Additive manufacturing of Invar parts by solvent jetting on granule beds

Carreño-Morelli, Efrain (School of Engineering, HES-SO Valais-Wallis, HEI, HES-SO // University of Applied Sciences Western Switzerland) ; Rodriguez-Arbaizar, Mikel (School of Engineering, HES-SO Valais-Wallis, HEI, HES-SO // University of Applied Sciences Western Switzerland) ; Girard, Hervé (School of Engineering, HES-SO Valais-Wallis, HEI, HES-SO // University of Applied Sciences Western Switzerland)

Invar Fe36Ni parts are produced by the “solvent on granule” 3D-Printing technique. Both elementary and prealloyed powders are used. A special purpose tabletopmachine, designed and built in a previous development, is used to print green parts, which are subsequently debinded and sintered in a muffle furnace. Prismatic specimens for thermal expansion tests and metallographicobservation are produced. In addition, benchmark parts are printed to test dimensional accuracy and shape preservation. The results show the feasibility of producing low thermal expansion coefficient material, which matches the target value of 1ppm/°Creported for the wrought alloy.


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Keywords:
Conference Type:
full paper
Faculty:
Ingénierie et Architecture
School:
HEI-VS
Institute:
Institut Systèmes industriels
Subject(s):
Ingénierie
Publisher:
Bilbao, Spain, 14-18 October 2018
Date:
2018-10
Bilbao, Spain
14-18 October 2018
Pagination:
6 p.
Published in:
Proceedings of Euro PM2018 congress & exhibition, 14-18 October 2018, Bilbao, Spain
ISBN:
978-1-899072-50-7
External resources:
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2019-04-23, last modified 2019-04-23

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