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an industrial expert talk on “Latest process developments in Arc-wire directed energy deposition for printing large-sized alloy components”
Speaker Name
Mr Oehlinger Marcel
May 6, 2026
03:00 PM
Prof. E G Ramachandran seminar room or KCB-222
|SPEAKER BIO
Mr Oehlinger Marcel is a certified International Welding Specialist working as a technical expert in the "Technical Competence Center" at Fronius International GmbH. His specific area of expertise is DED with Welding Arc and Wire. He has got hands on experience in process set up, parameter optimization, and quality assessment in this area for practical part printing in the "Prototyping Center" of Fronius International GmbH, Austria. Mr Oehlinger is experienced in working with automated and robotic systems to support efficient, repeatable metal deposition. Known for analytical thinking, precision, and commitment to continuous improvement, he has been involved in process development and assessing the automation requirement for printing of larger parts along with feasibility study and prototype manufacturing since 2024.
The past 10 years experience of Mr Oehlinger is all about welding application engineering, robotic welding programming, designing jigs and fixtures and welding training.
|ABSTRACT
Last 15 years have seen comprehensive work by researchers on the process and relevance of "Metal Additive Manufacturing through Directed Energy Deposition with welding arc and wire" as a prominent rapid prototyping process for parts with larger dimensions. This research has been carried out with specific attention to the characterization of the printed specimens vis-a-vis properties of conventionally manufactured metal parts.
Today, this process has graduated to being used for printing actual parts with large dimensions in the western part of the world and now will be done in India. With this evolving requirement of printing simpler shapes to complex geometries or bigger parts, the biggest challenge is to print the part within defined dimensional tolerances with minimum distortion and flawless fusion throughout the dimensions. This development demands following important things to meet the final objective:
· Enhanced stability of the welding process
· Repeatability and even layer built-up
· Real time location feedback
· Adaptive control over heat input and
· Safe connection at the starting point.
The design of the system used needs to be upgraded with latest features required to make the process more effective and efficient while meeting the requirements. Fronius has upgraded the CMT process with features meeting these requirements and the same will be explained in the technical talk.
