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Die-roll definition Question
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Posted by: lemming81

04/15/2004, 09:47:47

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Hi, would someone be able to give me a clear definition of Die-roll.

I am currently running a simulation project on Fine-blanking and just can't find the right words to define what die-roll is!

Thanks.







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Re: Die-roll definition
Re: Die-roll definition -- lemming81 Post Reply Top of thread Forum
Posted by: KReed

04/15/2004, 12:52:52

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Die -roll is the amount of pull on  material before the cutting action begins. In othe words die-roll is the depth the cutting punch enters the material before it actually begins the cutting process.

There are a lot of factors that will have an effect on the amount of die-roll present, such as the sharpness of the cutting punch, die clearance,  and the hardness of the material being cut

In the Fineblanking process V-ring pressure is very important in reducing the amount of die-roll.

A great reference source of information is a book called Cold Forming and Fineblanking.

I'm not sure of the authors name but the ISBN is 3-444-10510-X

Hope this helps,







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Re: Die-roll definition Smile
Re: Re: Die-roll definition -- KReed Post Reply Top of thread Forum
Posted by: lemming81

04/19/2004, 10:01:24

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Thanks for the reply
It is a perfect definition as it is simple but to the point.
I have heard of the book you recommened but did not know the ISBN so thank you again for all your help.
Emma






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