estimate force for spining machine

[mmaleki]

Dear All
Thanks inadvance for your kind attention.
Is there any one to show me how to estimate force for spining forming a metal plate.
As you know, heads of pressure vessle are elleptical form.you will find in attchment a sketch to clarifing force and mechanism of forming.
kind Regards,
M.Maleki

http://files.engineering.com/getfil...-c1bf-431c-a3b7-f915ca6d6630&file=FORMING.pdf

 

[CoryPad]

Any information on part thickness before and after? Workpiece material? Size of the rollers?

 

[fegenbush]

If you would like to find the forces in the direction specified, I would also need to know the dish and knuckle radius in addition to what CoryPad mentioned. Also, will this be hot or cold formed? Will it be annealed somewhere in the middle of forming?

 

[mmaleki]

Dear Corypad
Max. thickness after forming 32mm,for before forming I think is related to machine e.g. size of roller, number of rolling to get final radius.
Thanks,
M.Maleki

 

[mmaleki]

Dear Fegenbush
As attached you will find sketch related to knuckle and crown radius,
This will be cold formed and material is carbon steel.
I think heat treatment is used for 38mm and above in thickness.
thanks for your kind corporation,
Regards,
M.Malkei