Gear failure index

4.0 Plastic flow of teeth

Click on photograph to enlarge
	Figure 4a Overloaded soft teeth showing flow of the tooth material over the ends of the teeth
	Figure 4b The build up of a feather edge at tooth tips by plastic flow
Main Characteristics	When unhardened teeth are subjected to very high loads, and particularly shock loads, the surfaces of the teeth can become swaged, so that the surface material is squeezed out at the ends and towards the tips of the teeth.
Cause
Note
Possible Confusion with Other Types of Damage
Comment

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