Can we get the data, material thickness, form of the head, knuckle radius,
crown radius, straight face and location of the crack?
Shinde
----- Original Message -----
From: "T. Rizal H." <aatkho@gmail.com>
To: <materials-welding@googlegroups.com>
Sent: Saturday, October 16, 2010 6:14 PM
Subject: Re: [MW:7591] forming head
> Sorry, I don't answer your question but please tell the thickness and
> which portion crack happened, such as on weld, on knuckle or other.
>
> Thanks
>
> On Sat, Oct 16, 2010 at 7:09 PM, Navid Navidi <navid_751400@yahoo.com>
> wrote:
>> Hello All,
>> We are going to form a head for a presser vessel. Its diameter is about
>> 3000mm.
>> And it is made of A516Grade70. Unfortunately, while forming we have
>> cracks on
>> the material which cause rejection of the head.
>> How can we form a crack-free head? Do we have to do the forming in
>> several
>> steps? Do we need heat treatment between forming steps?
>> Thank you,
>> Saied
>>
>>
>>
>>
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>
>
>
> --
> Regards,
>
> T. Rizal Hidayat
>
> --
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> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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