公开(公告)号：US10303157B2

公开(公告)日：2019-05-28

申请号：US14981978

申请日：2015-12-29

Applicant: Industrial Technology Research Institute

Inventor： Wei-Chin Huang ,  Ching-Chih Lin ,  Tsung-Wen Tsai ,  Kuang-Po Chang ,  Chih-Hsien Wu ,  An-Li Chen

IPC: G05B19/4099

Abstract: An additive manufacturing method for a 3D object is provided and includes (a) providing a 3D digital model of the 3D object; (b) dividing the 3D digital model into repeat arrangement of at least one type of polyhedral 3D units and an X-Y plane is an acute angle or an obtuse angle; (c) cutting the 3D digital model along a Z-axis into a plurality of 2D slices; (d) defining a scanning path covering one of the 2D slices; (e) providing an energy beam to a material on a working plane along the scanning path to form a construction layer corresponding to the one of the 2D slices; and (f) repeating the steps (d) and (e) to build up the 3D object by adding a plurality of construction layers in sequence.

公开(公告)号：US11475633B2

公开(公告)日：2022-10-18

申请号：US17308413

申请日：2021-05-05

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Po-Fu Yen ,  Zhong-Yi Haung ,  Shang-Yi Lin ,  Tian-Li Yu ,  Tzong-Ming Wu ,  Tsung-Wen Tsai

IPC: G06T17/00 ,  G06T17/20 ,  G06T19/20 ,  G06F30/23 ,  G06N7/00

Abstract: A three-dimensional (3D) image dynamic correction evaluation and auxiliary design method for orthotics includes the following steps. 3D scanning information of the human body is obtained. A plurality of 2D images of the human body is obtained for identification, and the pixel values of the 2D images are calculated so as to synthesize an original 3D spine curve. The 2D images of the human body and the 3D scan information are synthesized. An image deformation prediction and correction method of body shape is used to generate a deformed body shape of the human body. A spine material properties and mechanical model prediction method is used to predict parameters of the position, direction and magnitude of the force applied by an orthotics to the human body according to the deformed body shape.

公开(公告)号：US20220163943A1

公开(公告)日：2022-05-26

申请号：US17105505

申请日：2020-11-26

Applicant: Industrial Technology Research Institute

Inventor： Wai-Kwuen Choong ,  Kai-Yuan Teng ,  Ching-Chih Lin ,  I-Chun Lai ,  Tsung-Wen Tsai ,  De-Yau Lin

IPC: G05B19/4061 ,  G06F30/20 ,  B33Y50/00

Abstract: A recoater collision prediction and calibration method for additive manufacturing and a system thereof are provided. The recoater collision prediction and calibration method includes the following steps: loading a printing image file to generate a simulated printing object according to the printing image file; performing a process thermal stress simulation on the simulated printing object to obtain a plurality of simulated deformation variables respectively corresponding to a plurality of prediction results of the simulated printing object in a vertical direction on each layer; obtaining an experimental collision height of an experimental printed object; selecting one of the plurality of simulated deformation variables according to the experimental collision height; calculating a recoater tolerance according to the one of the plurality of simulated deformation variables; calibrating a collision risk formula according to the recoater tolerance; and predicting a collision risk value between the simulated printing object and a recoater according to the collision risk formula.

公开(公告)号：US20190175363A1

公开(公告)日：2019-06-13

申请号：US15844648

申请日：2017-12-18

Applicant: Industrial Technology Research Institute

Inventor： Tzong-Ming Wu ,  Ji-Bin Horng ,  Sung-Ho Liu ,  Tsung-Wen Tsai

IPC: A61F2/58

Abstract: A limb prosthesis including a palm, a forearm, an upper arm, an elbow joint and a wrist joint is provided. The palm has a first pivot and a first lock set. The upper arm has a socket. The elbow joint connects the forearm to the upper arm. The wrist joint includes a first connecting rod connected to the forearm. The first pivot rotatably penetrates through the first connecting rod. The first lock set is locked to the first pivot. A first wedge surface of the first lock set contacts a second wedge surface of the first connecting rod. By adjusting a distance between the first lock set and the first pivot, a magnitude of a forward force between the first wedge surface and the second wedge surface is adjusted, such that the palm is fixed relative to the first connecting rod or rotatable around an axial direction perpendicular to an extending direction of the forearm.

公开(公告)号：US20170176977A1

公开(公告)日：2017-06-22

申请号：US14981978

申请日：2015-12-29

Applicant: Industrial Technology Research Institute

Inventor： Wei-Chin Huang ,  Ching-Chih Lin ,  Tsung-Wen Tsai ,  Kuang-Po Chang ,  Chih-Hsien Wu ,  An-Li Chen

IPC: G05B19/4099

CPC classification number: G05B19/4099 ,  B29C64/153 ,  B29C64/393 ,  B33Y50/00 ,  G05B2219/49023

Abstract: An additive manufacturing method for a 3D object is provided and includes (a) providing a 3D digital model of the 3D object; (b) dividing the 3D digital model into repeat arrangement of at least one type of polyhedral 3D units and an X-Y plane is an acute angle or an obtuse angle; (c) cutting the 3D digital model along a Z-axis into a plurality of 2D slices; (d) defining a scanning path covering one of the 2D slices; (e) providing an energy beam to a material on a working plane along the scanning path to form a construction layer corresponding to the one of the 2D slices; and (f) repeating the steps (d) and (e) to build up the 3D object by adding a plurality of construction layers in sequence.

公开(公告)号：US11826825B2

公开(公告)日：2023-11-28

申请号：US17385892

申请日：2021-07-26

Applicant: Industrial Technology Research Institute

Inventor： Tsung-Wen Tsai ,  Wai-Kwuen Choong ,  Tzong-Ming Wu ,  Ji-Bin Horng

IPC: B22F10/85 ,  G05B13/04 ,  B23K26/342 ,  B33Y50/00

CPC classification number: B22F10/85 ,  B23K26/342 ,  G05B13/042 ,  B33Y50/00

Abstract: A parameter analysis method and a parameter analysis system for metal additive manufacturing are provided. The parameter analysis method includes: establishing a powder bed model; simulating a multi-track melting result of the powder bed model according to a plurality of laser parameters to generate a melting model; analyzing the melting model to calculate a plurality of position divergences of a plurality of melting powders of the melting model, and defining a plurality of melting surface powders according to the position divergences; analyzing the melting surface powders to calculate a surface average curvature of the melting model; and determining a laser hatch in the laser parameters allows metal additive manufacturing to meet a quality as needed according to whether the surface average curvature is between a first curvature threshold and a second curvature threshold, the first curvature threshold being smaller than the second curvature threshold.

公开(公告)号：US11733672B2

公开(公告)日：2023-08-22

申请号：US17105505

申请日：2020-11-26

Applicant: Industrial Technology Research Institute

Inventor： Wai-Kwuen Choong ,  Kai-Yuan Teng ,  Ching-Chih Lin ,  I-Chun Lai ,  Tsung-Wen Tsai ,  De-Yau Lin

IPC: G05B19/4061 ,  G06F30/20 ,  B33Y50/00 ,  G06F113/10 ,  G06F119/08

CPC classification number: G05B19/4061 ,  B33Y50/00 ,  G06F30/20 ,  G05B2219/33286 ,  G05B2219/40339 ,  G05B2219/49008 ,  G06F2113/10 ,  G06F2119/08

Abstract: A recoater collision prediction and calibration method for additive manufacturing and a system thereof are provided. The recoater collision prediction and calibration method includes the following steps: loading a printing image file to generate a simulated printing object according to the printing image file; performing a process thermal stress simulation on the simulated printing object to obtain a plurality of simulated deformation variables respectively corresponding to a plurality of prediction results of the simulated printing object in a vertical direction on each layer; obtaining an experimental collision height of an experimental printed object; selecting one of the plurality of simulated deformation variables according to the experimental collision height; calculating a recoater tolerance according to the one of the plurality of simulated deformation variables; calibrating a collision risk formula according to the recoater tolerance; and predicting a collision risk value between the simulated printing object and a recoater according to the collision risk formula.

公开(公告)号：US20220161329A1

公开(公告)日：2022-05-26

申请号：US17385892

申请日：2021-07-26

Applicant: Industrial Technology Research Institute

Inventor： Tsung-Wen Tsai ,  Wai-Kwuen Choong ,  Tzong-Ming Wu ,  Ji-Bin Horng

IPC: B22F10/85 ,  B23K26/342 ,  G05B13/04

Abstract: A parameter analysis method and a parameter analysis system for metal additive manufacturing are provided. The parameter analysis method includes: establishing a powder bed model; simulating a multi-track melting result of the powder bed model according to a plurality of laser parameters to generate a melting model; analyzing the melting model to calculate a plurality of position divergences of a plurality of melting powders of the melting model, and defining a plurality of melting surface powders according to the position divergences; analyzing the melting surface powders to calculate a surface average curvature of the melting model; and determining a laser hatch in the laser parameters allows metal additive manufacturing to meet a quality as needed according to whether the surface average curvature is between a first curvature threshold and a second curvature threshold, the first curvature threshold being smaller than the second curvature threshold.

公开(公告)号：US10433985B2

公开(公告)日：2019-10-08

申请号：US15844648

申请日：2017-12-18

Applicant: Industrial Technology Research Institute

Inventor： Tzong-Ming Wu ,  Ji-Bin Horng ,  Sung-Ho Liu ,  Tsung-Wen Tsai

IPC: A61F2/56 ,  A61F2/58 ,  A61F2/80 ,  A61F2/50 ,  A61F2/68

Abstract: A limb prosthesis including a palm, a forearm, an upper arm, an elbow joint and a wrist joint is provided. The palm has a first pivot and a first lock set. The upper arm has a socket. The elbow joint connects the forearm to the upper arm. The wrist joint includes a first connecting rod connected to the forearm. The first pivot rotatably penetrates through the first connecting rod. The first lock set is locked to the first pivot. A first wedge surface of the first lock set contacts a second wedge surface of the first connecting rod. By adjusting a distance between the first lock set and the first pivot, a magnitude of a forward force between the first wedge surface and the second wedge surface is adjusted, such that the palm is fixed relative to the first connecting rod or rotatable around an axial direction perpendicular to an extending direction of the forearm.