zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Miha Gruntar (Author), Damjan Klobčar (Mentor), Uroš Trdan (Co-mentor)

Abstract

V industriji se vedno bolj razvijajo različne tehnike spajanja bakrovih zlitin. Ena izmed teh je tudi lasersko varjenje. Zaključna naloga temelji na ugotovitvi, ali je lasersko varjenje primerna metoda za spajanje bakrenih površin in ali lahko nadomesti dosedanjo metodo spajanja s spajkanjem. V delu bo obravnavano lasersko varjenje bakrenih površin rotorja elektromotorja, ki je bilo izvedeno z uporabo vlakenskega laserja. Dobljeni so bili najprimernejši varilni parametri laserskega stroja, izvedena je bila vizualna kontrola zvarnih spojev ter kontrola globine prevaritve. Dosežena globina prevaritve pri prvi kombinaciji varilnih parametrov je bila 481 𝜇m, pri drugi pa 368 𝜇m. Varilni parametri laserja pri prvi kombinaciji so bili: maksimalna moč pulza: 6 kW, čas trajanja pulza: 6 ms, frekvenca pulzov: 10 Hz , pri drugi pa: maksimalna moč pulza: 5 kW, čas trajanja pulza: 10 ms, frekvenca pulzov: 10 Hz.

Keywords

diplomske naloge;lasersko varjenje;baker in bakrove zlitine;varivost bakrovih zlitin;spajkanje;vlakenski laser;laserski parametri;vizualna kontrola zvara;globina prevaritve;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [M. Gruntar]
UDC: 621.791.725:669.35(043.2)
COBISS: 163437059 Link will open in a new window
Views: 136
Downloads: 22
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Other data

Secondary language: English
Secondary title: Laser welding of electrical contacts
Secondary abstract: In the industry, various techniques for joining copper alloys are increasingly being developed, and one of these is laser welding. This thesis is based on determining whether laser welding is a suitable method for joining copper surfaces and whether it can replace the existing soldering method. The thesis focuses on laser welding of copper surfaces in the rotor of an electric motor, which was performed using a fiber laser. The optimal welding parameters for the laser machine were obtained, and both visual inspection of the weld joints and depth of penetration control were conducted. The achieved penetration depth for the first combination of welding parameters was 481 𝜇m, and for the second combination, it was 368 𝜇m. The laser welding parameters for the first combination were: maximum pulse power: 6 kW, pulse duration: 6 ms, pulse frequency: 10 Hz. For the second combination: maximum pulse power: 5 kW, pulse duration: 10 ms, pulse frequency: 10 Hz.
Secondary keywords: thesis;laser welding;copper and copper alloys;weldability of copper alloys;soldering;fiber laser;laser parameters;visual testing of welds;penetration depth;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XIII, 42 f.
ID: 19867825
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