@dbooker630 Thanks for your input, We do have provision in Induction furnace to make tempering as well with modifying receipe, but the motive is to choose alloy which could produce fine martensite during hardening and reduce the cost incurred by tempering.
@Dhurjati Sen, the need of the grade is to eliminate already practicing tempering (Continuous belt type) for cost reduction purpose and achieve fine martensite structure in hardening itself, so an alloy which could fulfill this requirements will be handy in eliminating tempering process.
Dear Materials experts,
I would like to request information on steel materials grade which can be hardened (preferably medium carbon steels through Induction hardening route) but doesn't need tempering operation.
Kindly advice any such self tempering grades exists in practice. Few cast Iron...
@Edstainless thanks for your feedback,
I believe i didnt convey my question properly.
How does my coil produces a austenising temperature in the part exactly why not more or less than austenisation temperature?
Which factor decides in power source that when temperature raises it is...
Thanks @Edstainless:
We do change coil for 20mm to 40mm and the point is we keep same power and respective part to coil gap maintained 2mm for both dia 2mm. The question is how it does can able to attain austenisation temperature for all diameters for same power keeping coil to part gap same...
Thanks Kingnero,
kindly advice how does the probe functions if I use two material grade axles of different austenitising temperature or two distinct diameter 20mm bars and 40mm bars? Does it position itself to that austenisation temperature automatically or forces us to change any of power...
Dear experts can you provide help by sharing info on how does in induction hardening process austenisation temperature is controlled? What is the relation between Frequency/power/and output temperature during heating?
If any general correlation available or possibly with below example can...
@Tugboateng: we did check hardness before and didnt found any marked difference. (Apologies for late reply, didnt get notification on time)
@dbooker630: We changed inductor and quench ring also we tried this part number in other machines too using same parameters, still we faced problem and for...
@3DDave: Thanks for your insights and response
The height here is 500mm. Generally we anticipate 0.5 to 1mm growth after IH so we cut parts based on this assumption.
We observed that change in heat number doesnt bring this vast variation, hence im looking for variables in each heat which is...
Experts,
we face abnormal growth in Induction hardened axle bars of Grade SAE1050 ranging around 0.1 to 1.3mm.
Generally we solve this issue by adjsuting concentration of quench medium (if we add water growth will increase and polymer addition will reduce growth).
But now inconsisitenetly...
