Bending Nitronic 60
Bending Nitronic 60
(OP)
Is anyone familiar with bending of Nitronic 60?
For 0.25" diameter bar stock, I would like to bend in a type of hairpin configuration, but do not know what minimum radius I can expect? We don't have shop access for trial and error, so any experience, advice, calulations, rule of thumb welcomed.
Info I have on Nitronic 60 is as follows:
(Annealed State)
UTS 103 KSI
.2% YS 60 KSI
Hardness Rb95
Thanks.
TC
For 0.25" diameter bar stock, I would like to bend in a type of hairpin configuration, but do not know what minimum radius I can expect? We don't have shop access for trial and error, so any experience, advice, calulations, rule of thumb welcomed.
Info I have on Nitronic 60 is as follows:
(Annealed State)
UTS 103 KSI
.2% YS 60 KSI
Hardness Rb95
Thanks.
TC





RE: Bending Nitronic 60
RE: Bending Nitronic 60
http://www.hpalloy.com/DataSheets/index.html
RE: Bending Nitronic 60
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Bending Nitronic 60
ht
RE: Bending Nitronic 60
Are you suggesting that if I heat it up I can expect to get a bend radius very much less than 4T? I'm not sure how "ductility" is quantified on this alloy but do you think a 180 degree bend of radius 1/2T (or less!!)would be unreasonable with heating? Remember, I don't have a shop that can play around with this for me.
Thankyou for your interest.
TC
RE: Bending Nitronic 60
Better be careful here because the quench and temper that Mr Hueston mentions above is reserved for alloy steels, not Nitronic 60 material. Nitronic 60 behaves like a 3XX series austenitic stainless steel. Heat can be used to assist the bending operation. However, you can significantly alter the corrosion resistance of this material if it is not performed properly. A 4T bend is rather generous and can be safely done using annealed material.
RE: Bending Nitronic 60
RE: Bending Nitronic 60
What exactly did you do in your cold forming? how tight of radius did you go for and in what thickness of mat'l? What amount of springback? did you work out a computation for the springback or other K-factor's? What do you think of Ken's idea of hot forming a tight radius of 1/2T? Your experience would be of interest.
Thanks.
TC
RE: Bending Nitronic 60
RE: Bending Nitronic 60
I've simply provided you with a direction to follow, one that can be done very simply in one's garage, since you don't have a shop.
As far as temperatures, ductility of the metal, etc, you need to dive into the problem and solve that for yourself.
Remember, this forum brainstorm ideas or inquires upon information that others may have knowledge upon. As a professional, I trust that many users here get an idea, then develop it accordingly. The concept of due diligence comes to mind.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada