Patent ID: 9744722
Date: 2017-08-29
CPC Classifications: B29C,B29K,B33Y,C08K,C08L

Claim:
1. A method for printing a three-dimensional part with an additive manufacturing system, the method comprising: providing a consumable material comprising a polyamide blend having at least one semi-crystalline polyamide and at least one amorphous polyamide that is substantially miscible with the at least one semi-crystalline polyamide, wherein the at least one amorphous polyamide constitutes from about 50% by weight to about 85% by weight of the polyamide blend and wherein the consumable material has a solidification temperature and a glass transition temperature, and wherein the consumable material is capable of printing a three-dimensional part having a curl less than about 0.01 inches pursuant to a Curl Bar Test, and has a relative strength in a conditioned state of at least about 1,600 psi; heating a chamber of the additive manufacturing system or locally heating a deposition region of the additive manufacturing system to a temperature between the solidification temperature and the glass transition temperature of the consumable material; feeding the consumable material to a liquefier assembly retained by the additive manufacturing system; melting the consumable material in the liquefier assembly; and extruding the molten consumable material from the liquefier assembly as a series of roads in the heated chamber or the locally-heated deposition region to print the three-dimensional part in a layer-by-layer manner.