Patent
Method for improving the release and finish characteristics of metal stamping dies
TLDR
A method for improving the release and finish characteristics of metal stamping dies includes shot peening the interior die cavity walls with substantially spherical shot having a hardness value at least equal to the hardness value of the die cavity wall.Abstract:
A method for improving the release and finish characteristics of metal stamping dies includes shot peening the interior die cavity walls with substantially spherical shot having a hardness value at least equal to the hardness value of the die cavity walls Optimizing the parameters of the peening process, such as the Almen intensity and the shot type, size, hardness and uniformity, maximizes the improvement to the release and finish characteristics of the die Optionally, the initial shot peening is followed by a second shot peening with substantially spherical glass beads Metal stamping dies shot peened in accordance with the present method exhibit substantial improvement in their release and finish characteristics over unpeened diesread more
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Stamping tool, casting mold and methods for structuring a surface of a work piece
TL;DR: In this article, a simple, cost-effective stamping or molding in the nanometer range is enabled using a stamping surface or a molding face with a surface layer having hollow chambers that have been formed by anodic oxidation.
Patent
Method of surface finishing orthopedic implant devices
TL;DR: In this article, a surface treatment process for stainless steel orthopedic implant devices and an Orthopedic Implant device surface treated in accordance with the disclosed process are disclosed, where a rough ground or machined stainless steel part is shot blasted with stainless steel shot.
Patent
Method of preventing abrasion at sliding portion of metal-product
TL;DR: By shot-peening, shots having almost spherical shape are impacted against a surface of a portion of a metal-product, the portion being one which is to be subjected to sliding action as mentioned in this paper.
Patent
Game ball mold preparation technique and coating system
TL;DR: In this article, a dual region coating system for a game ball mold and a coating application method was described, which is particularly useful for making golf ball cores containing zinc-diacrylate and/or zinc dimethacrylate, as these materials tend to adhere to the walls of a mold cavity.
Patent
Press plate having textured surface formed by simultaneous shot peening
TL;DR: In this paper, shot peening with a mixture of at least two sizes of shot can be used to obtain a textured finish press plate with desirable gloss features, where the press plate is impacted with a mix of shot having at least 2 different sizes to simultaneously obtain a texture and gloss control.
References
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Patent
Method of reducing fuel consumption by peening
TL;DR: In this article, a method of reducing fuel and oil consumption in an internal combustion engine is proposed, in which the cylinder walls of the engine are peened with glass spheres having a diameter within the range of form about 0.002 inches to about 1.004 inches.
Patent
Process of compression stressing metals to increase the fatigue strength thereof
TL;DR: In this paper, a process of compression stressing metals to increase the fatigue strength or resistance to brittle fractures thereof by shot peening or surface rolling is described, where the elastic radial tensile stress of the metal is maintained at a safe low value at the time when subsurface yield incident to initial compression stressing occurs.
Patent
Metal article having antifriction surface
TL;DR: In this article, a metal article, having a surface which is of chromium, was shown to be covered with a multiplicity of depressions and prominences of a size sufficient to be visible to the naked eye.