US 9,808,886 B2
Method and system for additive manufacturing using high energy source and hot-wire
Steven R Peters, Huntsburg, OH (US); Paul E Denney, Bay Village, OH (US); Badri Narayanan, Highland Heights, OH (US); Dionysus Damato, Incline Village, NV (US); and Michael Whitehead, Strongsville, OH (US)
Assigned to Lincoln Global, Inc., City of Industry, CA (US)
Filed by LINCOLN GLOBAL, INC., City of Industry, CA (US)
Filed on Mar. 23, 2015, as Appl. No. 14/665,864.
Application 14/665,864 is a continuation in part of application No. 14/163,367, filed on Jan. 24, 2014.
Prior Publication US 2015/0209908 A1, Jul. 30, 2015
Int. Cl. B23K 26/14 (2014.01); B23K 9/10 (2006.01); B23K 35/02 (2006.01); B23K 9/12 (2006.01); B23K 9/173 (2006.01); B23K 26/34 (2014.01); B23K 15/00 (2006.01); B23K 26/32 (2014.01); B23K 26/342 (2014.01); B23K 26/211 (2014.01); B33Y 30/00 (2015.01); B33Y 10/00 (2015.01); B23K 103/04 (2006.01); B23K 103/08 (2006.01); B23K 103/00 (2006.01); B23K 103/10 (2006.01); B23K 103/12 (2006.01)
CPC B23K 26/1423 (2013.01) [B23K 9/1093 (2013.01); B23K 9/124 (2013.01); B23K 9/173 (2013.01); B23K 15/0046 (2013.01); B23K 26/14 (2013.01); B23K 26/211 (2015.10); B23K 26/32 (2013.01); B23K 26/34 (2013.01); B23K 26/342 (2015.10); B23K 35/0261 (2013.01); B23K 2203/04 (2013.01); B23K 2203/05 (2015.10); B23K 2203/08 (2013.01); B23K 2203/10 (2013.01); B23K 2203/12 (2013.01); B23K 2203/50 (2015.10); B23K 2203/52 (2015.10); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 22 Claims
OG exemplary drawing
 
1. An additive manufacturing system, comprising:
a high energy device which irradiates a surface of a work piece with a high energy discharge to create a molten puddle on a surface of said work piece;
a power supply which supplies a heating signal to a consumable where said heating signal comprises a plurality of current pulses and where each of said current pulses creates a molten droplet on a distal end of said consumable which is deposited into said puddle; and
a contact tip assembly having a passage through which said consumable passes and which delivers said consumable to said work piece;
wherein each of said current pulses reaches a peak current level after said distal end of said consumable contacts said puddle,
wherein said heating signal has no current in between said plurality of said current pulses;
wherein said distal end of said consumable is not in contact with said puddle between subsequent peak current levels of said current pulses;
wherein said power supply controls said heating current such that no arc is created between said wire and said work piece during said current pulses; and
wherein said contact tip assembly has at least one moveable component which changes a shape of said consumable prior to delivery of said consumable to said work piece.