** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** Q. What is the difference between ...

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.

The art of forging dates to at least 4000BC and probably earlier. Metals such as bronze and wrought iron were forged by early man to produce hand toots and weapons of war. Forging of wrought iron and ...

This section of the industry may be classified as jobbing with quantities generally small varying from one off to perhaps 100 off. Tooling for producing open die work may consist of flat or shaped ...