D15.3/D15.3M:2026 - SPECIFICATION FOR RESISTANCE WELDING FOR RAILROAD APPLICATIONS
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This specification provides the general resistance welding requirements for railcars, locomotives, and their components. It includes, but is not limited to, resistance spot and resistance seam welding of aluminum and iron-based alloys. There are requirements for machine qualification, welding schedule certification, production witness samples, and inspection and acceptance criteria.
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