Title:
Metal forming device and method
United States Patent 2976907
Inventors:
Harvey, George W.
Brower, David F.
Publication Date:
03/28/1961
Export Citation:
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Assignee:
GEN DYNAMICS CORP
Primary Class:
72/56
Other Classes:
29/419.2, 29/447, 29/516, 72/372, 219/153, 219/607, 264/DIG.58, 285/382.2, 425/DIG.26, 425/DIG.33
International Classes:
B21D26/14; B21D26/00
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US Patent References:
2686865Stabilizing molten material during magnetic levitation and heating thereof
2441517Means for shaping metal articles
2397717Method and apparatus for electrically heating and forming metal bodies
2372516Machine for forming material
2367206Method of joining objects
1365198Method of and apparatus for electrically welding tubing