公开(公告)号：US11975489B2

公开(公告)日：2024-05-07

申请号：US17535546

申请日：2021-11-24

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu Zhao ,  Sandeep Patil ,  Cheng Sun ,  Rihan Hai

IPC: B29C64/314 ,  B29C64/129 ,  B29C64/232 ,  B29C64/245 ,  B29C64/264 ,  B33Y30/00 ,  B33Y40/10

CPC classification number: B29C64/314 ,  B29C64/129 ,  B29C64/232 ,  B29C64/245 ,  B29C64/264 ,  B33Y30/00 ,  B33Y40/10

Abstract: A 3D printing system includes a tank containing a liquid photopolymer resin. The tank includes an optically transparent window through which light is configured to pass. A heat exchanger is connected to the tank and is configured to cool the liquid polymer resin. A transducer is connected to the tank. The transducer is configured to emit an acoustic wave toward the optically transparent window.

公开(公告)号：US11660815B1

公开(公告)日：2023-05-30

申请号：US17535540

申请日：2021-11-24

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu Zhao ,  Sandeep Patil ,  Cheng Sun ,  Rihan Hai

IPC: B29C64/264 ,  B29C64/129 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/232 ,  B29C64/30 ,  B33Y40/00

CPC classification number: B29C64/264 ,  B29C64/129 ,  B29C64/232 ,  B29C64/245 ,  B29C64/30 ,  B33Y30/00 ,  B33Y40/00

Abstract: A 3D printing system includes a tank containing a liquid photopolymer resin. A textured surface is connected to the tank. The textured surface is configured such that light passes therethrough and into the liquid polymer resin. A transducer is connected to the tank. The transducer is configured to emit an acoustic wave toward the textured surface.

公开(公告)号：US12134230B2

公开(公告)日：2024-11-05

申请号：US17463479

申请日：2021-08-31

Applicant: Nissan North America, Inc.

Inventor： Cheng Sun ,  Rihan Hai ,  Nanzhu Zhao ,  Sandeep Patil

IPC: B33Y10/00 ,  B29C64/124 ,  B29C64/277 ,  B29C64/30 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y50/02

Abstract: A 3D printing system includes a vat containing a liquid photopolymer resin and a rigid base on which an object is configured to be printed. A control arm connected to the rigid base is configured to move the rigid base relative to the vat. A first light source is configured to emit light to the vat to form the object on the rigid base. A second light source is configured to emit light on the object externally of the liquid photopolymer resin in the vat to cure the object.