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second pichttp://files.engineering.com/getfile.aspx?folder=d1e57c97-c988-4d3e-a2b1-e896c81d7038&file=weld_defect.jpg

this time i welded an A 105 flange with AISI 304 bar. the problem is the same. this time i increased the space where the weld stop after past termination point and i used a pulling technique. the weld seems ok but i tryed to grind the weld joint and i found the crater. see...

yes, you are right, this is a single pass, automatic weld. the torch stands in front of the workpiece, not perfectly aligned with the piece, but dislocated a little in the LEFT side of the center respect rotation that is clockwise. SEE ATTACHED FILE i already tryed all this possibilities...

welding process is mag 135, not by electrode, machine didn t stop at the end of the weld but go ahead,i justy tryed it but didn t solve the problem in this way, what do you think about the exaclty torch position? can the position affect the welding? thanks

can anyone here help me in this trouble? i m welding an A105 rod in A105 flange and i got always an hole at the end of weldign joint, like in the attached picture. both parts are well cleaned and degreased, material used to join the 2 parts ESAB 12.64 1,2mm wire, gas 82-18. thanks matteo

hi which is the tichness? in the past i got the same problem, i solved it in this way: 1) clean very well the parts to be joined, there no should be grease on them, the best way to do that is using acetone :) that is a secret :) 2)whic gas do you use? C02 2% Argon 98? 3) metal filler...

definetly first time we have to weld those materials. do you have info about? where are you from? i m italian ciao

where do you come from arunmrao?

i would be the same for Italy. average price 50Euro / hour but since the last 2 years prices are changed a lot. 3 years ago i can worked up to 100-120 euro per hour, at now work at 45-50 is good, i know someone who work for 25 euro/ hour. i don t know how they can pay operators (on CN...

yes first time why do you ask?

i had this information by Esab: Filler Metal - Arcaloy 312-16 (E312-16) or OK 68.81 (E312-17) Preheating would not normally be required Slow cooling would not normally be required For a simple flange to pipe weld post weld heat treatment would not normally be necessary What do you think...

hi stanweld i do not understand what do you want to day with Ditto metengr.

finished it is 1 inch, 25mm tick, sincerely i don t know service temperature, i m only manufacturer nit designer, i know this cylinder is used in hot roll mill, maybe 500-600 C°? thanks for help

hi all anyone here can help me in this problem: i have to join by GMAW a pipe material: ASTM A297 HD also DIN: GX40CrNiSi27-4 also UNS: J93005 with AISI 1020 carbon steel. can anyone tell me 1)wich select filler metals use to jon them 2) preheating temperature? 3) cooling rate? any help...

hi all anyone here can help me in this problem: i have to join by GMAW a pipe material: ASTM A297 HD also DIN: GX40CrNiSi27-4 also UNS: J93005 with AISI 1020 carbon steel. can anyone tell me 1)wich select filler metals use to jon them 2) preheating temperature? 3) cooling rate? any help...

hi all anyone here can help me in this problem: i have to join by GMAW a pipe material: ASTM A297 HD also DIN: GX40CrNiSi27-4 also UNS: J93005 with AISI 1020 carbon steel. can anyone tell me 1)wich material use to jon them 2 preheating temperature 3) cooling rate? any help is apprecite...