diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo
Blaž Dolinar (Author), Damjan Klobčar (Mentor), Roman Šturm (Co-mentor)

Abstract

V avtomobilski industriji se pogosto uporablja uporovno točkovno varjenje za spajanje karoserijskih delov, vedno več pa tudi hibridni postopki spajanja. Primerjali smo uporovno točkovno zvarjene, lepljene in hibridno spajane vzorce ter opravili natezno-strižni preizkus ter vizualno in metalografsko analizo. Optimalni varilni parametri pločevine so varilni tok 7,5 kA, čas varjenja 400 ms in sila stiskanja 2,5 kN. Zaradi slabe adhezijske vezi lepljeni spojih niso dosegli željene trdnosti. Hibridni spojih imajo manjšo natezno-strižno trdnost kot varjeni, za kar je krivo lepilo na mestu varjenja.

Keywords

diplomske naloge;uporovno točkovno varjenje;lepljenje;primerjava spojev;hibridni spoji;pocinkana pločevina;priprava varjencev;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [B. Dolinar]
UDC: 621.791.76(043.2)
COBISS: 16631835 Link will open in a new window
Views: 1061
Downloads: 326
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Other data

Secondary language: English
Secondary title: Analysis of joints made using resistance spot welding and adhesive bounding
Secondary abstract: Resistance spot welding is in the automotive industry often used for welding body parts as well as hybrid bonding which is lately more and more often in use. We compared resistance spot welded, hybrid and adhesive bonded joints and did a visual inspection, tensile-shear test and metallographic analysis. Optimal welding parameters of sheet metal are welding current of 7.5 kA, welding time 400 ms and welding force of 2.5 kN. Due to poor adhesion, adhesive joints did not achieve the desired strength. Hybrid joints have lower tensile shear strength as welded joints because of adhesive in place where spot weld is made.
Secondary keywords: thesis;resistance spot welding;preparation of workpieces;adhesive bonding;comparison of joints;hybrid joints;galvanized steel sheet;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXII, 62 str.
ID: 11136229
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