PICATINNY ARSENAL, N.J. – Army armament engineers here partnered with a pair of Pennsylvania companies, one with alloy expertise and the other with forging metals, to deliver a capable barrel for the ...
First, welding began to replace riveting in ship-and plane-building (TIME. Dec. 15). Now cast steel is replacing forged steel, and in tanks it is replacing both riveted and welded armor plate.
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