DUCTILE IRON DATA

FOR DESIGN ENGINEERS

AUSTEMPERED DUCTILE IRON

Figure 4.35  Effect of hobbing and shot peening after heat treatment on the bending fatigue
strength of ADI gear teeth.

A)  Heat treatment after hobbing.
B)  Hobbing after heat treatment.
C)  Shot-peening, 0-35 mm Almen A.
D)  Shot-peening, 0-45 mm Almen A.
E)  Shot-peening, 0-55 mm Almen A.