BRAZING THREE-DIMENSIONAL PRINTER

摘要

Disclosed herein are methods, systems, and materials for high resolution three dimensional printing of metals using low cost raw material. The method employs masked brazing foils having structural layers, melting layers, and in some embodiments masking layers. The foils are selectively joined by brazing to form three dimensional metal objects. Some of the embodiments differ in the number of structural and/or melting layers in the foils, how masks are formed, and how many brazing steps are employed. Etching removes foil material that is not to remain as part of the final three dimensional object, and various embodiments are disclosed for applying the etchant.

主权项

1. A method of building at least one three dimensional metal object, the method comprising:
setting in place a first foil having at least one structural layer and at least one melting layer; setting in place a second foil on the first foil, the second foil having at least one structural layer and at least one melting layer; designating as first areas regions of the first and second foils to remain unjoined to each other; compressing and heating the first and second foils so that second areas of the first and second foils, distinct from the first areas, become joined to each other by brazing; and removing the first areas to form at least one three dimensional object.