当前申请(专利权)人地址：
Via I Maggio, 99,Rivalta di Torino,IT
摘要：
An additive manufacturing system for forming a component including a compression rig including a compression head supporting a top compression device applying a compressive load onto a top surface of the component, a pair of temperature sensors positioned on opposite sides of the top compression device and detecting a temperature of the top surface of the component, and a pair of distance sensors positioned on opposite sides of the top compression device and detecting a distance to the top surface of the component, and a controller configured to adjust a position of the compression rig and a load applied by the top compression device based on at least one of the detected temperatures and distances.
权利要求：
1. An additive manufacturing system (100) for forming a component (102), the additive manufacturing system (100) comprising: a compression rig (140) comprising a compression head (246) supporting a top compression device (312) applying a compressive load onto a top surface (102c) of the component (102), a temperature sensor (506, 508) detecting a temperature of the top surface (102c) of the component (102), and a pair of distance sensors (510, 512) positioned on opposite sides of the top compression device (312) and detecting a distance to the top surface (102c) of the component (102); and a controller (150) configured to adjust a position of the compression rig (140) and a load applied by the top compression device (312) based on the detected temperatures and distances.
2. The additive manufacturing system (100) of claim 1, wherein the temperature sensor (506, 508) comprises: a first temperature sensor (506) positioned in front of the top compression device (312) and detecting a first temperature of a first portion of the top surface (102c) of the component (102); and a second temperature sensor (508) positioned behind the top compression device (312) and detecting a second temperature of a second portion of the top surface (102c) of the component (102).
3. The additive manufacturing system (100) of claim 2, wherein the controller (150) is configured to compute an average temperature based on the first temperature and the second temperature.
4. The additive manufacturing system (100) of claim 3, further comprising: an actuator (212) for positioning the compression head (246) relative to a deposition head (122), wherein the controller (150) is configured to: send a signal to the actuator (212) to move the compression head (246) closer to the deposition head (122) in response to determining that the average temperature is below a predetermined temperature range; and send a signal to the actuator (212) to move the compression head (246) farther from the deposition head (122) in response to determining that the average temperature exceeds the predetermined temperature range.
5. The additive manufacturing system (100) of any one of claims 1-4, wherein the pair of distance sensors (510, 512) comprises: a first distance sensor (510) positioned in front of the top compression device (312) and detecting a first distance to a first portion of the top surface (102c) of the component (102); and a second distance sensor (512) positioned behind the top compression device (312) and configured to detect a second distance to a second portion of the top surface (102c) of the component (102).
6. The additive manufacturing system (100) of claim 5, wherein the controller (150) is configured to compute a strain in the component (102) based on the first distance and the second distance.
7. The additive manufacturing system (100) of claim 6, further comprising: a linear actuator (231) for positioning the top compression device (312) relative to the top surface (102c), wherein the controller (150) is configured to: send a signal to the linear actuator (231) to move the top compression device (312) closer to the top surface (102c) in response to determining that the strain is below a predetermined strain range; and send a signal to the linear actuator (231) to move the top compression device (312) farther from the top surface (102c) in response to determining that the strain exceeds the predetermined strain range.
8. An additive manufacturing system (100) for forming a component (102), the additive manufacturing system (100) comprising: a rotary build table (104) rotatable about a vertical axis of the rotary build table (104), the rotary build table (104) defining a horizontal build surface on which the component (102) is built; a deposition assembly (120) having a deposition head (122) through which melted feedstock material is deposited; a compression rig (140) comprising a compression head (246) supporting a top roller (312) applying a compressive load onto a top surface (102c) of the component (102), a pair of temperature sensors (506, 508) positioned on opposite sides of the top roller (312) and detecting a temperature of the top surface (102c) of the component (102), and a pair of distance sensors (510, 512) positioned on opposite sides of the top roller (312) and detecting a distance to the top surface (102c) of the component (102); and a controller (150) configured to adjust a position of the compression rig (140) and a load applied by the top roller (312) based on the detected temperatures and distances.
9. The additive manufacturing system (100) of claim 8, wherein the pair of temperature sensors (506, 508) comprises: a first temperature sensor (506) positioned in front of the top roller (312) and detecting a first temperature of a first portion of the top surface (102c) of the component (102); and a second temperature sensor (508) positioned behind the top roller (312) and detecting a second temperature of a second portion of the top surface (102c) of the component (102).
10. A method of forming a component (102) by additive manufacturing, the method comprising: applying a compressive load onto a top surface (102c) of the component (102) by a top roller (312) of a compression rig (140); and adjusting a position of the compression rig (140) by performing at least one of: moving the compression rig (140) farther from a deposition assembly (120) in response to determining that an average temperature of a first temperature of the top surface (102c) in front of the top roller (312) and a second temperature of the top surface (102c) behind the top roller (312) exceeds a predetermined temperature range; and moving the compression rig (140) closer to the deposition assembly (120) in response to determining that the average temperature is less than the predetermined temperature range.
11. The method of claim 10, wherein the first temperature is detected by a first temperature sensor (506, 508) positioned in front of the top roller (312) and the second temperature is detected by a second temperature sensor (506, 508) position behind the top roller (312).
12. The method of claim 11, further comprising: adjusting the compressive load applied by the top roller (312) by performing at least one of: moving the top roller (312) farther from the top surface (102c) in response to determining that a strain based on a first distance to the top surface (102c) in front of the top roller (312) and a second distance to the top surface (102c) behind the top roller (312) exceeds a predetermined strain range; and moving the top roller (312) closer to the top surface (102c) in response to determining that a strain based on a first distance to the top surface (102c) in front of the top roller (312) and a second distance to the top surface (102c) behind the top roller (312) is less than the predetermined strain range.
13. The method of claim 12, wherein the first distance is detected by a first distance sensor (510) positioned in front of the top roller (312) and the second distance is detected by a second distance sensor (512) position behind the top roller (312).
14. The method of any one of claims 10-13, wherein the adjusting a position of the compression rig (140) comprises operating an actuator (212) to move the compression rig (140) in a lateral direction.
15. The method of any one of claims 12-13, wherein adjusting the compressive load of the top roller (312) comprises operating a linear actuator (231) to move the top roller (312) in a vertical direction.