公开(公告)号：US11498157B2

公开(公告)日：2022-11-15

申请号：US16778870

申请日：2020-01-31

Applicant: GM Global Technology Operations LLC

Inventor： Pei-Chung Wang ,  Spyros P Mellas ,  Miguel A Saez ,  John P Spicer

IPC: B23K26/08 ,  B23K9/095 ,  B23K31/12 ,  B23K9/127

Abstract: A system and method of enhanced automated welding of a first workpiece and a second workpiece are provided. The method comprises providing a system for intelligent robot-based welding of the first workpiece and the second workpiece. The method further comprises determining a geometrical location of the first workpiece and the second workpiece to be welded at a welding sequence based a predetermined process variable. The method further comprises adjusting the predetermined process variable based on the geometrical location of the first and second workpieces to define an actual process variable. The method further comprises welding a first portion of the first and second workpieces with the actual process variable to define a first welded portion. The method further comprises determining a weld quality of the first welded portion.

公开(公告)号：US11007713B2

公开(公告)日：2021-05-18

申请号：US15497832

申请日：2017-04-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John P Spicer ,  Jason J Nolte ,  Thomas A. Perry ,  Blair E Carlson ,  Anil K Sachdev ,  Hyungmin Chae ,  Mark A Smith

IPC: B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F12/00 ,  B29C64/241 ,  B29C64/171 ,  B29K105/00

Abstract: An additive manufacturing system includes a powder delivery system, an area scanning laser, a build chamber, and a controller. The powder delivery system provides a predetermined amount of powder material to the build chamber, and includes a material dispenser, a dispensing head, and a scraper. The scanning laser selectively sinters the powder material, and includes a mirror galvanometer for raster scanning. The build chamber has an annular configuration, and includes an inner annular wall that defines a central portion disposed inward of the build chamber. A portion of the delivery system and the laser are located in the central portion. The chamber continuously rotates under the head and under a sintering zone generated by the laser as the delivery system continuously dispenses the material. The laser continuously raster scans the material at the sintering zone in a raster pattern to sinter a layer of material directly to a preceding layer.

公开(公告)号：US09921582B2

公开(公告)日：2018-03-20

申请号：US15133287

申请日：2016-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John P Spicer ,  Ningjian Huang ,  Greg Vanderheyden ,  James O'Dell

IPC: G05D1/00 ,  B62B5/00

CPC classification number: G05D1/0088 ,  B62B5/0083 ,  G05D1/0295 ,  G05D2201/0216

Abstract: An automated guided vehicle system may include a plurality of automated guided vehicles arranged in a predetermined relationship with respect to each other for supporting a payload. Each of the automated guided vehicles has a plurality of rollers extending from the automated guided vehicle and engaging a ground surface. Furthermore, at least one locator extends from the automated guided vehicle and engages the payload. Each of the automated guided vehicles also has an on-board controller arranged within a housing thereof, with one on-board controller acting as a master controller and the remaining of the on-board controllers acting as slave controllers. The master controller communicates with the slave controllers to maintain position and speed control of each automated guided vehicle in both a lateral and a longitudinal direction. Furthermore, the slave controllers send feedback information to the master controller.