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?
Improves fatigue life and durability
Enhances stress corrosion resistance
Refines surface roughness for better coating adhesion
Reduces residual tensile stress from machining or welding
Creates uniform matte or satin finish for aesthetics
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
Aerospace: landing gears, turbine blades, structural components
Automotive: gears, springs, drive shafts, connecting rods
Energy: gas turbines, wind power components
Construction machinery: hydraulic cylinders, gears
Tooling & molds: punches, mold surface strengthening
