Lay wire technique for aluminum welding

Date 12-20-2015 06:07

Hi all, i have learned recently from one of the older posts regarding lay wire technique for aluminum welding. Lawrence recommended not to use this technique because bottom radius of the filler wire won't get the cathodic cleaning as it might escape DCRP cycle cleaning action of arc hence causing lack of fusion and oxide inclusions.
By taking this concept i have a question that can i use EB consumable inserts for aluminum welding? EB inserts are basically preplaced filler metal so will the same problem of lack of fusion and oxide inclusions will exist if i use consumable insert for aluminum welding?
Thanx all in advance.

By Northweldor (***)

Date 12-20-2015 13:20

Frank Armao, Director of Aluminum Welding for Lincoln, says the same problem exists.

http://www.thefabricator.com/article/aluminumwelding/welding-aluminum-piping

By waqasmalik (**)

Date 12-20-2015 17:22

Hmmm

By Northweldor (***)

Date 12-20-2015 20:32

SPEAKER BIO:
FRANK ARMAO
Mr. Armao has been active in the welding industry for 40 years and is currently
Director of Aluminum Technology based at Lincoln’s headquarters in Cleveland,
Ohio. He is responsible for the development of new equipment and
consumables for aluminum applications. He is also responsible for the development and
administration of aluminum training courses for Lincoln customers and Lincoln
distributors and internal personnel
.
Mr. Armao earned his BS and MS degrees in Metallurgical
Engineering from the Polytechnic Institute of Brooklyn. He is a member of the American Welding
Society, ASM International and is a former Certified Welding Inspector. He has
presented numerous papers and conducted many seminars in the area of
aluminum welding technology. He serves on the American Welding Society
Welding Handbook Committee, is Chairman of the AWS D1(G) Aluminum
Subcommittee and a member of the D1 Main Committee and the Aluminum
Association Technical Advisory Panel on Welding and Joining

By waqasmalik (**)

Date 12-20-2015 23:57

Thank you and i know dear. Currently, i have 79 articles of frank armao in my computer. I wonder how could i miss this one

By Northweldor (***)

Date 12-21-2015 15:23

Sorry I misjudged your vast knowledge, honeybunch! :grin:

I just thought your enigmatic reply indicated a lack of knowledge of Armao's qualifications. Perhaps you should try for more clarity next time! :confused:

By welderbrent (*****)

Date 12-21-2015 22:21

"Hmmm" does leave a lot of room for any old private interpretation.

Brent

By waqasmalik (**)

Date 12-22-2015 00:44

Haha sorry for this time. I liked the article dats why i said hmmm