U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 148/667 - With working


Subclass of Class 148 - Metal treatment
Definition: Process wherein there is a step of metal deforming.
No. of patents: 29
Last issue date: 03/27/2012


NumberTitleIssue Date
8142578Process for manufacturing hot-forged parts made of a magnesium alloy
A process for manufacturing a process for manufacturing a part made of a magnesium alloy is disclosed. The process includes a step of forging a block of the alloy followed by a heat treatment. The alloy is a casting alloy based on 85% magnesium, and containing, by w...
03/27/2012
8062439Magnesium alloy plate and method for production thereof
A magnesium alloy sheet having an adequate strength and an excellent bendability is provided along with a method of manufacturing such an alloy sheet. The method comprises, rolling a magnesium alloy sheet through a reduction roll, the alloy thereof containing about ...
11/22/2011
7967928Methods of extruding magnesium alloys
Methods of extruding magnesium-based casting alloys are provided. The magnesium alloys have relatively high strength and castibility, as well as an improved ductility and extrudability for wrought alloy applications. The magnesium-based wrought alloy comprises alumi...
06/28/2011
7879165Method for producing magnesium alloy plate and magnesium alloy plate
The present invention provides a method for producing a magnesium alloy sheet capable of producing a magnesium alloy sheet having excellent plastic workability such as press workability. The method of the present invention includes rolling a magnesium alloy blank wi...
02/01/2011
7228629Method of spin forming an automotive wheel rim
The present invention is directed to a method of manufacturing a three piece aluminum wheel assembly comprising the steps of providing a pair of circular blanks made of a heat treatable alloy to be formed into preforms of a general shape. The preforms are subjected ...
06/12/2007
7083689Method for fabricating magnesium alloy billets for a thixoforming process
A method for fabricating a magnesium alloy billet for a thixoforming process capable of enhancing the mechanical properties of a forming product by inducing plastic deformation of an AZ91D magnesium alloy included extrusion and compression and forming a fine recryst...
08/01/2006
7048812Creep resistant magnesium alloy
A magnesium based alloy consists of, by weight: 1.4–1.9% neodymium, 0.8–1.2% rare earth element(s) other than neodymium, 0.4–0.7% zinc, 0.3–1% zirconium, 0–0.3% manganese, and 0–0.1% oxidation inhibiting element(s) the remainder being magnesium except fo...
05/23/2006
6893515Manufacturing process for highly ductile magnesium alloy
The present invention is related to a manufacturing process for highly ductile magnesium alloy, which is processable under plasticization at ambient temperature. The process includes melting in vacuum melt furnace or inert gas protected furnace, teeming into ingot, ...
05/17/2005
6818080Method for manufacturing shaped light metal article
A manufacturing method for a shaped light metal article includes the steps of forming a plastic worked article by plastic working an article for plastic working made of light metal material, and subjecting the plastic worked article to a post-plastic working heat tr...
11/16/2004
6544357Selected processing for non-equilibrium light alloys and products
A new class of light or reactive elements and monophase ଱'-matrix magnesium- and aluminum-based alloys with superior engineering properties, for the latter being based on a homogeneous solute distribution or a corrosion-resistant and metallic shiny ...
04/08/2003
6511560Thin, forged magnesium alloy casing and method for producing same
A thin, forged magnesium alloy casing is integrally constituted by a thin plate with projections on either or both surfaces, and the thin plate is as thin as about 1.5 mm or less. The thin forged casing can be produced by (a) carrying out a first forging ...
01/28/2003
6471797Quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability and method of making the same
Disclosed is a quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability, and making method thereof. The metallic alloy comprises a composition of Mg--1~10 at % Zn--0.1~3 at % Y, in which a two-phase region consisting of...
10/29/2002
6350328Metal injection molding
Feed material for use in producing a thixotropic alloy comprising pellets in the form of a solid cylinder having a length to diameter ratio in the range of from 1:1 to 2:1 and a maximum length of 0.250 inch....
02/26/2002
6306231Method of producing light metal alloy material for plastic working and plastic-worked product
A light metal alloy material has excellent plastic workability. The method of producing the light metal alloy material comprises a light metal as a matrix, which is injection-molded at a solid phase proportion of not more than 20%. The injection molded ma...
10/23/2001
6264762Corrosion resistant magnesium compositions and applications thereof
A magnesium alloy material includes magnesium; more than 1 wt. % manganese; and at least one sp-metal selected from the group consisting of zinc, cadmium, mercury, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, and bismuth, wherein th...
07/24/2001
5964965Nanocrystalline Mg or Be-based materials and use thereof for the transportation and storage of hydrogen
Disclosed is a very light-weight, Mg and Be-based material which has the ability to reversibly store hydrogen with very good kinetics. This material is of the formula (M1-x Ax) Dy wherein M is Mg, Be or a combination of th...
10/12/1999
5951794Method of forming a drive shaft
Methods for making an aluminum drive shaft for automobiles or trucks or other drive shaft applications from aluminum alloy tube and methods for making drive shafts. The method includes providing an aluminum tube member is joined to drive shaft end members...
09/14/1999
5902424Method of making an article of manufacture made of a magnesium alloy
An article of manufacture made of a magnesium alloy is made by casting the magnesium alloy to provide a billet, forging the billet to render material of the billet to have an average crystalline particle size of not greater than 100 μm; and carrying out ...
05/11/1999
5895518Synthesis of alloys with controlled phase structure
A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a hig...
04/20/1999
5800640Method of producing a light alloy product
This invention relates to a method for producing a magnesium light alloy product. In order to enhance formability in plastically forming a magnesium alloy material and obtain high tensile strength and high proof stress in the final product, the magnesium ...
09/01/1998
5693158Magnesium light alloy product and method of producing the same
A method for producing a magnesium light alloy product. In order to enhance formability in plastically forming a magnesium alloy material and obtain high tensile strength and high proof stress in the final product, the magnesium alloy material is cast by ...
12/02/1997
5679182Semi-solid processing of beryllium-containing alloys of magnesium
Disclosed is a practical magnesium based alloy containing 1 to 99 weight % beryllium and an improved method of semi-solid processing of magnesium alloys containing beryllium. The present method avoids agitation of molten alloys and the need for introducin...
10/21/1997
5501748Procedure for the production of thixotropic magnesium alloys
Procedure for the production of a thixotropic magnesium alloy by adding a grain refiner combined with controlled, rapid solidification with subsequent heating to the two-phase area. It is preferable to use a solidification rate of >1° C./s, more preferab...
03/26/1996
5462634Surface-treated aluminum material and method for its surface treatment
An aluminum material is surface-treated with an aqueous solution containing 0.005 mol/lit. or more of a chelating agent and 5 g/lit. or more of an organic amine and having 100 ppm or less of phosphoric acid radical ion concentration and 500 ppm or less of...
10/31/1995
5409555Method of manufacturing a forged magnesium alloy
An article of manufacture made of a magnesium alloy is made by casting the magnesium alloy to provide a casting, forging the casting to render material of the casting to have an average crystalline particle size of not greater than 100 μm, and carrying o...
04/25/1995
5296059Process for producing amorphous alloy material
A process for producing an amorphous alloy material characterized by imparting ductility to an amorphous alloy having a supercooled liquid region by giving a prescribed amount of strain at a prescribed strain rate to the alloy in the glass transition temp...
03/22/1994
5078806Method for superplastic forming of rapidly solidified magnesium base metal alloys
A complex part composed of rapidly solidified magnesium base metal alloy is produced by superplastic forming at a temperature ranging from 160° C. to 275° C. and at a rate ranging from 0.00021 m/sec to 0.00001 mm/sec, to improve the formability thereof ...
01/07/1992
5073207Process for obtaining magnesium alloys by spray deposition
Process for economically obtaining a magnesium alloy having improved mechanical characteristics and in particular a breaking strength of at least 290 MPa and an elongation at break of at least 5%, by spraying and deposition in solid form to provide an ing...
12/17/1991
 
Sign InRegister
Username  
Password   
forgot password?