Hi,
Buttering can be done to avoid PWHT of weld jont in some critical condition. If we butter the joint of a P5A material with stainless steel consumable or inconel and PWHT will be carriedout seperately the components. Then it is not required the PWHT of the butt weld as the final weld is doing in stainless steel/inconel weld metal.
Thanks & Regards
Muhammed Ibrahim PK
On 12 June 2010 20:56, john rodrigues <johnrodrigues2@rediffmail.com> wrote:
Mr. Das,
Buttering is a technique in which weld is applied to the surface in order to acheive desired properties or required dimensions.
For example in fit-up/butt joint, if distance between two butting members is excess, buttering is done on one member to reduce the gap.
Buttering is also done on surfaces to provide metallurgically compatible weld metal for subsequent completion of weld.
Regards.
John
On Sat, 12 Jun 2010 18:22:35 +0530 wrote
>
Dear Sir
Can anyone describe me what is "BUTTERING" stands
for in welding joint. If it is done before depositing the weld metal on job, is
it necessary to remove the same by back chipping.
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John Rodrigues
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