A new approach to flux deposition for brazing aluminium by low pressure cold spraying

• Autorzy: Wojdat Tomasz , Winnicki Marcin , Pabian Jarosław

Identyfikatory

DOI

10.2478/msp-2022-0048

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of study on the possibility of Nocolok flux deposition to aluminium substrates using the low-pressure cold gas spraying (LPCS) method. An innovative method of applying flux in the form of a powder without organic adhesive additives was proposed, allowing strict control of the deposited material. The influence of the flux powder feeding rate (PFR – 4.5 g/min, 6.3 g/min and 8.5 g/min) on the efficiency of the brazing process of AA3003 aluminium alloy plates was investigated. The results of energy dispersive spectrometry (EDS) analysis of the deposited flux coatings are presented for various process parameters. The wettability tested by spreading the B-AlSi12 filler metal on flux-covered aluminium substrates increased significantly with increasing PFR – the contact angle decreased from 21.0° to 4.6°. Microstructure analysis confirmed the high quality of the brazed joints, which were devoid of braze incompatibilities.

Słowa kluczowe

EN

flux deposition; low-pressure cold spraying; aluminium alloy; brazing; flux powder; brazed joint; B-AlSi12 filler metal

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2022
• Tom: Vol. 40, No. 4
• Strony: 114--124
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Wojdat Tomasz

• Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Wrocław, Poland

autor

Winnicki Marcin

• Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Wrocław, Poland

autor

Pabian Jarosław

• Mahle Behr Corp., Ostrow Wielkopolski, Poland

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).