Vpliv procesnih parametrov na lasersko varjenje bakrenih folij

Zgonc, Urban (author), Jezeršek, Matija (mentor)

V diplomskem delu je obravnavano lasersko varjenje bakra ter vpliv procesnih parametrov na kakovost in geometrijo zvara. Uporabljen je bil kontinuirni vlakenski laser z valovno dolžino 1070 nm in z največjo izhodno močjo 3000 W. Eksperimentalno je bil analiziran vpliv moči laserja, hitrosti varjenja in premera laserskega snopa na širino zvara ter stabilnost parničnega režima varjenja. Na podlagi rezultatov smo določili območja parametrov za izdelavo ustreznih zvarov. Ugotovljeno je bilo tudi, da je potrebna modulacija moči laserja v začetni fazi varjenja za hitrejšo vzpostavitev parničnega režima.

• Language: Slovenian
• Keywords: bakrene folije, IR laser, varjenje, parnica, parametri
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [U. Zgonc]
• Year: 2026
• Number of pages: XI, 29 f.
• PID: 20.500.12556/RUL-185764
• UDC: 621.791.725:549.281(043.2)
• COBISS.SI-ID: 288352259
• Publication date in RUL: 20.08.2026

Secondary language

• Language: English
• Title: Influence of processing parameters on laser welding of copper foils

Abstract

This bachelor's thesis deals with laser welding of copper and the influence of process parameters on weld quality and geometry. A continuous-wave fiber laser with a wavelength of 1070 nm and a maximum output power of 3000 W was used. An experimental analysis was conducted on the influence of laser power, welding speed, and laser beam diameter on weld width and the stability of the keyhole welding. Based on the obtained results, suitable parameter ranges for high quality welding were determined. It was also found that laser power modulation in the initial phase of welding is required for faster establishment of the keyhole.

• Keywords: copper foils, IR laser, welding, keyhole, parameters