Metal expansion joints manufacturing by a mechanically assisted laser forming hybrid method – concept
Autor
Kurp, Piotr
Danielewski, Hubert
Opublikowane w
Technical Transactions
Numeracja
Vol. 119, iss. 1
Data wydania
2022
Miejsce wydania
Warsaw
Wydawca
Sciendo
Sekcja czasopisma
Mechanics
Język
angielski
eISSN
2353-737X
DOI
https://doi.org/10.37705/TechTrans/e2022008
Słowa kluczowe
laser forming, metal expansion joints, pipe treatment
Abstrakt
This paper presents the concept of metal expansion joints manufacturing using a mechanically assisted laserforming hybrid method. The metal expansion joints are made of a metal tube of an appropriate diameter and wall thickness with a combined bellow-lens shape. The concept assumes using a CO2 laser to implement such expansion joints. The laser beam heats the selected area of the rotating tube, mounted on a swivel handle on one side and the actuator handle on the other end. After reaching the plasticising temperature, the actuator compresses the element. As a result, a bellow-lens shape is formed at the plasticization area. Initial experimental studies confirmed the validity of the concept. The bellow-lens metal expansion joint (type DN20) was obtained as a final result. The presented idea and the element manufacturing method were submitted to The Patent Office of RP.
