Method and apparatus for fabrication of three-dimensional metal articles by weld deposition
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United States of America Patent
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May 4, 1993
Grant Date -
N/A
app pub date -
Jul 29, 1991
filing date -
Jul 29, 1991
priority date (Note) -
Expired
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Abstract
In a method and apparatus for forming a three-dimensional object, successive layers of metal are welded together to build the object. After each layer is formed a complementary material is placed adjacent the layer. In this manner, layers of material form a block of welded metal and complementary material. Then, all or a portion of the complementary material which serves as a support structure during forming can be removed. The welded layers are milled to a final shape either after each layer is formed or after all layers have been made. Existing CNG machines can be easily modified to practice the method.
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