Shot peening is a process specifically designed to enhance the fatigue strength of components which are subject to high alternating stress. It can help to prevent fatigue cracks, corrosion, deteriorated strength, and premature fatigue that can be caused by machining and form metal parts which also creates internal stress concentration. It also helps to prevent crack formation and growth since typically fatigue cracks generally begin at the imperfection on the surface of the material.
Why does the Peening Industry use shot blasting machines?
The core position of shot blasting machines in the "peening industry" stems from their ability to most economically and efficiently solve the fundamental problem of premature fatigue fracture of metal components under cyclic stress.
What types of shot blasting machines are needed for which components in the Peening Industry?
Industry sectors | Typical components | Core processing purpose | Machine types |
Automobile manufacturing | Crankshaft, connecting rod, gear, gear ring, leaf spring, coil spring, torsion bar, valve spring | Fatigue strengthening: Significantly improves bending fatigue strength and resistance to stress corrosion. Gear life can be increased by 1500%, crankshaft by 900%, and leaf spring by 600%.。 | - Continuous shot blasting machine (leaf springs, coil springs, torsion bars) - Rotary table shot blasting machine (crankshafts, connecting rods) - Blast track shot blaster (valve springs and other small parts) |
General Machinery and Transmission | Gearbox gear shafts, drive shafts, bearings, powder metallurgy sintered parts | Stress relief and strengthening: Eliminate harmful residual tensile stress, implant compressive stress, and improve surface hardness and density. | Rotary table shot blasting machine |
Fasteners and Standard Parts | High-strength bolts, screws, and rivets | Hydrogen embrittlement resistance and fatigue strengthening: effectively prevents stress corrosion and hydrogen embrittlement fracture of fasteners.。 | Tracked shot blasting machine, rotary table shot blasting machine |
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