Modified 400-ton hydraulic press brake used at Northrop Aircraft, Inc, for precision stretch forming of aluminum skin sections for high performance military airplanes; wing leading edge can be finish formed in two to three minutes. (See also Machy (NY) v 58 n 1 Sept 1951 p 153-5)
Stretch-forming on press brake
Machy (Lond)
Machinery (London) ; 79 , n 2039
1951
3 pages
Photographs
Aufsatz (Zeitschrift)
Englisch
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Stretch-forming on press brake
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