Bead Blasting Services
Bead blasting is an advanced surface treatment process that projects small spherical media (glass beads, ceramic beads, or steel shots) onto a part’s surface at high speed. This process creates a uniform compressive stress layer, improves surface finish, and enhances fatigue resistance, wear resistance, and stress corrosion resistance.
What is Bead Blasting?
Bead blasting is a cold-working surface finishing method. High-speed beads impact the surface, producing a “micro-hammering effect” that strengthens the material without affecting the part’s dimensions.
Why Choose Bead Blasting?
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Improves fatigue life and durability
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Enhances stress corrosion resistance
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Refines surface roughness for better coating adhesion
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Reduces residual tensile stress from machining or welding
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Creates uniform matte or satin finish for aesthetics
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Ideal for precision parts, aerospace, automotive, and industrial applications
Bead Blasting Surface Parameters
| Parameter | Range / Description |
|---|---|
| Surface Hardness | Increased by 10%–30% |
| Residual Stress Depth | 0.1 – 0.5 mm |
| Surface Roughness (Ra) | 1.0 – 6.3 μm (adjustable) |
| Surface Finish | Matte, satin, uniform texture |
| Fatigue Life Improvement | 20%–60% |
| Media Types | Glass beads, ceramic beads, steel shots |
| Heat Generation | Low (cold process) |
Detail of Bead Blasted Part
Materials Suitable for Bead Blasting
| Material Type | Example Grades |
|---|---|
| Carbon Steel | Q235, 45# Steel |
| Alloy Steel | 40Cr, 42CrMo, GCr15 |
| Stainless Steel | SUS304, SUS316, SUS420 |
| Aluminum Alloys | 2024, 6061, 7075 |
| Titanium Alloys | TA2, TC4 |
| Magnesium Alloys | AZ91D, AM60 |
| Copper & Alloys | H62, C1100 |
Applications of Shot Peened Parts
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Aerospace: landing gears, turbine blades, structural components
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Automotive: gears, springs, drive shafts, connecting rods
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Energy: gas turbines, wind power components
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Construction machinery: hydraulic cylinders, gears
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Tooling & molds: punches, mold surface strengthening
