Class 148/643 - With working

Subclass of Class 148 - Metal treatment
Definition: Process which involves metal deforming.
No. of patents: 23
Last issue date: 10/07/2008

Number	Title	Issue Date
7431781	Method for forming a common-rail injection system for diesel engine A common-rail injection system is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can b...	10/07/2008
7247099	Screw with a partially hardened functional tip and process for the production thereof In a process for the production of a screw comprising a low-alloy carbon steel, having a head, an adjoining holding portion and a functional tip which, in the outer region of limited radial depth, is of a greater hardness than the holding portion, in which the screw...	07/24/2007
7115177	Method for the treatment of metallic materials In a method for the treatment of metallic materials especially for the consolidation of the texture of the materials, a blank of the metallic material is heated to a transformation temperature and the blank is then subjected to twisting preferably while, at the same...	10/03/2006
6918224	Heat treatment strategically strengthened door beam A method of forming a vehicle component, particularly an elongated impact beam, having an open section structure, in a manner to provide predetermined strategically strengthened portions, comprising the steps of cold forming unhardened steel into a workpiece having ...	07/19/2005
6576068	Method of producing stainless steels having improved corrosion resistance A method for producing a stainless steel with improved corrosion resistance includes homogenizing at least a portion of an article of a stainless steel including chromium, nickel, and molybdenum and having a PREN of at least 50, as calculated b...	06/10/2003
6454884	Method of manufacturing a vehicle structural beam A vehicle structural beam, such as a door intrusion beam, which possesses an elongate tubular beam part which at opposite ends is provided with mounting flanges for securement to a vehicle frame. The elongate tubular beam part and the flanges provided at ...	09/24/2002
6221185	Method for manufacturing components by critical formation of light metal strip The invention relates to a method for manufacturing components from critical cold forming of light metal strip, preferably naturally hard Al alloys of the AlMg or AlMg--Mn types, in which the desired component is manufactured from the strip by at least on...	04/24/2001
6171416	Method of producing can steel strip At least both ends of a sheet bar in the length direction, which is obtained by roughly rolling a steel slab including 0.1 wt % or less of C, 0.5 wt % or less of Si, 1.0 wt % or less of Mn, 0.1 wt % or less of P, 0.05 wt % or less of S, 0.20 wt % or less ...	01/09/2001
6042952	Extremely-thin steel sheets and method of producing the same A steel slab is rough-rolled into a sheet bar and butt-joined onto a preceding sheet bar and a widthwise end portion of the sheet bar is heated by means of an edge heater and then subjected to a continuous finish rolling through pair-cross rolls rolling o...	03/28/2000
5972134	Manufacture of a metallic molded structural part The invention is directed to a process for the manufacture of a metallic molded structural part (1) for motor vehicle components such as door impact girders or bumpers with areas (2) with a higher ductility in relation to the rest of the structural compon...	10/26/1999
5916389	Method of producing a sheet steel product such as a reinforcement element in a larger structure A product of sheet steel is formed in a pair of cooled tools when hot and is then hardened to a martensitic structure while still in the tools. In this manner, the tools function as a fixture while the steel is hardening. The steel is kept mild in the are...	06/29/1999
5911844	Method for forming a metallic material A method for drawing a portion of metallic material having a known hardness. The method includes the step of applying a localized heat treatment to predetermined portions of the metallic material. Additionally, the method comprises forming the localized h...	06/15/1999
5833777	Base plate for suspension assembly in a hard disk drive with a hardened flange and soft hub A base plate for a suspension assembly in a hard disk drive wherein the base plate has a hardened flange and soft hub. The base plate is stamped in a progressive die in a sequence of forging and coining operations. The base plate is subsequently fully ann...	11/10/1998
5738739	Method for producing low carbon equivalent rolled steel shapes by controlled rolling A method for producing a steel section by a rolling process including a rough rolling step, an intermediate rolling step and a finishing rolling step. The intermediate rolling step comprises water-cooling the flange portion of the rough-rolled steel secti...	04/14/1998
5458704	Process for the production of thick armour plates The invention relates to a process for the production of very hard armour plates from steel slabs, wherein the slabs are hot rolled to a final thickness above 50 mm and then hardened and possibly tempered. The characterizing feature of the invention is th...	10/17/1995
5191778	Process for producing thin-webbed H-beam steel A thin-webbed H-beam steel having a web thinner that flanges is produced by forcibly water cooling the outer surface of the flanges during an intermediate hot rolling prior to a final hot rolling by cooling to less than 700° C., interrupting the cooling ...	03/09/1993
4745786	Hot rolling method and apparatus for hot rolling A hot rolling method, wherein portions of a hot-rolled steel material having suffered a temperature fall below Ar3 transformation temperature thereof during hot rolling are subjected to an intermediate heating to have a temperature not less tha...	05/24/1988
4744836	Method for selectively heating a workpiece subjected to low temperature thermomechanical processing Process and apparatus are provided for selective heating a portion of a workpiece to achieve improved ausforming and isoforming processes when the workpiece is plastically deformed by mechanical working above the Ms temperature. The process and...	05/17/1988
4737202	Method of producing steel components that simultaneously have high strength and high ductility and which retain these properties even after a hot forming operation A steel with a carbon content of less than 0.3 percent by weight is used for steel-based components which are subjected to hot forming. A predominantly lower bainite structure is achieved by controlled cooling. The advantage is that components, such as tr...	04/12/1988
4561908	Method of making forged steel articles, especially for vehicle parts Vehicle suspension parts especially parts which may be subjected to temperatures as low as -50° C. are made by forging them from a steel of the following composition: 0.35 to 0.45% by weight carbon, less than 0.5% by weight silicon, 0.6 to 0.9% by weight...	12/31/1985
4305272	Agricultural discs Agricultural discs are given a hardened annular run by providing a differential heat treatment. During the heat treatment step an annular ring of heat conductive material is placed on the outer periphery of the disc. Thus ensures that the outer edge is of...	12/15/1981
4042422	Method for forming bearing unit A method of forming a rotary element for a wheel comprising a brake device provided for example with a brake disc and a bearing having an outer and an inner ring between which rolling elements in two rows are arranged, the rings being provided with a flan...	08/16/1977
4010969	Impact resistant lightweight, low cost automobile bumpers and method of making same Automobile bumpers formed from rolled sheet steel and each having a cross-sectional profile designed to carry impact loads without additional reinforcements, and which are selectively hardened to withstand impact of a high order of magnitude without damag...	03/08/1977

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Class 148/643 - With working