There are more [K.sub.res] calculations published [9-11] than peening residual stress intensity factors calculations [12,13], where the concept of cohesive zone model is used with the finite element method to estimate compressive stress relaxation in shot peened
"CASE combines vibratory finishing with a chemical accelerant to smooth the surface of the peened
part," Welsch said.
marking head movement is controlled by an X-Y axis slide arrangement that is driven through precise linear ballscrews that are bellows protected.
Virtually any component can be peened
, but it's particularly beneficial for parts such as torsion bars, connecting rods, and gearbox components; dependant on the application, the peening process can increase component life by millions of cycles.
In addition, the system would have to peen
interior holes as small as 5/16" and exterior slots on various parts up to 30" dia.
markers cost considerably less than laser markers: typically $8,000 -- $20,000.
It is the modem-day technological equivalent of the use of a 'ball peen
' hammer to increase the strength of armour and swords, favoured by medieval blacksmiths.
The equipment allows landing gear components to remain static whilst receiving 3602 shot peen
coverage from the blast nozzles.
The balustrades were designed, manufactured and fitted by structural metalwork specialists, D&B Darke Limited, but as the architects had specified that the stainless steel handrails and posts have a satin finish, managing director Tony Darke knew that this could be only be achieved by specialised peen
finishing after manufacture.