Mr,Gnanapandithan,
There could be many factors related to your problem. From the face value very high travel speed looks to be the culprit. A reduction of travel speed followed by a change of gas cylinder/manifold may help. Sometimes gases could be contaminated with moisture.
Please see the attached links and the attachments, which would definitely help you for RCA.
Thanks.
Pradip Goswami, P.Eng,IWE,
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
H-905-6799677, 905-9631505
C-905-9793232
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kannayeram Gnanapandithan
Sent: Saturday, August 06, 2016 9:43 AM
To: materials-welding
Subject: [MW:25208] Worm track/hole
Process FCAW, Wire E81T1-B2/Dia 1.2mm, shielding 85%Ar+15%Co2. Flow rate 20lpm. Current 240amps, 26 volt, travel speed 800mm/ minute. while welding, we are getting defect of wormholes/wormstracks , some time continuous and intermittent on top of the weld. Experts, what would be the reason for this defect?
--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAJzm4eNah6%3DE4H6CPk%3DPxyRVVZxdhG72jHEcq1mTXbhf1nkDcg%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
No comments:
Post a Comment