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20 records matched your query of cracking during induction hardening. Outputting records 1 to 20.
.... As far as i know especially when a problem accurs during induction hardening of the shafts(for example... ...Dear all
I would like to learn about the applicatin of double induction hardening in industry... ...The heat treater has basic hardening and tempering facilities along with induction hardening... ... treated by induction hardening. I don't know if it would be through-hardened, or just case-hardened, say... ...From what I see here, you are getting quench cracking. Quench cracking with induction hardening... ... tuning the induction hardening process to mitigate quench cracking. I am thinking perhaps that increasing... ...I'm having an issue with induction hardening a 2.5" dia/ 8" long shaft made from 4340H steel. What... ....
The other site is not reporting any problems with cracking due to the addition of an induction temper... ... percentage of scrappage after induction hardening due to cracking in the splines.
We have worked with two... .... The part has a splined section requiring induction hardening to 50-55 HRC. We are experiencing a very high... ...Scottn;
You mention that you don't get the expected service life by induction hardening the 4140... ...? Do you specify a heat treatment for the shaft material prior to local induction hardening?
I would... ....
http://www.eng-tips.com/search.cfm?pid=330&action=Search&q=cracking+during+induction+hardening&t=&h... ... with hardness 30 -35 HRC.after finishing we have to do induction hardening the splines and required case... ...I meant cracks formed during the quench phase of your hardening cycle. The reason quench cracks... ... fronts like that? I wouldn't rule out cracking during the coining operations, either, but I think... ... then quench cracks are a distinct possibility. Induction hardening with a polymer quench might be a more... ...I suppose that the pins are normalised before hardening. During quenching I have experienced... .../reasoning behind using laser hardening. Competitors in this industry use induction hardening to achieve... ...The application is a laser hardened steel corrugated roll that is cracking and peeling a small... ... process is done. This increases the surface carbon level thereby during hardening the case gets hardened... ...%, the annealed shaft COULD be induction hardened again but you would have to be careful about cracking. You... ... are having some problems with the welds cracking around these end sections. I suspect... ... or are they built up discs? Which welds are cracking? Is the seam of the rolled 3/8" section welded? ... ...Both polymer and oil can be used for 4340. I use polymer for induction hardening and a medium... ...Yes. Not only would you not decrease the cracking, but you could also end up with poor hardening... ... actual surface "hardening" (induction, carburizing, etc)?... ....
The pins are made of 4140Q&T material (120ksi yield) that has been induction hardened to yield a surface... ... upon the steel grade being used, the hardening process (furnace, induction, etc.), the geometry... ... induction hardening, with the subsequent distortion corrected by a straightening operation. For a complex... ... of the air hardening pin. I wonder how ductile the weld would be to that pin? I would think the induction... ... yet the weld area will be ductile and not subject to cracking.
I have a couple of concerns about... ... to induction hardening.
... ...Induction hardening of a shaft normally puts the surface stresses into a state of compression... .... Ductile iron will need to surface hardened (induction or flame hardened)to offer significant resistance... ... picking up the fines spilled from the trucks during transportation.... ... consider induction hardening the wear surfaces after PWHT in lieu of re-heat treating. 4340 alloy steel has... ... and will require a relatively high preheat and postheat to prevent cracking of the HAZ, regardless of the prior... ... and will be brittle and will break if induction hardening, carburizing or nitriding or any other similar process... ... but then the rounding stablizes during use. The part dimensions are about 1" x 1/2".
The manufacturing process would... SEARCH AGAIN
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