A conveyance portion, a barrier portion, and a path are provided at places of a portion of a screw main body in which a kneading portion is provided. In at least one of the places, an entrance is opened to cause raw materials, conveyance of which is limited by a barrier portion to increase pressure on the raw materials, to flow in. The raw materials flowing in from the entrance flow through the path in the opposite direction to a conveyance direction of the conveyance portion. An exit is opened in an outer circumferential surface of the screw main body at a position outside the conveyance portion in which the entrance is opened.

A system (100) comprises a delivery guide (112) movable relative to a surface (114). The delivery guide (112) is configured to deposit a continuous flexible line (106) along a print path (122) that is stationary relative to the surface (114). The system (100) further comprises a vessel (236), configured to hold a volume of a liquid photopolymer resin (252) and to apply a quantity of the liquid photopolymer resin (252) to the non-resin component (108) to create the continuous flexible line (106). The system (100) further comprises a feed mechanism (104), configured to pull the non-resin component (108) through the vessel (236) and to push the continuous flexible line (106) out of the delivery guide (112). The system (100) further comprises a source (116) of curing energy (118). The source (116) is configured to deliver the curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) after the segment (120) of the continuous flexible line (106) exits the delivery guide (112).

A method (300) of additively manufacturing a composite part (102) comprises depositing a segment (120) of a continuous flexible line (106) along a print path (106). The continuous flexible line (106) comprises a non-resin component (108) and further comprises a photopolymer-resin component (110) that is uncured. The method (300) further comprises delivering a predetermined or actively determined amount of curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) at a controlled rate while advancing the continuous flexible line (106) toward the print path (122) and after the segment (120) of the continuous flexible line (106) is deposited along the print path (122) to at least partially cure at least the portion (124) of the segment (120) of the continuous flexible line (106).

A method (400) of additively manufacturing a composite part (102) comprises applying a thermosetting resin (252) to a non-resin component (108) to create a continuous flexible line (106) by pulling a non-resin component (108) through a first resin-part applicator (236), in which a first quantity of a first part (253) of the thermosetting resin (252) is applied to the non-resin component (108), and by pulling a non-resin component (108) through a second resin-part applicator (237), in which a second quantity of a second part (255) of the thermosetting resin (252) is applied to at least a portion of the first quantity of the first part (253) of the thermosetting resin (252), applied to the non-resin component (108). The method (400) further comprises routing the continuous flexible line (106) into a delivery guide (112) and depositing, via the delivery guide (112), a segment (120) of the continuous flexible line (106) along a print path (122).

A method (300) of additively manufacturing composite part (102) comprises depositing a segment (120) of a continuous flexible line (106) along a print path (122). The continuous flexible line (106) comprises a non-resin component (108) and further comprises a photopolymer-resin component (110) that is uncured. The method (300) further comprises delivering a predetermined or actively determined amount of curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) at a controlled rate while advancing the continuous flexible line (106) toward the print path (122) and after the segment (120) of the continuous flexible line (106) is deposited along the print path (120) to at least partially cure at least the portion (124) of the segment (120) of the continuous flexible line (106).

A method (300) of additively manufacturing a composite part (102) comprises depositing a segment (120) of a continuous flexible line (106) along a print path (122). The continuous flexible line (106) comprises a non-resin component (108) and a photopolymer-resin component (110) that is partially cured. The method (300) also comprises delivering a predetermined or actively determined amount of curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) at a controlled rate while advancing the continuous flexible line (106) toward the print path (122) and after the segment (120) of the continuous flexible line (106) is deposited along the print path (122) to at least partially cure at least the portion (124) of the segment (120) of the continuous flexible line (106).

A method (400) of additively manufacturing a composite part (102) comprises pushing a continuous flexible line (106) through a delivery guide (112). The continuous flexible line comprises (106) a non-resin component (108) and a photopolymer-resin component (110) that is partially cured. The method (400) also comprises depositing, via the delivery guide (112), a segment (120) of the continuous flexible line (106) along a print path (122). Additionally, the method (400) comprises delivering curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) deposited along the print path (122).

A method (400) of additively manufacturing a composite part (102) is disclosed. The method (400) comprises depositing, via a delivery guide (112), a segment (120) of a continuous flexible line (106) along a print path (122). The continuous flexible line (106) comprises a non-resin component (108) and a thermosetting-epoxy-resin component (110) that is partially cured. The method (400) also comprises maintaining the thermosetting-epoxy-resin component (110) of at least the continuous flexible line (106) being advanced toward the print path (122) via the delivery guide (112) below a threshold temperature. The method (400) further comprises delivering a predetermined or actively determined amount of curing energy (118) to the segment (120) of the continuous flexible line (106) at a controlled rate while advancing the continuous flexible line (106) toward the print path (122) to at least partially cure the segment (120) of the continuous flexible line (106).

A method (400) of additively manufacturing a composite part (102) comprises applying a photopolymer resin (252) to a non-resin component (108) while pushing a continuous flexible line (106) through a delivery assembly (266). The continuous flexible line (106) comprises the non-resin component (108) and a photopolymer-resin component (110) that comprises at least some of the photopolymer resin (252) applied to the non-resin component (108). The method (400) also comprises depositing, via the delivery assembly (266), a segment (120) of the continuous flexible line (106) along a print path (122). The method (400) further comprises delivering curing energy (118) to at least a portion (124) of the segment (120) of the continuous flexible line (106) deposited along the print path (122).

A method (400) of additively manufacturing a composite part (102) is disclosed. The method (400) comprises applying a thermosetting resin (252) to a non-resin component (108) of a continuous flexible line (106) while pushing the non-resin component (108) through a delivery guide (112) and pushing the continuous flexible line (106) out of the delivery guide (112). The continuous flexible line (106) further comprises a thermosetting resin component (110) that comprises at least some of the thermosetting resin (252) applied to the non-resin component (108). The method (400) further comprises depositing, via the delivery guide (112), a segment (120) of the continuous flexible line (106) along the print path (122).