Niezgodności złączy lutowanych spoiwami twardymi i przyczyny ich powstawania

Winiowski, A.

doi:10.26628/ps.v84i6.293

Cited by 2 publications

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“…In turn, metallic inclusions are usually of external nature, e.g. from fixing or fastening elements [1]. One of the specimens was immersed in water (after the completion of the brazing process and the solidification of the filler metal), thus significantly increasing the rate of cooling.…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…Melting points of filler metals determine the terminology of the aforementioned joining methods, i.e. soldering is a process taking place below 450°C, whereas brazing is performed at temperatures exceeding 450°C [1]. The permanent development of soldering and brazing translates into the growing popularity of these techniques in various industrial sectors.…”

Section: Introductionmentioning

confidence: 99%

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Types of Surface Impurities versus the Quality of Brazed Joints

Tomków¹,

Haras²

2018

eBIS

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Brazing is one of the primary joining processes increasingly often applied in industry. Because of their mechanical properties, overlap joints are particularly popular when making brazed structures. The use of brazed joints in structures of critical importance requires that particular attention be paid to joint quality, e.g. by the appropriate cleaning of surfaces to be joined. The article presents results of non-destructive tests of brazed joints made in steel S235JRG2. Surfaces used in the tests were deliberately contaminated to simulate the presence of welding imperfections. Afterwards, the test specimens were subjected to non-destructive (visual and radiographic) tests aimed to determine the effect of surface impurities on the quality of brazed joints.

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Section: Experimental Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Types of Surface Impurities versus the Quality of Brazed Joints

Tomków¹,

Haras²

2018

eBIS

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Determinants of the quality of brazed joints of nickel-based superalloys

Strzelczak

Lisiecka

2017

Production Engineering Archives

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In the aerospace industry, passenger safety depends on proper quality control at each production stage. The main responsibility for the correct operation of the aircraft lies within a gas turbine. A proper and rigorous selection of the gas turbine construction material is required, and in a further step, the method of joining the construction parts. Nickel superalloys due to the high heat resistance, strength and creep resistance at high temperatures, toughness and corrosion resistance, are very often used for the construction of a gas turbine engine. In the next step, the selection of joining method is necessary. This method must be able to achieve high-quality connections, resistant to work at high temperatures and corrosive environments. The most effective bonding method that meets the above conditions is brazing. In this study non-destructive (visual) test and destructive (metallographic) test of brazed joint of Inconel 718 and Inconel 625 were conducted.

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Niezgodności złączy lutowanych spoiwami twardymi i przyczyny ich powstawania

Abstract: Omówiono rodzaje niezgodności lutowniczych oraz fizykochemiczne i technologiczne przyczyny ich powstawania. Scharakteryzowano również normę PN-EN ISO 18279 Lutowanie twarde-niezgodności w złączach lutowanych na twardo.

Cited by 2 publications

References 0 publications

Types of Surface Impurities versus the Quality of Brazed Joints

Types of Surface Impurities versus the Quality of Brazed Joints

Determinants of the quality of brazed joints of nickel-based superalloys

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