Induction heat treatment axle shafts
Induction heat treatment axle shafts
(OP)
what can be the reason for axle shafts comming out more "bent" or "warpped" than usual after induction heat treatment?
thanks
thanks
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Induction heat treatment axle shafts
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RE: Induction heat treatment axle shafts
RE: Induction heat treatment axle shafts
1. Decrease in quench temperature
2. Decrease in polymer concentration (assuming water + polymer quenchant)
3. Degradation of polymer in quenchant due to excessive usage, biodegradation, etc.
4. Increase in part temperature prior to quenching (slower scan speed while using the same power)
5. Increase in quench intensity (higher spray pressure or flow rate)
6. Irregular quench spray pattern due to clogged or obstructed nozzles, etc.
7. Poor thermal distribution in the part due to excessive scan speed.
RE: Induction heat treatment axle shafts
cheers
RE: Induction heat treatment axle shafts
RE: Induction heat treatment axle shafts
The straightener rejects the shaft even before it starts to straighten it and I do not want to change the starightner parameters. I m looking into the reasons the TVP suggested in the earlier reply. Can there be other reasons apart from the ones mentioned by TVP that I should be looking into as well?
thanks & cheers
RE: Induction heat treatment axle shafts
RE: Induction heat treatment axle shafts
RE: Induction heat treatment axle shafts
Are the parts as straight before heat treat as they have been in the past?
If these are induction hardened on centers vertically, make sure the top one is free floating. I have seen when these fail or are setup wrong cause a lot of warpage, because they push excessively as it is scanned.
Another thing to look for is if there are unusual stresses present. Stress relieve some in vacuum ~1100°F (rack vertical!) before induction hardening, then harden them to see if they stay straighter.
RE: Induction heat treatment axle shafts
RE: Induction heat treatment axle shafts