Engineering Journal: Science and InnovationELECTRONIC SCIENCE AND ENGINEERING PUBLICATION
Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Article

Quality analysis of the spacecraft foil electric heater meander manufactured using laser radiation

Published: 21.09.2022

Authors: Vyatlev P.A., Shemanov A.G., Gorny S.G., Yudin K.V., Grigoriev P.S., Mishin Yu.N.

Published in issue: #9(129)/2022

DOI: 10.18698/2308-6033-2022-9-2208

Category: Aviation and Rocket-Space Engineering | Chapter: Design, construction and production of aircraft

The article presents a brief review of the photolithographic technology features used in manufacture of foil electric heaters for spacecraft. Potential advantages of laser technology for the foil electric heater formation are demonstrated. Using laser radiation, a full-fledged meander was manufactured from constantan foil on flexible substrate of aramid fabric impregnated with the EP-730 varnish as a blank for a foil electric heater of the spacecraft thermal control system. The degree of constantan evaporation between the current conductive tracks, as well as integrity and dielectric properties of the substrate, were evaluated. Results of the obtained samples study by the methods of spectral analysis, visual and optical control and measurement of the insulation resistance are provided. Conclusions present an assessment of advantages in using laser processing in the heating element formation, namely, reduction in the number of technological operations, decrease in labor intensity, increase in accuracy of the design geometry and improvement in the personnel labor protection conditions.


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