Monday, February 1, 2010

Re: [MW:4174] Herring porosity in my welds ?

If you are using an F3/F4 procedure, this herring porosity could be a slag trap caused by sidewall undercut from a cellulosic root covered by filler metal.  

If a cellulosic root is deposited, the sidewall undercut should be removed by grinding or if the WPS allows, it should be remelted by a cellulosic "hot pass".

Please post if you have other information or additional questions. 

Regards,

Darcy  



On 2010-01-31, at 22:43, Jimmy Nielsen <nielsen.jimmy@gmail.com> wrote:

Smaw

On 1 Feb 2010 13:06, "Darcy Morin" <damorin@shaw.ca> wrote:

Which welding processes are you using?





On 2010-01-31, at 21:47, Jimmy Nielsen <nielsen.jimmy@gmail.com> wrote:

> Hi All
>
> On some RT...

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