adam steppe welding engineer high steel structures llc...welding engineer . high steel structures...
TRANSCRIPT
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Adam Steppe
Welding Engineer
High Steel Structures LLC
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VDOT special provisions
Welding consumables
Types of welds
Code requirements
Welder qualifications for A1010
Job Planning
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Hexavalent Chromium• Hazardous to lungs
• Known carcinogen
• Only present when atomized into a fume
Supplied Air half mask respirator
Safety & Health issues
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Initial trialsWhat we knew going in.
Weldablility?
$$ cost of R&D• A lot can be learned from a picture.
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Scary moments
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Buy American Act
Another hurdle…
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Testing & Trials
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Testing & Trials
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Testing & Trials
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Testing & Trials
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Testing/Qualification
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Testing/Qualification
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Testing/Qualification
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Welder Qualifications
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Welder Qualifications
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Lets get started!
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Semi-Auto issues with feeding a 3/32” stiff wire.
Switched to Automatic Feeder, issues went away.
Hold up a minute…
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No oxy-fuel beveling
Wire feeders
Slag removal was difficult
Excessive distortion
Maximum interpass reached very quickly
Radiographic Testing….
Butt Splice issues.
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Butt splices had some distortion
Fume generation from FCAW process & capture
Build issues
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Started 2F Ended 1F
Web to Flange
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“Typical” grade 50 1010 grade 50
Sweet spot for best weld quality
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Stiffeners Pretty typical fitting Wire feed issues
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Handheld SAW for Stiffener to Flange Typical Studding
Finish & Studding
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NDT throughout process
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Bill Via – VDOT (approvals and guidance)
Steve Sharp – VDOT (pictures & guidance)
Select Arc Inc. – Tom Glennon & Jerry Mathison (consumables)
Lincoln Electric – Dave Watson (consumables)
Claude Satterfield – TRC (QA)
All of High Steel Co-workers who helped to adapt and overcome.
Fought & Company – Steve Fugate (PP online)
Give credit where credit is due: