Plate Bending Machine

Try in the previous threads there is at least one -several tears old- where you find almost all what you need. This thread was generated by same questions from an Indian designer who had to design a HUGE machine and was not sure about what he had to do.

I have refered the previous thread of kaushal mistry but i don't understand anything and he had also calculated radius to be rolled,dia of rollers,distance and tonnage and no one has mentioned the formula..

so,i don't understand his calculation...

can u help me?

Those are not HIS calculations but mine. I tried to explain how the problem should be solved. Why not try to get in touch with him ? He could be able to help you in a better way since you speak same language and he should have now a lot of experience.

As for formula if you have to design such a machine you have first to understand how it works and after it formula come from themselves.

Basically on CR4 we do not make student work we can ONLY help them when they are in difficulty but after they made their work.

As for the comment about tonnage it is wrong or at least not complete.

I wonder people who can spend their professional life with only one book.

sorry...i know its your calculations but i know it latter on so once again sorry..

I mailed him earlier but he was not replying to my mail..

I want your help because i m not able to get it...

how u had done this calculations?will u please explain because i m not getting the start...plz..

please also mention the source of those formulas....also mention how to calculate tonnage...because i m also not getting the book for the same..plz..help me..

As a final year student what do you know about bending ?

What do you know about geometry ?

In fact all what you need is on the sketch if you have the NORMAL knowledge about what I wrote and with help of the sketch you MUST be able to do the deduction of the formula by yourself. I did NOT use special formula or any hidden and secret knowledge.

First you try, if you make errors you will get support but I shall NEVER give you pre chewed food. I helped many but ONLY this way.

ok..thanks if i stuck in anywhere i will tell u...can u suggest me the books or net source?

I suggest all the sketches above you have ALL required input for your problem

Look in the Machinist Hand-book. I will look for mine tomorrow, and try to find the formula.

I don't get any formula from this book please wright it.....or mail me at kashyapshah526@gmail.com

kashyap, what is your machine supposed to do? Roll plate into a tube? Tonnage will increase as dia. decreases. According to your sketch you will have 4 formulas to solve. Does your machine form just 1 size tube? I would build it to roll all differt sizes of tube. I am a tool & die maker and the Machinist Hand - Book will be invaluable for the rest of your working life, if you will be an engineer. I suggjest you go ahead and buy a book, arould $200 bucks. The formulas in my book are as follows: Machinery's Handbook 20th Edition page 427. I agree with Doogleass wholeheartedly, you really shold know how to do this. Let us know how it works out for you. plutokrat

hiii,plutokrat,

I am going to make a round shell for the pressure vessel,not tube...and for that i don't find any formula so i m taking the advise..if u have any idea please suggest...

With all due respect, if you are a senior in, presumably, Mechanical Engineering, you should be able to locate the appropriate formulae and do the calculations. If you cannot do that now, what do you expect to do after you have graduated and secured employment wherein you have represented that you are capable of performing the tasks expected of a graduate Mechanical Engineer? Will you still seek solutions on a forum such as this? If you do, will you share your salary with those who do your work for you?

hiiii,doogleass..

I m not so experience to locate appropriate formula and i m also not getting the source that's why i have put this question on the forum

hi kashyap , do u have the project report of this project .