Sökning: "ultrasonic welding"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden ultrasonic welding.

  1. 1. Detection of voids in welded joints using ultrasonic inspection : Quality control of welded joints in copper canisters for purpose of permanent storage of used nuclear waste

    Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Bakhtiar Afzalan; [2021]
    Nyckelord :Ultrasonic inspection; Nuclear waste; Nuclear waste storage; welded joints;

    Sammanfattning : This thesis was done i cooperation with SKB Clab in Oskarshamn and studies use of sonic waves for detecting voids and irregularities in the weld joints of copper capsules used for long term storage of radioactive waste. Since these could pose material failure and thereby risk radioactive contamination of ground water it is very important to find means of quality control before storage. LÄS MER

  3. 2. Rening av odörer från septiktank

    M1-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Niklas Möller; [2020]
    Nyckelord :;

    Sammanfattning : This report is a result of a thesis made at Mälardalen University in product development and construction, PPU305. The project was carried out during spring and summer of 2020. The client of the thesis is AB Durgo and the aim for the project was to develop a concept proposal that solves the problem of odor smell flowing out of a septic tank. LÄS MER

  4. 3. Welding methods for electrical connections in battery systems

    Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Alec Chamberlain; Harald Larsson; Louise Nilsson; Daniel Vasquez; Samir Schouri; Elin Myrsell; Sally Walin; [2019]
    Nyckelord :Resistance spot welding; laser beam welding; ultrasonic welding; battery cell; electrical performance; weld quality; cost analysis; automation degree; production yield;

    Sammanfattning : The demand for high energy battery assemblies is growing in sectors such as transportation. Alongwith it is the need for reliable, efficient and cost-effective ways to electrically connect the batteries toensure their performance. Battery cells are most often put into modules or packs when produced forelectrically driven vehicles. LÄS MER

  5. 4. Testprocedur för undersökning av adhesiv förslitning vid svarvning

    M1-uppsats, Högskolan i Gävle/Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

    Författare :Robert Vik; [2018]
    Nyckelord :Adhesiv förslitning;

    Sammanfattning : Adhesive wear in machining is caused by adhering through micro welding of workmaterial on the cutting tool, this may lead to the formation of built-up edge andbuilt-up layer. This is known as secondary adhesion, the wear mechanism mayalso lead to pieces of the tool coating being ripped of and following the chip, which is known as primary adhesion. LÄS MER

  7. 5. Electrical connection for aluminium conductors in automotive applications : Prestudy of available solutions for electrical connection methods of aluminium cables

    Master-uppsats, KTH/Materialvetenskap

    Författare :Emilia Hamedi; [2017]
    Nyckelord :Connector; electrical contact; termination; aluminium conductor;

    Sammanfattning : Due to increasing weight of electrical component and wiring harnesses in a vehicle contrary to the demand of light constructed vehicles as well as the constantly increasing and fluctuating price of copper compared to aluminium’s stable and far lower price, the use of aluminium conductors as an alternative have been promoted.  This thesis work lay theoretical research of the available methods used for electrical connection of aluminium conductors in order to increase the knowledge about the available termination techniques. LÄS MER