Evaluation of Geometrical Precision and Surface Roughness Quality for the Additively Manufactured Radio Frequency Quadrupole Prototype

13th International Particle Accelerator Conference (IPAC 2022) : Conference Proceedings 2022
Toms Torims, Andris Ratkus, Guntis Pikurs, Dagnija Kroģere, Maurizio Vretenar, Ahmed Cherif, Samira Gruber, Elena Lopez, Matteo Pozzi, Maurizio Foppa Pedretti, Michael Thielmann, Philipp Wagenblast, Maurizio Vedani, Nicolas Delerue, Tauno Otto

A multidisciplinary collaboration within the I.FAST project teamed-up to develop additive manufacturing (AM) technology solutions for accelerators. The first prototype of an AM pure-copper radio frequency quadrupole (RFQ) has been produced, corresponding to 1/4 of a 4-vane RFQ*. It was optimised for production with state-of-the-art laser powder bed fusion technology. Geometrical precision and roughness of the critical surfaces were measured. Alt-hough the obtained values were beyond standard RFQ specifications, these first results are promising and con-firmed the feasibility of AM manufactured complex cop-per accelerator cavities. Therefore, further post-processing trials have been conducted with the sample RFQ to im-prove surface roughness. Algorithms for the AM techno-logical processes have also been improved, allowing for higher geometrical precision. This resulted in the design of a full 4-vane RFQ prototype. At the time of the paper submission the full-size RFQ is being manufactured and will undergo through the stringent surface quality meas-urements. This paper is discussing novel technological developments, is providing an evaluation of the obtained surface roughness and geometrical precision as well as outlining the potential post-processing scenarios along with future tests plans.

Atslēgas vārdi
additive manufacturing, Radio Frequency Quadrupole, pure copper
DOI
10.18429/JACoW-IPAC2022-TUOXSP3
Hipersaite
https://accelconf.web.cern.ch/ipac2022/papers/tuoxsp3.pdf

Torims, T., Ratkus, A., Pikurs, G., Kroģere, D., Vretenar, M., Cherif, A., Gruber, S., Lopez, E., Pozzi, M., Pedretti, M., Thielmann, M., Wagenblast, P., Vedani, M., Delerue, N., Otto, T. Evaluation of Geometrical Precision and Surface Roughness Quality for the Additively Manufactured Radio Frequency Quadrupole Prototype. No: 13th International Particle Accelerator Conference (IPAC 2022) : Conference Proceedings, Taizeme, Bangkoka, 12.-17. jūnijs, 2022. Geneva: JACoW Publishing, 2022, 787.-791. lpp. e-ISBN 978-3-95450-227-1. e-ISSN 2732-5121. Pieejams: doi:10.18429/JACoW-IPAC2022-TUOXSP3

Publikācijas valoda
English (en)