Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811)
01/1998
01/29/1998WO1998003686A1 Semi-solid forming
01/28/1998EP0788419A4 Method and apparatus for making crankshafts
01/27/1998US5711187 Gear wheels rolled from powder metal blanks and method of manufacture
01/08/1998WO1998000626A1 Method for expanding a steel tubing and well with such a tubing
01/08/1998WO1998000569A1 Steel having excellent outer surface scc resistance for pipeline
01/07/1998EP0816521A2 Forged roll for rolling a seamless steel pipe, and roll manufacturing method
01/07/1998EP0816042A1 A process for manufacturing alloy castings
01/06/1998US5704998 Hot rolling steels for high tensile strength
01/06/1998CA2121047C Heat treatment of metal castings and in-furnace sand reclamation
12/1997
12/30/1997US5702539 Method for producing silicon-chromium grain orieted electrical steel
12/24/1997CN1168700A Ultra-high strength secondary hardening steels with excellent toughness and weldability and method thereof
12/18/1997WO1997047418A1 Powder metallurgical body with compacted surface
12/09/1997US5695666 Method of welding neutron irradiated metallic material
12/04/1997WO1997045228A1 Track section and method of joining part tracks
12/02/1997US5693402 Brake pad which has been pre-burnished using a high intensity heat source
11/1997
11/13/1997WO1997042351A1 Making metal powder articles by sintering, spheroidizing and warm forming
11/13/1997CA2252745A1 Making metal powder articles by sintering, spheroidizing and warm forming
11/06/1997WO1997041267A1 Adhesive tape covered laser shock peening
11/06/1997WO1997041266A1 Dry tape covered laser shock peening
10/1997
10/29/1997EP0803582A2 Method of stress inducing transformation of austenite stainless steel and method of producing composite magnetic members
10/29/1997EP0803315A1 Ductile iron vehicle hub and method for producing same
10/16/1997WO1997037788A1 Method of manufacturing a component
10/16/1997DE19708352A1 Nitrogen-containing stainless steel rope wire
10/14/1997US5675892 Laser shock peening for gas turbine engine vane repair
10/09/1997DE19621019C1 Railway track section
10/07/1997US5674329 Adhesive tape covered laser shock peening
10/07/1997US5674328 Dry tape covered laser shock peening
10/07/1997CA2018355C Microalloyed steel and joint bar
09/1997
09/30/1997US5671628 Laser shock peened dies
09/24/1997EP0796352A1 Ultra-high strength steels and method thereof
09/24/1997CN1160378A Stainless steel wire for reinforcing upper part of tire casings
09/16/1997US5666841 Method for work-hardening by rolling a component
09/09/1997US5665455 Low-iron-loss grain-oriented electromagnetic steel sheet and method of producing the same
09/09/1997US5665179 Process for producing a coil spring
09/09/1997US5664648 Prestressed brake drum or rotor
09/03/1997EP0792379A1 Dual-phase steel and method thereof
08/1997
08/28/1997DE19601858C1 Determining the deformation strength of a steel
08/26/1997US5660648 Cooling in air; aging
08/13/1997EP0789085A1 Method for mechanical treatment of elongated amagnetic austenitic steel workpieces, especially of drill collars for oil drilling
08/13/1997EP0788419A1 Method and apparatus for making crankshafts
08/09/1997CA2196029A1 Steel for manufacturing forged parts and manufacturing process for a forged part
08/06/1997EP0787812A1 Steel for the manufacture of forgings and process for manufacturing said forgings
08/05/1997US5653826 High strength dual phase steel plate with superior toughness and weldability
07/1997
07/30/1997EP0785876A1 Stainless steel wire for reinforcing the upper part of tire casings
07/15/1997US5647922 Process for manufacturing high manganese hot rolled steel sheet without any crack
07/10/1997WO1997024198A1 Apparatus and method for work hardening an endless belt for use in a belt caster
06/1997
06/24/1997US5640868 Apparatus and method for work hardening an endless belt for use in a belt caster
06/11/1997EP0777752A1 Warm forming high-strength steel structural members
06/11/1997CN1151446A Pump head inner wall strengthening process for plunger pump
05/1997
05/30/1997CA2164021A1 Surface treatment of stainless steel
04/1997
04/23/1997EP0769073A1 Cold formed high-strength steel structural members
03/1997
03/25/1997US5613395 Coldworking tool automation
03/18/1997US5611250 Rolling/sliding part
03/12/1997EP0761378A1 Method and apparatus for bonding crossing rails
03/05/1997EP0516857B1 High-strength ultrafine steel wire with excellent workability in stranding, and process
03/04/1997US5607480 Surgically implantable prosthetic devices
02/1997
02/19/1997EP0758406A1 A technique to prevent or divert cracks
02/19/1997CN1143393A Dual phase steel plate having good toughness and welding property
02/18/1997US5603576 Method for manufacturing balls for bearing and products thereby
02/11/1997US5601667 Hot forging, cooling, aging
01/1997
01/30/1997WO1997002925A1 Gear shot peening method and gear
01/28/1997US5596896 Methods and apparatus for effecting domain refinement of electrical steels
01/14/1997US5592840 Method of preventing abrasion at sliding portion of metal-product
01/07/1997US5590559 Method and apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls
01/02/1997EP0750534A1 Deep rolling split-pin fillets of crankshafts
12/1996
12/27/1996EP0749499A1 Surface treatment of shape memory alloys
12/19/1996WO1996002676A3 Cold formed high-strength steel structural members
12/18/1996EP0748875A1 Method for producing tubes by the U-O-E process
12/17/1996US5584662 Laser shock peening for gas turbine engine vane repair
12/05/1996WO1996038597A1 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles
12/05/1996CA2222504A1 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles
11/1996
11/20/1996EP0742841A1 Method of making dual phase steel plate
11/19/1996US5575167 Deep rolling split-pin fillets of crankshafts
11/06/1996CN1134857A method for mfg. high gloss stainless steel band
11/05/1996US5571348 Method and apparatus for improving alloy property and product produced thereby
10/1996
10/29/1996US5569018 Technique to prevent or divert cracks
10/02/1996DE19511882A1 Strengthening of workpiece surfaces by producing residual compressive stresses via rolling process
09/1996
09/19/1996DE19502893C1 Surface-finishing of corrosion resistant metal (alloy) objects
09/12/1996WO1996027684A1 A technique to prevent or divert cracks
09/11/1996EP0731181A1 Method of preventing abrasion at sliding portion of metal-product
09/10/1996US5554233 Cold deformable, high strength, hot rolled bar and method for producing same
09/03/1996US5553106 Residual stress improving method for members in reactor pressure vessel
08/1996
08/28/1996EP0728022A1 Surgically implantable prosthetic devices
08/27/1996US5549809 Method for hardening metallic elements
08/27/1996US5549768 Cold working followed by rapid recrystallization improves corrosion and fatigue resistance
08/13/1996US5545270 Thermomechanically controlling rolling process
08/13/1996US5545269 Heating, rolling, reheating and water cooling
08/13/1996US5545268 Surface treated metal member excellent in wear resistance and its manufacturing method
07/1996
07/31/1996CN1128051A Strain-induced transformation to ultrafine microstructure in steel
07/25/1996WO1996022169A1 Deep rolling split-pin fillets of crankshafts
07/23/1996US5538566 Warm forming high strength steel parts
07/09/1996US5534088 Method of optimizing the distribution of inherent stress in springs
07/09/1996US5534085 Low temperature forging process for Fe-Ni-Co low expansion alloys and product thereof
07/02/1996US5531842 Method of preparing a high strength dual phase steel plate with superior toughness and weldability (LAW219)
07/02/1996US5531570 Distortion control for laser shock peened gas turbine engine compressor blade edges
06/1996
06/26/1996CN1125258A Method for adjusting tensile strength of a tin plated wire
06/18/1996US5526664 Method of forming a textured pattern on a metal plate which pattern is transformed to a plastic part, and a press plate and plastic part produced thereby
06/13/1996WO1996017966A1 Dual-phase steel and method thereof
06/13/1996WO1996017965A1 Method of making dual phase steel plate
06/13/1996WO1996017964A1 Ultra-high strength steels and method thereof
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