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Home » News

Researchers developed new Micro WAAM method for smaller metal parts

News By AM Chronicle Editorial TeamFebruary 10, 20222 Mins Read
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In a recent study published in the journal Additive Manufacturing Letters researchers form  NOVA School of Science and Technology, Portugal developed a Micro WAAM method for smaller metal parts

Highlights of the study on Micro WAAM

  • A novel variant of Micro WAAM is developed.
  • Increased accuracy, while maintaining high depositions rates.
  • This can overcome some limitations of powder-bed fusion additive manufacturing processes.

Abstract
In this paper, researchers  investigate the wire and arc additive manufacturing process scale limitations utilizing a wire diameter of 250 m and a stickout of roughly 2 mm. This WAAM variation, intends to compete with laser powder bed fusion technology by allowing for the manufacture of smaller components at substantially greater deposition rates. The primary challenges associated with descaling the process are examined, and an acceptable parameter window for fabricating thin walls is offered. Several depositions were successfully completed in ASTMA 228 utilizing a wire feed speed of 75–90 mm/s, a travel speed of 7–10 mm/s, a current intensity of 16 A RMS, and a power of 35 W RMS.

About  NOVA School of Science and Technology

The NOVA School of Science and Technology (FCT NOVA) is one of the three largest and most prestigious schools of Engineering and Sciences in Portugal. It is located 15 minutes away from Lisbon, is renowned for its excellence in research, for the quality of its courses and for the large employability of its graduates (graduates, masters, doctors).

FCT NOVA, with about 8000 students, it has one of the best university campuses and is distinguished by a culture of excellent teacher-student relationship and an intense academic life with many different cultural and sport activities.

All courses are accredited by the A3ES (Agency for Assessment and Accreditation of Higher Education) and all Engineering courses are recognized by the Order of Engineers, FEANI (Federation of Professional Engineers that unites national engineering associations from 33 European Higher Education Area (EHEA) countries)  and EUR-ACE (European Accredited Engineer).

FCT NOVA is structured in 14 Departments and 15 Research Centers, offering 102 study cycles (18 Bachelor’s, 11 Integrated Master’s (no applications available for the academic year 2021/2022), 41 Master’s and 32 PhDs).

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3d printing 3D printing research additive manufacturing Micro WAAM Portugal
AM Chronicle Editorial Team

The AM Chronicle Editorial Team is a collective of passionate individuals committed to delivering insightful, accurate and engaging stories to additive manufacturing audiences worldwide.

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