润滑科技信息平台

Friction stir additive manufacturing systems and methods

专利摘要

A method of depositing an extrudate onto a substrate, the method including steps of rotating a stirring tool about an axis of rotation while urging a tool distal end of the stirring tool against the substrate, and wherein the stirring tool defines a bore, extending therethrough; positioning a die adjacent to the stirring tool, such that the stirring tool rotates relative to the die; and passing feedstock through the bore toward the tool distal end. ......

基本信息

专利类型:
发明专利
申请/专利号:
US17/401557
申请日期:
2021-08-13
专利申请人:
THE BOEING COMPANY
分类号:
B23K20/12
发明/设计人:
RODRIGUEZ, ROGIE I. ， SENDEROS, BRUNO ZAMORANO
权利要求: 1. A method (1000) of depositing an extrudate (112) onto a substrate (114), the method comprising steps of: rotating a stirring tool (118) about an axis of rotation (AR) while urging a tool distal end (120) of the stirring tool (118) against the substrate (114), and wherein the stirring tool (118) defines a bore (124), extending therethrough; positioning a die (128) adjacent to the stirring tool (118), such that the stirring tool (118) rotates relative to the die (128); and passing feedstock (126) through the bore (124) toward the tool distal end (120).2. The method according to claim 1, wherein the feedstock (126) forms the extrudate (112) upon exiting the tool distal end (120).3. The method (1000) according to claim 2, wherein the die (128) is positioned to inhibit movement of the extrudate (112) radially outward, relative to the axis of rotation (AR).4. The method (1000) according to claim 1, wherein the step of positioning the die (128) adjacent to the stirring tool (118) comprises positioning the die (128) such that a die distal end (130) of the die (128) protrudes axially outward a distance (D) beyond the tool distal end (120).5. The method (1000) according to claim 1, wherein the die (128) is moveable relative to the stirring tool (118) along a die axis (AD1) between at least a retracted position and an engaged position.6. The method (1000) according to claim 5, further comprising a step of moving the die (128) along the die axis (AD1) to the engaged position prior to the step of passing the feedstock (126) through the bore (124) toward the tool distal end (120).7. The method (1000) according to claim 6, wherein the step of moving the die (128) along the die axis (AD1) to the engaged position comprises actuating a pneumatic linear actuator.8. The method (1000) according to claim 6, wherein the step of moving the die (128) along the die axis (AD1) to the engaged position comprises actuating a hydraulic linear actuator.9. The method (1000) according to claim 6, wherein the step of moving the die (128) along the die axis (AD1) to the engaged position comprises actuating a mechanical linear actuator.10. The method (1000) according to claim 1, further comprising rotating the die (128) about a die axis (AD1).11. The method (1000) according to claim 10, further comprising positioning a second die (228) adjacent to the stirring tool (118), such that the stirring tool (118) rotates relative to the second die (228).12. The method (1000) according to claim 11, further comprising a step of rotating the second die (228) about a second-die axis (AD2).13. The method (1000) according to claim 12, wherein the step of rotating the second die (228) about the second-die axis (AD2) comprises rotating the second die (228) in a second direction R2 about the second-die axis (AD2), while the die (128) rotates in a first direction (R1) about the die axis (AD1).14. The method (1000) according to claim 13, wherein the second direction (R2) and the first direction (R1) are opposite to each other.15. The method (1000) according to claim 1, further comprising causing the axis of rotation (AR) of the stirring tool (118) to move relative to the substrate (114).16. The method (1000) according to claim 1, wherein: the stirring tool (118) comprises an outer surface (134), and a shortest distance (136) between the die (128) and the outer surface (134) is at most three millimeters.17. The method (1000) according to claim 1, wherein: the stirring tool (118) comprises an outer surface (134), and a shortest distance (136) between the die (128) and the outer surface (134) is at most one millimeter.18. The method (1000) according to claim 1, wherein the feedstock (126) is received in the bore (124) such that rotation of the stirring tool (118) causes corresponding rotation of the feedstock (126).19. The method (1000) according to claim 1, wherein the feedstock (126) comprises a metal or a metal alloy.20. An aircraft component, manufactured according to the method (1000) of claim 1.