserved or increased. As a result, the effort needed to manufacture the balls is reduced, and, moreover, the problem of the impact marks often developing on the ball surfaces during tempering is eliminated. | ||||||
| 148 | Race member in hub unit and method of producing the same | US11647169 | 2006-12-29 | US20070119054A1 | 2007-05-31 | Kazuto Kobayashi; Isao Shintou; Kiyoshi Ootsuka; Kouhei Mori |
| A race member in a hub unit for supporting a wheel. The race member includes a cylinder portion, a flange portion bend radially outward from the cylinder portion, and a continuous portion that integrally connects the cylinder portion with the flange portion. The race member is integrally formed by subjecting a metal plate to punching and cold plastic working. The continuous portion is larger in thickness than the metal plate. | ||||||
| 149 | Trailer ball and production thereof | US11003218 | 2004-12-03 | US20060119075A1 | 2006-06-08 | Sharon Chen |
| A method is disclosed for making a trailer ball. The method includes a step of providing a block, a step of spheroidizing graphite in the block, a step of cold forging the block into a trailer ball. The trailer ball includes a disc, a ball formed on a side of the disc, a non-circular neck formed on an opposite side of the disc and a bolt extended from the non-circular neck. The bolt is tapped with a thread. | ||||||
| 150 | Process for manufacturing miniature ball bearings | US10371632 | 2003-02-20 | US06990738B2 | 2006-01-31 | Rikuro Obara |
| A process for manufacturing miniature ball bearings that reduces material loss to improve manufacturing efficiency. The process consists of obtaining an inner and outer ring blank by cutting a first blank, forging the first blank to obtain a final blank, and separating the final blank to form an outer ring blank and an inner ring blank. The outer ring blank has an outer diameter of at most 13 mm. Cutting the first blank is performed by press cutting. | ||||||
| 151 | Suspension system for a vehicle having a vehicle stabilizer bar with integral end links | US09567457 | 2000-05-08 | US06648350B1 | 2003-11-18 | Mark Clements; Joe Fader; Chris Keeney; Steve Yollick; Jim Hawkins |
| A suspension system includes a stabilizer bar having an integral ball link directly formed as each end of the stabilizer bar. Because the ball link is integral to the stabilizer bar, there are no bolts, nuts or other fasteners that limit the articulation of the end link relative to the stabilizer bar. The present invention thereby provides greater end link articulation and improved suspension system performance. | ||||||
| 152 | Hollow tubular blank provided in wall thereof with one or more reinforcing ribs | US10132475 | 2002-04-26 | US20030200783A1 | 2003-10-30 | Dean Shai |
| A hollow metal tubular blank is provided in the wall with one or more reinforcing ribs which are formed by extrusion of the wall. The reinforcing ribs have an inner ridge and an outer ridge. The reinforcing ribs serve to enhance the structural strength of a retaining slot which is formed in the reinforcing portion of the wall of the blank. | ||||||
| 153 | Method of producing aluminum ball, method of producing compressor shoe, and compressor shoe produced by the method | US10288004 | 2002-11-04 | US20030088979A1 | 2003-05-15 | Masanobu Tomita; Hironobu Tsushima |
| A method of producing an aluminum ball, comprising the steps of: a cutting step of cutting a bar-shaped blank formed of a material containing aluminum as a major component, into cut pieces; an aluminum-ball forming step of forming each of the cut pieces into the aluminum ball by semi-closed die forging, said aluminum ball having a flash formed on an outer circumferential surface thereof; and a flash removing step of removing the flash from the aluminum ball formed by forging. Also disclosed is a method of producing a shoe for a compressor, from the aluminum ball. | ||||||
| 154 | Method and system for warm or hot high-velocity die forging | US931761 | 1997-09-16 | US5894752A | 1999-04-20 | Masakazu Yano; Katsuhiko Osaki; Tadatsugu Yoshida; Yoshio Kasahara |
| An axially symmetric ring work piece is formed by a warm or hot, forward and backward extruding, die forging system. In this system, a die having a rearwardly projecting portion, which projects in the opposite direction to a pressing direction, a heated work piece, and a punch having a forwardly projecting portion, are arranged, in that order, in a container. A withdrawal die is arranged between the container, and the heated work piece, the die and the punch. The die is fixed so that a die velocity V.sub.D is 0, and the punch is moved toward the die while a punch velocity V.sub.P is set to be twice as large as a withdrawal die velocity V.sub.WD and the strokes of slide of the withdrawal die are not less than one-half of a forward-extruded foot length of a product. Thus, the forward and backward simultaneous extrusion can be substantially performed in a single-action type, short-stroke, die forging system. In addition, it is possible to effectively and accurately form a ring part, which has good metal flow and no defects, and which has a stable quality, at higher than 80 strokes per minute. | ||||||
| 155 | Method of manufacturing press-formed product | US768918 | 1996-12-18 | US5860313A | 1999-01-19 | Yoshitaka Nagai; Katsuyuki Taketani |
| A method of manufacturing a press-formed product having a base portion and a projecting portion which is integral with the base portion and projects in a direction different from the base portion, wherein a first forming part for forming the base portion and a second forming part which is integral with the first forming part and projects in a direction different from the first forming part are provided in a divided forming mold, and the first forming part communicates with an accommodating hole having an alloy material input port which is smaller in area than the first forming part, the method comprising the steps of moving a material placed in the accommodating hole, in the state of plastic flow by means of pressure means, and moving the material in the state of plastic flow while sequentially changing the direction of movement of the material, from the accommodating hole to the first forming part and then from the first forming part to the second forming part, thereby press-feeding and forming the alloy material while applying a strain thereto. | ||||||
| 156 | Apparatus and method for forming a ball of relatively small diameter | US493005 | 1995-06-21 | US5660073A | 1997-08-26 | Michael R. McBroom; Willard A. Farley |
| An apparatus and method for forming a ball of relatively small diameter from metal wire includes a cutoff bar and a slide mechanism for shearing a length of metal wire from the remainder thereof at a first station to provide a blank with which a ball is subsequently formed and for transporting the blank to a second station and also includes a specially-designed punch assembly for forming the blank into a ball at the second station. The punch assembly includes a main slide body and a blank-engaging plunger assembly slidably mounted on the main slide body for sliding movement therealong wherein the plunger which is biased, by air pressure, from a retracted position to an extended position relative to the main slide body. As the plunger assembly is advanced toward the blank at the second station, the air-biased plunger assembly halts momentarily upon engagement with the blank, and it is during this momentary halt in the advancement of the plunger assembly that the cutoff bar and slide mechanism are begun to be moved away from the work axis to out-of-the-way positions accommodating the subsequent pressing of the blank into a ball by the punch assembly without interference from the cutoff bar and slide mechanism. | ||||||
| 157 | Method and apparatus for preforming a billet with no draft and no flash | US619121 | 1984-06-11 | US4555925A | 1985-12-03 | Ralph D. Delio; Donald J. Diemer |
| A preheated billet (A) is disposed in a billet receiving region (20) of a lower die (B). The lower preforming die defines a throat region (30) which is smaller in transverse cross section than the billet receiving region and disposed immediately therebelow. The lower die further defines an enlarged relief region (40) which is larger in all transverse dimensions than the throat region and disposed immediately therebelow. An upper die (C) includes a billet engaging surface (50) which has substantially the same transverse cross section as the billet receiving region. The upper die is forced downward by a hydraulic press or the like into engagement with the billet. As the upper preforming die continues downward, the billet engaging surface is telescopically received within the billet receiving region pushing and deforming the billet ahead of it. With continued downward movement, the billet is forced into conformity with the billet receiving region and is extruded through the throat region to hang within the relief region. In this manner, a billet is formed in part in substantially conformity with the billet receiving region and in part untapered or draft-free with the cross section of the throat region. | ||||||
| 158 | Method of forming end face wall having concentric recess in tubular workpiece | US355574 | 1982-02-23 | US4470281A | 1984-09-11 | Vladimir G. Kaporovich; Viktor G. Sereda; Valentina P. Chemeris; Vladimir V. Kaporovich; Viktor A. Makarychev; Varlen K. Pirogov; Anatoly N. Gnutov; Jury P. Sidorov; Aron N. Tsoglin; Boris S. Golberg |
| In the method of invention a side wall of a tubular workpiece is deformed in the direction of closing the edges. From a vault thus obtained, an end face wall having a flat area in the zone of the top of the vault is preformed. The flat area is pressed inside the workpiece to form a recess by means of a pressing tool and simultaneously the end face wall is formed by means of externally rolling the workpiece, the material of the workpiece being positively transferred to the zone of bending the wall of the workpiece no matter what the distance is from the side wall to this zone. Thus, end face walls and recesses of various shapes at a wide range of dimensions may be obtained.For deforming, the workpiece is preheated to a forging temperature. | ||||||
| 159 | Method of making single or double flanged track tractor roller for off-highway equipment | US297741 | 1981-08-31 | US4425779A | 1984-01-17 | Donald J. Diemer; Ralph D. Delio |
| A method of forging track tractor rollers, which comprises busting of a billet to a preformed coned end and placing a split ring around the coned end of the busted and preformed billet, and inserting the same in a blocking die to form flanges by blocking against the split ring and removing the split ring and billet. When placed in a finishing die, the hollow of the roller is preformed by a displacement method which forces the metal into the flanges against the split ring. | ||||||
| 160 | High speed ball header | US824927 | 1977-08-15 | US4130005A | 1978-12-19 | Allan D. Haines |
| A method and apparatus of cold forming is disclosed for improving die life. During a first phase a workpiece is initially engaged between a pair of dies with a sufficiently low force and velocity level to reduce die errosion but with a sufficiently high level to produce limited deformation of the workpiece and provide an area of mating engagement between the workpiece and the tool and die. During a second phase the workpiece is subjected to substantially higher deforming force and velocity levels and is further deformedto the desired shape. Such area of mating engagement is sufficiently large to reduce errosion producing localized pressures on the tool and die during such second phase. The disclosed machine is a ball header with the movable die mounted directly on the machine frame rather than on the reciprocating slide. The position of the movable die is controlled by a cam driven pusher so that the movable die position is independent of the position of the reciprocating slide. In such machine a workpiece is initially gripped during such first phase while the movement of the tool is controlled by the cam. In the second phase the tool is driven forward by the crank driven slide. | ||||||
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