shot peening


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shot peening

[′shät ‚pēn·iŋ]
(metallurgy)
Shot blasting with small steel balls driven by a blast of air.
References in periodicals archive ?
An extended height custom RSSA-6 has been completed for precision shot peening critical helicopter main gear box rotor shafts.
For a French car manufacturer, Rosier took a new approach by developing a shot peening system, which accelerates and throws the blast media with turbines.
Straaltechniek, a shot peening and high-end blasting technology leader, headquartered in Oosterhout, The Netherlands, is now distributed by DAES to the aerospace industry in North America and the Middle East regions, where DAES Group has strong established relationships.
The GNS subsurface layer can be formed through surface strengthening treatments by means of mechanical methods such as shot peening (SP), which entails impacting a surface with small, round, and hard particles with force sufficiently high to create localized plastic deformation for the formation of a deep work-hardened and compressed subsurface layer in metals and alloys [3,4].
Surface modification includes surface deposition, physical vapor deposition (PVD) and chemical vapor deposition (CVD) [9,10], laser surface treatment [11,12], and shot peening (SP) [13-16], which is an effective way to improve the surface properties of materials.
We specialize in a technology called shot peening to enhance the durability of the parts and components of automobiles and aircraft.
Shot peening has been in use for decades; most often to increase the fatigue life of parts, making them last longer without adding extra material.
Among the new controlled processes are steel and glass shot peening, ultrasonic cleaning and tensile testing to national standards such as AMS (Aerospace Materials Specifications).
processes, Variance in material lots, Effects of surface finish, heat treating, shot peening, and other geometric factors, Effects of corrosive or high-temperature environments, Compliance with quality, safety, and cost effectiveness requirements.
Among the topics are measuring residual stresses in surface treated stainless steel groove welds, evaluating arc evaporated coatings on rounded surfaces and sharp edged, residual stresses in dissimilar weld joints, the experimental analysis of shot peening on carburized for carbonitrided parts, measuring stress in aluminum using a Gobel mirror as the primary beam optics for an X-ray diffractometer, the thermal fatigue study of hardfaced hot forging tools using numerical analysis and residual stress evaluation, and investigating residual stress distribution in wheel rims using neutron diffraction.
Here, the martensites less than 10% were produced by shot peening at room temperature.
In airplane wings and other structures, techniques such as shot peening and laser shocking are used, but drawbacks include high cost, cold working time, and component damage.