Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-12-18
2007-12-18
Goff, John L (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S073100, C228S110100, C228S228000
Reexamination Certificate
active
10393148
ABSTRACT:
This invention improves upon existing approaches by providing a method for improving the uniformity of additive manufacturing processes of the type wherein material increments are consolidated to produce a three-dimensional object. According to one aspect of the invention, the method comprises the steps of tacking an increment during the method to minimize creep, then fully consolidating that increment to the underlying material. According to a different aspect of the invention, the method includes a step of steering the welding head or the feeding of the increments to ensure that the relative orientation of the contact line of the welding head as defined by the lowest surface is parallel to the central axis. As yet a further aspect of the invention, a different method includes a step of placing the increment so as to minimize the ratio of deformed to undeformed material. Such placement may be carried out manually over automatically.
REFERENCES:
patent: 6450393 (2002-09-01), Doumanidis et al.
Gifford, Krass, Sprinkle Anderson & Citkowski, PC
Goff John L
Solidica, Inc.
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