Patents
Sitemap › C21 - Metallurgy of iron › C21D - Modifying the physical structure of ferrous metals; General devices for heat treatment of ferrous or non-ferrous metals or alloys; Making metal malleable by decarburisation, tempering, or other treatments › C21D 7 - Modifying the physical properties of iron or steel by deformation
Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811)
12/1983
12/13/1983CA1158501A1 Method of reducing fuel consumption
11/1983
11/29/1983US4417459 Autofrettage process
11/15/1983US4415378 Carburized surface of untempered martensite and austenite
10/1983
10/25/1983US4411715 Stressing by heating web/edge to produce thermal gradient; high speed; simplification
10/04/1983US4407682 Determination of variations in metallography with heating or cooling
10/04/1983US4407486 Method and apparatus of hot working metal with induction reheating
09/1983
09/13/1983US4404041 Method of producing elongated large-size forged article
08/1983
08/24/1983EP0086344A2 Apparatus and method for prestressing a countersunk fastener hole
08/18/1983WO1983002783A1 Method of hot-forming metals prone to crack during rolling
08/17/1983EP0085806A1 Apparatus for cold working of metal rod
07/1983
07/05/1983CA1149200A1 Method of finishing welded joints by means of explosion
06/1983
06/29/1983EP0082519A2 Apparatus for processing welds of pipes
06/28/1983CA1148796A1 Method and apparatus for expanding spiralweld pipe
06/08/1983EP0080833A1 Steel reinforcement rod and process for producing this rod
06/08/1983EP0080832A1 Apparatus for cold working of metal rod
06/07/1983CA1147580A1 Nonmagnetic steels having low thermal expansion coefficients and high yield points and method of manufacturing the same
05/1983
05/11/1983EP0078694A2 Method of producing elongate large-size forged article
05/03/1983US4381673 Vibrational stress relief
04/1983
04/05/1983CA1143916A1 Method for making fasteners
04/05/1983CA1143915A1 Method for making fasteners
03/1983
03/30/1983EP0075322A2 Method for surface treating of a roll used for s skin pass of thin sheet
03/23/1983EP0074918A2 Method for simultaneous peening and smoothing
03/02/1983EP0072941A1 Method of and device for stud welding
03/01/1983US4375375 Constant energy rate forming
02/1983
02/15/1983US4373951 Ratio between carbon and manganese
02/09/1983EP0071195A2 Process for manufacturing hot extruded alloy products
12/1982
12/08/1982EP0066356A1 Process for the production of fine amorphous metallic wires
12/07/1982US4362578 Deformation
11/1982
11/09/1982US4358325 Method of treating low carbon steel for improved formability
10/1982
10/19/1982US4354371 Method of prestressing the working surfaces of pressure chambers or cylinders
10/13/1982EP0062317A1 Method of plastic working of metal materials
10/12/1982CA1133364A1 Method for providing strong wire
08/1982
08/03/1982US4342609 Explosion method of finishing welded joints
06/1982
06/08/1982CA1125149A1 Method and apparatus for producing threaded self-tapping stainless steel screws
03/1982
03/30/1982US4322481 Loss characteristics in amorphous magnetic alloys
03/02/1982US4317355 Forging of a camshaft
02/1982
02/17/1982EP0045815A1 Semi-finished steel article and method for producing same
10/1981
10/27/1981US4296512 Method for making fasteners
10/20/1981US4295351 Self-tapping stainless steel screw and method for producing same
10/06/1981US4292828 Apparatus for manufacturing cold-work hardened cylinders
09/1981
09/09/1981EP0035091A1 Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process
08/1981
08/04/1981US4281429 Method for making fasteners
05/1981
05/20/1981EP0028985A1 A method for making fasteners by drawing a cold wire or rod
05/20/1981EP0028984A1 A method for making fasteners by extruding a portion of a cooled slug
03/1981
03/24/1981US4258084 Method of reducing fuel consumption by peening
03/17/1981US4256516 Method of manufacturing non-magnetic Fe-Mn steels having low thermal expansion coefficients and high yield points
02/1981
02/24/1981CA1096150A1 Method and apparatus for the surface working and for reworking of workpieces
02/17/1981US4250610 Casting densification method
02/17/1981CA1095856A1 Method for providing strong wire
01/1981
01/06/1981CA1092794A1 Means of improving gear life
10/1980
10/29/1980EP0017695A1 Process for improving the strength of a wire
10/21/1980US4228671 Process for making a vehicle wheel
10/14/1980CA1087643A1 Torsion bar and method of forming the same
10/07/1980US4226111 Method and apparatus for the surface working and for reworking of workpieces
09/1980
09/30/1980CA1086468A1 Apparatus and method for cold working metal powder
09/16/1980US4222793 Bainite
08/1980
08/19/1980US4217769 Method of forming a coating application roll
08/19/1980CA1083858A1 Method of hot reducing ferrous and ferrous alloy products with composite martensitic nodular chill- cast iron rolls
08/06/1980EP0014158A1 Method for stress-relieving welded joints by explosive treatment
07/1980
07/29/1980US4214923 Method for treating metal
07/29/1980CA1082537A1 Forming process
06/1980
06/25/1980EP0012425A1 Method of treating an austenitic stainless steel wall and percussive apparatus to carry out this method
05/1980
05/27/1980US4204885 Method for providing strong wire
05/27/1980US4204884 Reduces surface defects and edge cracking
05/27/1980CA1078292A1 Method of producing ferritic stainless steel for coinage
02/1980
02/26/1980US4189932 Piston pin bore and method of finishing
02/19/1980US4188813 Method and machine for the manufacture of long concrete drills provided with helical splines over part of their length
02/12/1980US4188241 Method for producing high tensile strength, high ductility, low yield ratio hot rolled steel sheet
12/1979
12/25/1979US4180421 Torsion bar and method of forming the same
12/18/1979CA1068198A1 Method for making tubular members and product thereof
12/12/1979EP0006085A1 Process for the fabrication of anchoring rods or anchoring wires and their use in earth or rock anchor devices
11/1979
11/28/1979EP0005611A1 Method of treating ingot moulds
11/13/1979US4174233 Expansion process for reducing the stresses in a seamless metal tube
09/1979
09/18/1979US4168183 Process for improving the fatigue properties of structures or objects
09/18/1979US4167864 Means of improving gear life
08/1979
08/14/1979CA1060321A1 Method for providing strong wire and strip
08/08/1979EP0003367A1 A method for providing strong wire
07/1979
07/17/1979US4161415 Method for providing strong wire
05/1979
05/29/1979US4156360 Method and apparatus for unstressing pipe and the resulting pipe
04/1979
04/03/1979CA1051694A1 Air hardenable, formable steel
02/1979
02/13/1979CA1048306A1 High strength low alloy steel
12/1978
12/26/1978US4131491 Torsion bar and method of forming the same
11/1978
11/14/1978US4125416 Method for producing steel strip or steel sheet containing carbide and nitride forming elements
10/1978
10/10/1978US4119442 Process for manufacturing a steel product
07/1978
07/18/1978US4100782 Shot peening process
07/11/1978US4099992 Tubular products and methods of making the same
06/1978
06/27/1978US4096815 Forming process
05/1978
05/30/1978US4092180 Austenitic stainless steels
04/1978
04/25/1978US4086104 Method of preventing oxidation of austenitic stainless steel material in high temperature steam
04/25/1978US4085605 Method and apparatus for plastic deformation at high ambient pressure
04/11/1978US4083220 Sub-zero temperature plastic working process for metal
02/1978
02/28/1978US4075880 Machine for continuously cold working steel bar
01/1978
01/10/1978US4067240 Process of shot peening and cleaning and preparing shot pellets therefor
01/10/1978US4067215 Method for producing steel plate from a hot rolled steel coil
10/1977
10/11/1977US4053332 Enhancing magnetic properties of amorphous alloys by rolling
09/1977
09/13/1977US4047419 Method and apparatus for expanding spiralweld pipe
08/1977
08/16/1977US4042423 Method for providing strong wire and strip
08/16/1977US4041742 Apparatus and method for cold working metal powder
08/09/1977US4040688 Hot rolled sorbitic carbon steel wire
07/1977
07/12/1977US4034585 Process of compression stressing metals to increase the fatigue strength thereof
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