Where does the fracture take place? In the weld metal or in the heat affected zone? Which kind of bend test are you using: three-point bend testing or wrap-around?
If fracture takes place in the heat affected zone and you are using three-point bend testing: we have also had some experience with this in the past. Due to the severely softened zones in the HAZ, all deformation tends to take place in the HAZ. This produces a virtual former diameter which is significantly smaller than the actual former diameter. A solution to that might be to change your bend testing method (in agreement with your client, of course). Please let me know if you require more details about this.
Kind regards,
Wim Van Haver
Belgian Welding Institute
--- On Tue, 2/2/10, Elshan Feyzullayev <elshan_f@hotmail.com> wrote:
> From: Elshan Feyzullayev <elshan_f@hotmail.com>
> Subject: [MW:4186] Welding of Aluminum plate grade 6082 T
> To: materials-welding@googlegroups.com
> Date: Tuesday, February 2, 2010, 3:55 AM
>
>
>
>
>
> Dear friends,
>
>
>
> I need to run the new WPSin Aluminium steel plate
> using the attached grade of Aluminum plate.
>
>
>
> How many times I have tried but I can not get the
> acceptable results from bend test.
>
>
>
> It is broken after slight bending.
>
>
>
> Can you help me please how to weld it to get the acceptable
> results from bending?
>
>
>
> The wire I am using is ER5356 which is reccommended for
> this type of AL.
>
>
>
> Best regards,
>
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