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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Ultragarsinio lituoklio konstravimas ir tyrimas / Construction and research of ultrasonic soldering iron

Avižen, Valdemar 19 June 2013 (has links)
Darbo tikslas yra, pagaminti ultragarsinį lituoklį laboratorinėmis sąlygomis, skirtą mokymo tikslam. Apžvelgus literatūrą, yra modeliuojama kompaktiškesnė ir mažesnė ultragarsinė pjezomechaninė sistema. Sukonstravus ir pagaminus eksperimentinį pavyzdį, jis yra eksperimentiškai ištiriamas, tai yra, juo bandoma lituoti prie sunkiai lituojamų medžiagų, tokių kaip: aliuminis, stiklas, keramika ir saulės cėlės. Pateikiami bandymų rezultatai. / The aim of this – are CONSTRUCTION AND RESEARCH OF ULTRASONIC SOLDERING IRON. To achieve this, it was raised four challenges: 1) Examine existing ultrasonic soldering iron type, 2) Simulated ultrasonic piezo system, 3) Designed and produced an experimental model, 4) Experimentally investigate constructed ultrasonic soldering iron sample . After literature review is modeled more compact ultrasonic piezo system. Soldering tip is selected from a simple soldering iron, so all system is coordinated to it. Selected wavelength transducer, for the larger sizes, so delaying piezo ceramics from the fusing soldering tip. Designed and built an experimental model, it is experimentally investigated. First performed impedance - frequency and amplitude-frequency characteristics. Then, ultrasonic soldering iron is experimentally tested. Trying to solder, hard solder materials such as aluminum, glass, ceramics and solar cells. Then are presented test results.
2

Development and Characterization of NiTi Joining Methods and Metal Matrix Composite Transducers with Embedded NiTi by Ultrasonic Consolidation

Hahnlen, Ryan M. 03 September 2009 (has links)
No description available.

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