<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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 CO<sub>2</sub> 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.</p>
</abstract>

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.

Metal expansion joints manufacturing by a mechanically assisted laser forming hybrid method – concept

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

This paper presents the concept of metal expansion joints manufacturing using a mechanically assisted laserforming hybrid method. The metal expansion joints...

Metal expansion joints manufacturing by a mechanically assisted laser forming hybrid method – concept

Published Online: Jun 06, 2022

Page range: -

Received: Dec 03, 2021

Accepted: Jun 01, 2022

DOI: https://doi.org/10.37705/TechTrans/e2022008

Keywords
laser forming, metal expansion joints, pipe treatment

© 2022 Piotr Kurp et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Metal expansion joints manufacturing by a mechanically assisted laser forming hybrid method – concept

Published Online: Jun 06, 2022

Page range: -

Received: Dec 03, 2021

Accepted: Jun 01, 2022

DOI: https://doi.org/10.37705/TechTrans/e2022008

Keywordslaser forming, metal expansion joints, pipe treatment

© 2022 Piotr Kurp et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Keywords
laser forming, metal expansion joints, pipe treatment