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Patent Searching and Data


Matches 651 - 700 out of 6,657

Document Document Title
WO/1998/058754A1
The invention relates to a method for producing a rack (5) for a rack-and-pinion steering in motor vehicles, which method consists of the following steps: a slug (18) for the rack (5) has a shape which differs from that of a regular cyli...  
WO/1998/055248A1
A double cup (2) for a tapered roller being has a concave intervening surface (28) between the small diameter ends of its tapered raceways (22). The cup (2) is produced by roll forming a tubular blank (40) at ambient temperature into a r...  
WO/1998/053937A1
The invention relates to a device and method for producing a one-piece vehicle wheel in which a substantially discoid, undercut-free blank is cast. Immediately after casting, the blank is transported to a pressure cylinder machine while ...  
WO/1998/053934A1
The invention relates to a flowturning device (1; 101) for producing an internal geared wheel (17) with inner toothing, one set of which is slanted. The workpiece (9) is held by a retaining member (16; 116) during shaping of the first in...  
WO/1998/051933A1
A fastener (20) is described having a body comprising a substantially parallel portion (12) with a head (13) at one end and a tapered portion (14) leading to a point (15) at the other end, and a helical formation (21) providing an edge (...  
WO/1998/051432A1
Deep rolling equipment for cold working fillet radii of annular undercuts (F, F') on opposite sides of crankshaft journals has pairs of jaws (42, 43) movable between an open position for receiving the crankshaft journals and a closed pos...  
WO/1998/048201A1
A sprocket permitting the use of existing chains and having a reduced weight. Specifically, a sprocket (2) comprising a sprocket body (4) and teeth (6) provided around the periphery of the sprocket body (4), wherein the teeth (6) are mad...  
WO/1998/032556A1
The invention relates to a method and a machine for producing, by combined chip-removal and forming, rings with an inner and outer profile, preferably made from tubing material, for producing ball and roll bearings or similar. This metho...  
WO/1998/020990A1
A blank (12') of high-ductility material is formed with closely spaced thin fins (14) using a forming tool (18) which is rotatable about a tool axis (L) and comprises a set of flat circular space-apart forming discs (19) centered on the ...  
WO/1998/018583A1
When a gear blank (2A) of sheet metal having preliminary root portions (23) and preliminary top portions (24) formed on the periphery thereof is clamped between a pair of rotating dies (401, 402), a shaping roller (301) is pressed agains...  
WO/1998/008646A1
A method for forming a toothed wheel which comprises the steps of providing a circular sheet metal blank of uniform thickness, cold forming an outer peripheral portion thereof into a thickened rim of uniform generally rectangular cross-s...  
WO/1998/006521A1
A process is disclosed for manufacturing a gear part with outer teeth from a metallic workpiece shaped as a circular blank or predrawing. The gear part has a hub surface with outward projecting teeth. The workpiece is flattened in its ci...  
WO/1998/006532A1
A method of forming vehicle wheel rims includes utilizing linear friction welding. A generally planar piece of metal material (20) is placed into a coil position with two ends (22, 24) in abutment. The abutting ends are oscillated or mov...  
WO/1998/005446A1
A method of molding a cylindrical portion of a central bore-carrying sheet metal according to the present invention is used when a cylindrical portion at an outer circumferential region of a base part of a boss-carrying sheet metal is mo...  
WO/1998/005447A1
The method of molding a cylindrical portion of a cylindrical material of a sheet metal according to the present invention comprises a method of pressing a cylindrical portion of a cylindrical material, which is fitted around a rotary mol...  
WO/1998/005448A1
This invention relates to a method of manufacturing a pulley of a sheet metal for V-belts without carrying out a cutting process which deteriorates the environment of a factory. A pulley (4) of a sheet metal for V-belts obtained by the m...  
WO/1998/003281A1
A process for forming a vehicle wheel wherein a wheel blank (53) having a wheel disc (11) and a cylindrical skirt (56) extending axially from an inboard surface of the wheel disc (11) is mounted upon a spinning machine (60) and the skirt...  
WO/1998/001246A1
A shaped article sheet metal suitable for piston parts, whose peripheral wall formed integral with a base plate is four or more times thicker in axial directions and two or more times thicker in radial directions than the base plate. A w...  
WO/1997/048831A2
The invention relates to plastic working of metals and alloys, predominantly low-plastic and hard-to-work ones, e.g., nickel-, titanium-, and iron-base high-temperature alloys, and producing billets for parts made by plastic working of s...  
WO/1997/048509A1
The invention relates to plastic metal working, more specifically to methods for producing parts of the disk- or shell-type having conical, hemispherical, and also combined parts, such as disk-and-shaft ones. The invention is instrumenta...  
WO/1997/047482A1
A vehicle wheel has a rim (10) and a disc (22) joined thereto. The rim has a groove (25) consisting of a frusto-conical surface (27) and a cylindrical surface (26) to receive mating portions (29, 28) formed on the outer periphery of the ...  
WO/1997/045213A1
The invention features a method for priming a hard metal surface (12), in particular bare or coated steel, characterised in that it consists of applying, continuously and with a determined pressure on the hard metal surface (12), a woven...  
WO/1997/045219A1
A powder metal gear wheel having a core density of at least 7.3 g/cc, and in one embodiment 7.4 to 7.6 g/cc and a hardened carburized surface. A method of manufacturing transmission gears comprises, sintering a powder metal blank to prod...  
WO/1997/041982A1
The invention relates to a process for ring rolling the teeth of bevel gears, preferably hypoid-toothed bevel gears, in a closed die, in which use is made of a pretreated blank of which the outline outside the shaping region of the profi...  
WO/1997/038821A1
A working machine such as a machine tool, a spinning machine, a press machine, etc., for executing cutting, plastic machining, etc. The machining efficiency and machining accuracy are improved by inclining a driving portion or shaft memb...  
WO/1997/036702A1
The present invention relates to a method for forming weakenings in a metal plate (8), comprising of: deforming the metal plate to a predetermined depth to form a weakening thinned portion along at least one line; and bending the metal p...  
WO/1997/027962A1
A thread rolling attachment includes a pair of opposed pivoting arms (4) each having a threading roll (2) attached to one end thereof. A wedge (12) is located between the other ends of the arms (4), and is linearly movable for controllin...  
WO/1997/023313A1
The invention relates to the machining of metals under pressure. The proposed mill comprises a base mount (1), a rolling stand (2) mounted on the base mount and provided with means (22) for the resilient unidirectional transformation of ...  
WO/1997/023314A1
A transfer device (54) for transferring fasteners (92) from a supply track to a deforming die at evenly spaced intervals. The transfer device includes an index wheel (58) mounted for rotation about a wheel axis (70) in a direction opposi...  
WO/1997/012710A1
The object of the invention is to improve a method of producing large annular workpieces, in particular annular bands for wear-resistant pressure rollers, by means of a hot-isostatic pressing process such that even larger annular workpie...  
WO/1997/012727A1
A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled...  
WO/1997/011796A1
A deformed bar having knots and four ribs on its surface is produced by performing the final finish rolling by means of a two-roll rolling mill. Rolls R1, R2 of the two-roll rolling mill have a peripheral groove (3), knot grooves (2) and...  
WO/1997/009136A1
The present invention relates to a method for manufacturing a formed piece of aluminium or some other relatively soft metal. In accordance with the invention, a slice is cut from a rod of aluminium or some other raw-cast metal; the slice...  
WO/1997/009135A1
The invention concerns a method of producing pressure-rolled pipes (3) with a pressure mandrel (1) and one or a plurality of pressure rollers (2), the pipe (3) being disposed between the pressure mandrel (1) and the pressure rollers (2) ...  
WO/1997/007330A1
Method and device for producing an abrasion resistant ring for a piston for an engine for forming a cooling path in a ring groove and adjacent to the ring groove by being cast in the vicinity of a head portion of a piston for an engine. ...  
WO/1997/005976A1
A screw rolling method comprising the steps of arranging a plurality of rolling taps in parallel with one another and at predetermined intervals in the direction of the circumference of the same circle, retaining these rolling taps toget...  
WO/1996/038241A1
The invention concerns a process for manufacturing annular work pieces from metal with a profiled cross-section, preferably with external helical gearing, and a rolling facility for carrying out the method. It is proposed that a) forming...  
WO/1996/033030A1
The invention is related to a process and apparatus for the manufacture of a cooking vessel, such as a frying pan (12) or a kettle from a metal blank. According to the invention, the vessel is manufactured by roll forming techniques by u...  
WO/1996/025257A1
A method of forming vehicle wheel rims which includes the single pass spinforming of the rim blank prior to forming the rim profile. The spinforming operation stretches and elongates the blank to form a blank of non-uniform thickness pri...  
WO/1996/022845A1
In the present method of producing a metal hollow body (1) having a cylindrical casing which is provided on the exterior with at least one predetermined breaking line (32, 51), the casing is formed by a drawing process and the predetermi...  
WO/1996/022848A1
A method of producing a poly-V groove pulley by sheet metal working. A ring-like peripheral wall, which is a thickened periphery of a substrate portion is clamped, and the ring-like peripheral wall is elongated so as to form a drum wall ...  
WO/1996/022847A1
The annular peripheral wall of a metal sheet is thickened two times or more the wall thickness of the sheet, and teeth for a belt with timing teeth or a gear are formed on the annular peripheral wall thus thickened. The method comprises ...  
WO/1996/022169A1
Machine and method for deep rolling fillets of split-pins of engine crankshafts. Each split-pin comprises neighboring and arcuately offset crank pins (24, 26) connected between counter weigths and has a centralized splitter fence (32) wh...  
WO/1996/020050A1
The invention concerns a flow-turning process for manufacturing internally geared parts, with a press mandrel (10) comprising a mandrel (1) on which is fitted a forming tool (2) and one or more pressure rollers (3). A workpiece (4) is he...  
WO/1996/012589A1
A machining apparatus (20) for deep fillet rolling the undercut radii of a crankshaft (22) includes an adjustable support means or workholder (24) and a rolling tool assembly (26).  
WO/1996/007504A1
The invention relates to a process for producing a multi-blade tool of high-tensile tool steel and the tool produced thereby. The invention comprises the steps: a section with a cross section corresponding to that of the multi-blade tool...  
WO/1996/007015A1
The invention relates to a rock bolt (1) and method of installing a rock bolt, particularly a hollow bolt. The method of installation utilises a chemical anchor, the components of which are provided in a cartridge (4) which is either inj...  
WO/1996/001160A1
The invention concerns a method of manufacturing an externally toothed gear element, the method calling for the external toothing to be formed on a cylindrical body by inserting a workpiece (3) in a tool in a rotating tool-holding fixtur...  
WO/1995/034387A1
The invention concerns a method for the production of a seamless hot-finished tube from steel with reduced deformability, in particular roller-bearing steel, the method calling for a pretreated and degassed as well as deoxidized liquid s...  
WO/1995/029777A1
The invention relates to a process for the continous, chipless separation of individual identical rings (4) from tubular workpieces (1) by means of cutting rollers (2). In order to produce rings (4), preferably of roller bearing steel, w...  

Matches 651 - 700 out of 6,657