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Title: Torch End-Effector and TIG Electrode Changeout Design for a TIG Welding Robot Used in Metal Big Area Additive Manufacturing

Abstract

Metal Big Area Additive Manufacturing (mBAAM) is a promising approach to large-scale metal additive manufacturing (AM) or 3D printing. The mBAAM system uses an arc-based wire-fed welding robot to build metal parts. A multi-degree-of-freedom robotic arm is known for its extensive range of motion and reliable tool handling. Attaching a torch end-effector to a robotic arm gives it welding capabilities; however, this decreases the motion range and dynamics of the robot. As a result, build volume and printing accuracy are decreased. Additionally, only a portion of time is spent printing in an arc-based process. Maintenance leads to downtime on the system. In a tungsten inert gas (TIG)-based process, the torch electrode wears out over time and must be changed to avoid defective deposition. This paper proposes an approach for a compact torch end-effector to improve the robot’s build volume. This paper also proposes an approach to reducing non-printing process time by designing and implementing a semi-automated electrode changing system.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [3];  [2];  [2]
  1. ORNL
  2. University of Tennessee, Knoxville (UTK)
  3. The University of Tennessee, Knoxville
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1557540
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2018 International Mechanical Engineering Congress & Exposition (IMECE 2018) - Pittsburgh, Pennsylvania, United States of America - 11/9/2018 10:00:00 AM-11/15/2018 10:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Masuo, Christopher, Nycz, Andrzej, Noakes, Mark, Bell, Jared, Killian, Justin, Oakley, Chandler, and Hamel, William R. Torch End-Effector and TIG Electrode Changeout Design for a TIG Welding Robot Used in Metal Big Area Additive Manufacturing. United States: N. p., 2018. Web. doi:10.1115/IMECE2018-86726.
Masuo, Christopher, Nycz, Andrzej, Noakes, Mark, Bell, Jared, Killian, Justin, Oakley, Chandler, & Hamel, William R. Torch End-Effector and TIG Electrode Changeout Design for a TIG Welding Robot Used in Metal Big Area Additive Manufacturing. United States. doi:10.1115/IMECE2018-86726.
Masuo, Christopher, Nycz, Andrzej, Noakes, Mark, Bell, Jared, Killian, Justin, Oakley, Chandler, and Hamel, William R. Thu . "Torch End-Effector and TIG Electrode Changeout Design for a TIG Welding Robot Used in Metal Big Area Additive Manufacturing". United States. doi:10.1115/IMECE2018-86726. https://www.osti.gov/servlets/purl/1557540.
@article{osti_1557540,
title = {Torch End-Effector and TIG Electrode Changeout Design for a TIG Welding Robot Used in Metal Big Area Additive Manufacturing},
author = {Masuo, Christopher and Nycz, Andrzej and Noakes, Mark and Bell, Jared and Killian, Justin and Oakley, Chandler and Hamel, William R.},
abstractNote = {Metal Big Area Additive Manufacturing (mBAAM) is a promising approach to large-scale metal additive manufacturing (AM) or 3D printing. The mBAAM system uses an arc-based wire-fed welding robot to build metal parts. A multi-degree-of-freedom robotic arm is known for its extensive range of motion and reliable tool handling. Attaching a torch end-effector to a robotic arm gives it welding capabilities; however, this decreases the motion range and dynamics of the robot. As a result, build volume and printing accuracy are decreased. Additionally, only a portion of time is spent printing in an arc-based process. Maintenance leads to downtime on the system. In a tungsten inert gas (TIG)-based process, the torch electrode wears out over time and must be changed to avoid defective deposition. This paper proposes an approach for a compact torch end-effector to improve the robot’s build volume. This paper also proposes an approach to reducing non-printing process time by designing and implementing a semi-automated electrode changing system.},
doi = {10.1115/IMECE2018-86726},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

Conference:
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