Title:

G-Code, Providing the Backbone of 21st Century Advanced Manufacturing With 1960s Technology

Speaker:

Dr. Thomas Feldhausen

Affiliation:

Oak Ridge National Laboratory

When:

Monday, March 28, 2022 at 3:00:00 PM   Add to Calendar

Where:

MRDC Building, Room 4211

Host:

Christopher Saldana
christopher.saldana@me.gatech.edu
4043853735

Abstract

G-Code, a text-based programming language that provides toolpath trajectories was developed in the 1950s and 1960s is still the industry standard in communicating geometric instructions to commercial CNC systems. Today, cutting edge CNC systems are focused on converging multiple manufacturing processes into a single system. This integration of additive (deposition), subtractive (machining), and inspection techniques are commonly referred to as hybrid manufacturing. Such a system can be used for near net shape manufacturing and component repair using either similar or dissimilar materials. Integrated into a single system, transition between additive and subtractive manufacturing can occur immediately and can be leveraged to generate large components by interleaving the processes. Recent research has been shown that hybrid manufacturing can reduce overall cycle-time by up to 68%, improve average relative elongation to failure by 71%, and reduce the average relative porosity fraction by 83% when compared to traditional additive manufactured components. This seminar will discuss recent advancements in hybrid manufacturing, toolpath generation for directed energy deposition (DED), and provide examples of how these new advanced manufacturing techniques are made possible thanks to g-code.

Biography

Dr. Thomas Feldhausen is a research staff member and technical lead for hybrid manufacturing with the Manufacturing Automation and Controls Group at Oak Ridge National Laboratory. His research at the ORNL Manufacturing Demonstration Facility utilizes hybrid manufacturing, a combination of additive and subtractive (machining) manufacturing, to provide industrial solutions for component repair, tooling and tooling repair, advanced energy systems, aerospace, and automotive applications. Before working at ORNL, Thomas worked at Honeywell Federal Manufacturing in Kansas City where he focused on multi-axis additive techniques for direct ink-write technologies. Thomas received his B.S. and M.S. degrees in Mechanical Engineering from Kansas State University, and his Ph.D. in Mechanical Engineering from the Georgia Institute of Technology.