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US 4,302,658 AGranted
Welding silicon steel
AssigneeAllegheny Ludlum Steel Corporation
InventorJack M. Beigay
Life of this patent
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Abstract
A process for improving the mechanical properties of welded silicon steel. The weld heat affected area of welded silicon steel is heat treated while retaining the welded lengths within a clamping fixture so as to restrain movement thereof from the initiation of welding through the completion of the heat treatment.
Claims1
In a process for welding two lengths of steel having from 2.5 to 4.0% silicon and less than 0.008% boron, comprising the steps of:
- clamping said lengths in a fixture to restrain movement thereof,
- welding said clamped lengths, and
- heat treating the weld heat affected area of said lengths at a temperature in excess of 1500.degree. F., wherein the improvement comprises:
- retaining said clamped lengths within the fixture from the initiation of the welding step through the completion of the heat treating step, and
- after heat treating, cold rolling the welded length.
2 more elements
Dependencies are inferred from the claim text.