Before going into technical details that explain the effects of the process and allow its control in practical application, some results should be cited so that its importance in various industrial sectors can be assessed.

Application Problem Percentage increases Ref.
Semi-elastic springs Fatigue resistance 350 to 600% 2
Coil springs Fatigue resistance 200 to 5500% 2
Torsion Bars Fatigue resistance 140 to 600% 1
Drive shafts Fatigue resistance 400 to 1900% 1
Crankshafts Lifespan 3000% (variable) 1
Gears Lifespan 130 to 300% 1 and 2
Magnesium Alloys Corrosion 650,000% 2
Stainless steel Corrosion 1000% 2
Tools:

bits, bedames, feces
Lifespan 50% 70% 3
Drills Lifespan 25 to 30% 3
Cutting stamps Lifespan 100 to 150% 3
Rubber Stamp Lifespan 400 to 800% 3
Forged dies Lifespan 400 to 800% 3
Connecting rods Fatigue resistance 45 to 105% 1

References:

1- A. NIKU-LARI, France, Le Grenaillage de Precontraint, 1st conf.
SHOT PEENING, 1981, Paris.


2 – National Defense Research Coimmittee Report (NA – 115) – USA


3
Blastibrás Metals Treatment Ltda, Brazil, Mechanical World, September / 1976.

The cases and numbers cited in the table are just some illustrative examples. Many others have already been researched and the future can only lead to more diverse applications with even more significant results.

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