Technology and Properties of Peripheral Laser-Welded Micro-Joints
This article presents the results of research on the technology and peripheral properties of laser-welded micro-couplings. The aim of this research was to determine the characteristics of properly made joints and to indicate the range of optimal parameters of the welding process. Thin-walled AISI 31...
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doaj-c2b04d4186ac40a58074214a617136232021-06-30T23:53:41ZengMDPI AGMaterials1996-19442021-06-01143213321310.3390/ma14123213Technology and Properties of Peripheral Laser-Welded Micro-JointsSzymon Tofil0Hubert Danielewski1Grzegorz Witkowski2Krystian Mulczyk3Bogdan Antoszewski4Laser Research Centre, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, PolandLaser Research Centre, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, PolandLaser Research Centre, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, PolandLaser Research Centre, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, PolandLaser Research Centre, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, PolandThis article presents the results of research on the technology and peripheral properties of laser-welded micro-couplings. The aim of this research was to determine the characteristics of properly made joints and to indicate the range of optimal parameters of the welding process. Thin-walled AISI 316L steel pipes with diameters of 1.5 and 2 mm used in medical equipment were tested. The micro-welding process was carried out on a SISMA LM-D210 Nd:YAG laser. The research methods used were macroscopic and microscopic analyses of the samples, and assessment of the distribution of elements in the weld, the distribution of microhardness and the tear strength of the joint. As a result of the tests, the following welding parameters are recommended: a pulse energy of 2.05 J, pulse duration of 4 ms and frequency of 2 Hz, beam focusing to a diameter of 0.4 mm and a rotation speed of 0.157 rad/s. In addition, the tests show good joint properties with a strength of more than 75% of the thinner pipe, uniform distribution of alloying elements and a complex dendritic structure characteristic of pulse welding.https://www.mdpi.com/1996-1944/14/12/3213laser micro-weldingcryosurgical probebutt weldthin tube welding |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Szymon Tofil Hubert Danielewski Grzegorz Witkowski Krystian Mulczyk Bogdan Antoszewski |
spellingShingle |
Szymon Tofil Hubert Danielewski Grzegorz Witkowski Krystian Mulczyk Bogdan Antoszewski Technology and Properties of Peripheral Laser-Welded Micro-Joints Materials laser micro-welding cryosurgical probe butt weld thin tube welding |
author_facet |
Szymon Tofil Hubert Danielewski Grzegorz Witkowski Krystian Mulczyk Bogdan Antoszewski |
author_sort |
Szymon Tofil |
title |
Technology and Properties of Peripheral Laser-Welded Micro-Joints |
title_short |
Technology and Properties of Peripheral Laser-Welded Micro-Joints |
title_full |
Technology and Properties of Peripheral Laser-Welded Micro-Joints |
title_fullStr |
Technology and Properties of Peripheral Laser-Welded Micro-Joints |
title_full_unstemmed |
Technology and Properties of Peripheral Laser-Welded Micro-Joints |
title_sort |
technology and properties of peripheral laser-welded micro-joints |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-06-01 |
description |
This article presents the results of research on the technology and peripheral properties of laser-welded micro-couplings. The aim of this research was to determine the characteristics of properly made joints and to indicate the range of optimal parameters of the welding process. Thin-walled AISI 316L steel pipes with diameters of 1.5 and 2 mm used in medical equipment were tested. The micro-welding process was carried out on a SISMA LM-D210 Nd:YAG laser. The research methods used were macroscopic and microscopic analyses of the samples, and assessment of the distribution of elements in the weld, the distribution of microhardness and the tear strength of the joint. As a result of the tests, the following welding parameters are recommended: a pulse energy of 2.05 J, pulse duration of 4 ms and frequency of 2 Hz, beam focusing to a diameter of 0.4 mm and a rotation speed of 0.157 rad/s. In addition, the tests show good joint properties with a strength of more than 75% of the thinner pipe, uniform distribution of alloying elements and a complex dendritic structure characteristic of pulse welding. |
topic |
laser micro-welding cryosurgical probe butt weld thin tube welding |
url |
https://www.mdpi.com/1996-1944/14/12/3213 |
work_keys_str_mv |
AT szymontofil technologyandpropertiesofperipherallaserweldedmicrojoints AT hubertdanielewski technologyandpropertiesofperipherallaserweldedmicrojoints AT grzegorzwitkowski technologyandpropertiesofperipherallaserweldedmicrojoints AT krystianmulczyk technologyandpropertiesofperipherallaserweldedmicrojoints AT bogdanantoszewski technologyandpropertiesofperipherallaserweldedmicrojoints |
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1721350256728211456 |