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6655026 |
Production process for connecting rod for internal combustion engine
Material for a connecting rod for an internal combustion engine is carburized and quenched, a carburized layer formed on the bearing portion is ground until the portion which exhibits the maximum...
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6458220 |
Case hardened steel blades for sports equipment and method of manufacture
Steel alloys susceptible to case and core hardening comprise 0.05 to 0.24 weight percent carbon; 15 to 28 weight percent cobalt and 1.5 to 9.5 weight percent in nickel, small percentages of one or...
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6302971 |
Process for making moveable pulley half
A pulley useable with a driving belt in a continuously variable transmission, including a moveable pulley half having an integral cylinder portion integrally formed therewith by plastic working....
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6294029 |
Method of treating and smoothing sliding surface
A surface treating and smoothing method of surface-treating and smoothing a sliding member including steps of finishing the sliding member by pressurized particle containing fluid blasting to a...
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6197125 |
Modification of diffusion coating grain structure by nitriding
A method for improving the corrosion resistance, increasing the hardness, providing superior ductility, and reducing surface-cracking of a diffusion coating by nitriding and heating-treating the...
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5916383 |
Method of shot peening a hardened metal product with shot having high hardness
A method for shot peening a hard metal product that has a hardened surface. The method includes projecting shot on the hardened surface of the hard metal product. The ratio of the Vickers hardness...
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5868871 |
Method and apparatus for carburizing, quenching and tempering
Method and apparatus for carburizing, quenching and tempering workpieces, by which the step of carburizing can be incorporated into a machining and manufacturing process to be performed by an...
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5690756 |
Method for producing cast iron gear
A method for producing cast iron gears includes the steps of heating a blank composed of cast iron and having a teeth forming part to such a temperature that at least the teeth forming part is at...
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5595613 |
Steel for gear, gear superior in strength of tooth surface and method for producing same
A steel for gears consists essentially of 0.10-0.30 wt % of C, not more than 1.0 wt % of Si, not more than 1.0 wt % of Mn, 1.50-5.0 wt % of Cr, and balance including iron and impurity. A gear made...
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5556484 |
Method for reducing abnormal grain growth in Ni-base superalloys
A method of forging Ni-base superalloys is described which avoids the growth of abnormally large grains in the surface region of a forged article. The method involves forging and/or annealing a...
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5100483 |
Method of case hardening ferrometallic parts
A method of case hardening ferrometallic parts that avoids the use of protective coatings or shields is provided. The process comprises the steps of a) carburizing the entire part, b) machining the...
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5085713 |
Method of forming a partially carburized starter output shaft
A rotary output shaft for a vehicle starter motor having a planet gear speed reducing device is formed by forging a steel blank to form a product having a shape similar to the rotary output shaft...
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4622080 |
Gun barrel, mandrel and related processes
A gun barrel which is either smooth or has lands and grooves wherein the grooves are both wider and deeper at the chamber than at the muzzle. A mandrel for producing the gun barrel. Processes for...
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4403639 |
Stud arrangement on chains for motor vehicles, and a method of producing such chains
A stud arrangement on casehardened studded chains for motor vehicles, wherein the studs consist of a steel body which is permanently welded to a chain link and provided with a centrally disposed...
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4373973 |
Method of manufacture of high performance gears
A method for forming gear teeth of a high performance gear is accomplished by shaping the carburized gear tooth surface while the gear blank is held at a uniform temperature in the metastable...
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4123294 |
Method of separating ferritic steel or ductile iron from certain nonferrous metals
A method is disclosed for treating scrap metal chips and turnings containing a valuable metal layer of silver, gold, or copper and a ductile layer of ferritic steel or ductile iron to recover the...
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4052233 |
Method for gas-and fluid-tight sealing of boreholes which are threadless and under pressure, and are mounted in a hardenable raw material
A method of sealing non-threaded boreholes with a preferably spherical sealing member comprising pressing the sealing member into the borehole in an unhardened raw material hardenable by...
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3837931 |
COMPOSITE IRON-BASE METAL PRODUCT
A composite iron-base metal product comprising an iron-base metal in which a martensitic structure having a high mechanical strength is formed in a particular portion of the base metal in such a...
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3661656 |
CASE-HARDENED STEEL PRODUCT AND PROCESS FOR ITS MANUFACTURE
The product comprises a tough core and at least one hard, carburized surface layer, the core containing 0.01-0.04% C, 2.2-6.0% Mn, 0.5-2.0% Si, up to 0.2% acid-soluble Al, 0.01-0.5% Nb and/or V,...
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3654692 |
METHOD OF MAKING FRICTION DISC VARIATORS
A method for treating surfaces of contact for a friction element operating in a liquid medium. The method comprises sand blasting the surface so as to form unevenness, thereafter nitriding the...
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3344817 |
Method of selectively hardening a corrosion resistant part and the article produced thereby
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3231433 |
Manufacture of metal band saws and the like
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3003370 |
Method of making rock bit cutter
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2804412 |
Carburization of metal articles
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