why you have chosen 4046 filler, instead 4043, or, 4047.is better choice
-- Minimum heat input
Preheat not to exceed 100
Interpass not to exceed 120.
no weaving
HAZ is always weak in Heat treatable alloys .
Carry out in T4 condition and Artificial Age it to T6
THANKS & BEST REGARDS,
KG.PANDITHAN, BE, IWE, AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349
On Fri, Dec 8, 2017 at 2:18 PM, Sathish Kumar <sathishmech04@gmail.com> wrote:
Dear Experts
I need query on Aluminium welding
Material -6061-T6
Material Thickness-16mm
Filler wire- ER4046
Process-GMAW
Pre heat-70 centigrade
Interpass- 120 centigrade
Preclean by Acetone cleaner and SS wire brush
Gas-Ulta high purity Argon gas
During PQR qualifications we face failure in bend test. Crack open at 30degree itself. Is the above method required PWHT after welding. If so what is the method of PWHT and cycle.
Kindly clarify?
Thanks in advance
Regards
Sathish
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