Methods of manufacturing layered three-dimensional forms
First Claim
1. A method for manufacturing a three-dimensional form, comprising:
- a) providing a plurality of particulates in the absence of a binder material;
b) coating the surface of the particulates with an activation agent so that the diameter of the particulates is enlarged;
c) spreading a layer of coated particulates in the absence of any binder material;
d) selectively dispensing a fluidic unreacted organic binder material that is activated by the activation agent with a drop-on-demand dispenser onto a pre-selected portion of the particulates having the activation agent, the binder material being contacted with particles no earlier than when the binder material first contacts the activation agent;
e) hardening the binder material for forming a layer of the three-dimensional form that defines a matrix having the particulates firmly held within it; and
f) then repeating the steps (a)-(e) to form a remainder of the three-dimensional form.
5 Assignments
0 Petitions
Accused Products
Abstract
New methods and systems for manufacturing a three-dimensional form, comprising steps of providing a plurality of particulates; contacting the particulates with an activation agent; contacting particulates having the activation agent with a binder material that is activatable by the activation agent; at least partially hardening the binder for forming a layer of the three-dimensional form; and repeating these steps to form the remainder of the three-dimensional form. Following sequential application of all required layers and binder material to make the form, the unbound particles are appropriately removed (and optionally re-used), to result in the desired three-dimensional form. The invention also contemplates a novel method for preparing a form, where unbound particulates free of binder material are re-claimed.
-
Citations
13 Claims
-
1. A method for manufacturing a three-dimensional form, comprising:
-
a) providing a plurality of particulates in the absence of a binder material; b) coating the surface of the particulates with an activation agent so that the diameter of the particulates is enlarged; c) spreading a layer of coated particulates in the absence of any binder material; d) selectively dispensing a fluidic unreacted organic binder material that is activated by the activation agent with a drop-on-demand dispenser onto a pre-selected portion of the particulates having the activation agent, the binder material being contacted with particles no earlier than when the binder material first contacts the activation agent; e) hardening the binder material for forming a layer of the three-dimensional form that defines a matrix having the particulates firmly held within it; and f) then repeating the steps (a)-(e) to form a remainder of the three-dimensional form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification