Identification of quench cracks at tooth root
Identification of quench cracks at tooth root
(OP)
I have a small gear, 26 DP / 46 teeth, fabricated from 8620. A recent gear tooth failure problem was potentially linked to the existance of quench cracks. I question the observation only on the basis that only a single tooth was found to be cracked. Seeing as the entire gear would be submitted to the same heat treatment wouldn't I expect other teeth to exhibit the quench cracks? Comments?
BCK
BCK





RE: Identification of quench cracks at tooth root
RE: Identification of quench cracks at tooth root
Was it inspected with wet magnetic particle ?
Did the magnafluxer check it in several steps, with a new magnetization for each orientation?
RE: Identification of quench cracks at tooth root
RE: Identification of quench cracks at tooth root
RE: Identification of quench cracks at tooth root
Thank you for the very helpful guidance.
BCK