Deep rolling of railway axle
Task
Fatigue strengthening of railway axle
Solution
Inducing residual compressive stress by deep rolling with HG13 tool
User benefits
- Achieved demanded surface quality of Ra = 0,8 μm
- Achieved demanded fatigue strength
- Reduce costs by about 90%
Details
- Workpiece: Railway axle
- Part of: Wheel set
- Material: Heat-treated steel
- Tensile strength: 550 - 650 MPa
- Hardness: 170 HB
Parameter
- Tool: HG13-9E270°
- Circumferential speed: 100 m/min
- Feed rate: 0,1 mm/rev.
- Rolling force: 80 bar
DOWNLOAD Application Example Railway Axle
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ECOROLL AG - Deep rolling of railway axle Inducing residual compressive stress by deep rolling