Analysis of microstructure and properties of welded joints for VOLVO programme

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F23%3AN0000026" target="_blank" >RIV/25870807:_____/23:N0000026 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of microstructure and properties of welded joints for VOLVO programme

Popis výsledku v původním jazyce

The report presents the results of the analysis of 7 samples of welded joints (3 made on tubes (bellows) and 4 made on casings welded with bellows by using different weld metal, methods and parameters of welding) produced for the VOLVO programme. The goal of the analyses was to assess the quality of the individual welded joints. The results of the analyses showed problems, especially with the occurrence of voids or gas bubbles in almost all cases. The occurrence of apparently hot (crystallization) cracks in the weld metal was also quite often recorded, but on the other hand, no other types of cracks were found in these joints. The beneficial effect of reducing the total heat input to the weld during laser welding was manifested by the fact that in the heat-affected area on the weld metal-cast iron side, hardness was not as high as in the case of using MAG technology.

Název v anglickém jazyce

Analysis of microstructure and properties of welded joints for VOLVO programme

Popis výsledku anglicky

The report presents the results of the analysis of 7 samples of welded joints (3 made on tubes (bellows) and 4 made on casings welded with bellows by using different weld metal, methods and parameters of welding) produced for the VOLVO programme. The goal of the analyses was to assess the quality of the individual welded joints. The results of the analyses showed problems, especially with the occurrence of voids or gas bubbles in almost all cases. The occurrence of apparently hot (crystallization) cracks in the weld metal was also quite often recorded, but on the other hand, no other types of cracks were found in these joints. The beneficial effect of reducing the total heat input to the weld during laser welding was manifested by the fact that in the heat-affected area on the weld metal-cast iron side, hardness was not as high as in the case of using MAG technology.

Druh

V_souhrn - Souhrnná výzkumná zpráva

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2023

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Počet stran výsledku

34

Místo vydání

Ostrava

Název nakladatele resp. objednatele

FLEXIBLE METAL, s. r.o.

Verze

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