DerekBusick1987
- DerekBusick1987
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New Member
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Joined:Tue Jan 11, 2022 10:48 pm
Does anyone have any info on the D15.1 for railroads cars. I have an interview with TTX . Any info would be greatly appreciated. Thanks Guys
What info are you looking for? D15.1 is qualification document for people used in the rail industry. I view it as the companion to D1.1.
We use it at the loco builder I work for. General qualification pieces are done for sheet metal (usually 3/16") and then 3/4" plate. It's up to the builder to choose the weld processes. Our baselines are done with MIG (GMAW) with the sheet metal and flux core (FCAW) for the plate. Of the pieces I have done the one that takes the most time is the 2G weld w/ backing strip in a 12" long long 3/4" plate. Our guys have some choice in terms of groove angle though 30 degrees per side (60 included) is recommended. A start-stop is required in the root pass. Three 1/4" bend samples are cut across the groove. I think one of the remaining edges is sanded and etched. No grinding/dressing is permitted between passes.
Cheers, Alan
We use it at the loco builder I work for. General qualification pieces are done for sheet metal (usually 3/16") and then 3/4" plate. It's up to the builder to choose the weld processes. Our baselines are done with MIG (GMAW) with the sheet metal and flux core (FCAW) for the plate. Of the pieces I have done the one that takes the most time is the 2G weld w/ backing strip in a 12" long long 3/4" plate. Our guys have some choice in terms of groove angle though 30 degrees per side (60 included) is recommended. A start-stop is required in the root pass. Three 1/4" bend samples are cut across the groove. I think one of the remaining edges is sanded and etched. No grinding/dressing is permitted between passes.
Cheers, Alan