Word: tooling
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
...moment U.S. arms manufacturers began to step up their operations to Franklin Roosevelt's 168-hour week, they ran into the most discouraging shortage of all: skilled labor. A spotty reality for months, it became serious when key industries like machine tool manufacture tried to add a third and fourth shift. In many cases foremen, lead men and supervisors have had to work 70 hours a week to keep things going...
...drill-press operator and tool grinder was a janitor...
...powder fumes, which corrode unplated steel casings so badly that they can be used only once, though brass casings can be re-used four times. Copperplated steel casings, however, seem to be resistant enough to be re-used 15 times-a great saving even though steel is harder to tool in the first place...
Commonest form of welding used today is arc welding. An arc welder has for his tool a device that holds a pencil-sized metal rod carrying a heavy (around 200 amps) electric current of low voltage. When he brings the rod close to the metal to be welded, the current leaps across the near-contact, forming a blinding arc whose temperature-some 6,500° F.-melts both the rod and the metal being welded into tiny molten pools which quickly cool into solid metal. Since the welder's rod (called an electrode) melts down like a candle...
...Machine tools. Casting is being nudged aside too by arc welding, notably in the machine-tool industry. Welding allows the frames of huge presses, drills, saws, etc., to be built of smaller pieces rather than cast in large chunks which then have to be cut, shaped and finished. Welding can cut by 25% (average) the time and cost of manufacturing the $450,000,000 worth of machine tools required yearly by the arming...