Automotive manufacturers paint components throughout the vehicle for corrosion protection and aestetics. However, measuring the actual corrosion resistance requires weeks to months using salt-spray, cyclic and whole vehicle testing. In addition, we need to move quality assurance into the production cycle where variations can be controlled. This study aims to provide the missing in-plant monitor, based on electrochemical impedance spectroscopy. A fastener finish quality monitor based on electrochemical impedance spectroscopy (EIS) has been successfully demonstrated on coated steel fasterners. The coating qualities can be assessed by comparing the measured spectrum with storad spectra of known samples, or by determining values of the coating-specific parameters extracted from the spectrum. Fasteners with a typical coating (zinc phosphate/zinc-rich epoxy/aluminum tin topcoat) can be easily classified to identify deviations from the specified condition, using impedance signatures. With automated data analysis software, coating variation and cause can be identified within 20 minutes. The new quality monitor can be interfaced with fastener coating operations in three ways: Measure and control parts quality in manufacturing, facilate process development, and predict corrosion performance based on signature changes for fasteners exposed to a test environment.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    On-line fastener finish quality monitoring by electrochemical impedance spectroscopy


    Weitere Titelangaben:

    Schnellere On-line-Überwachung der Endqualität durch elektrochemische Impedanz-Spektrometrie


    Beteiligte:
    Wang, Yr-Ming (Autor:in) / Snyder, D.D. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    7 Seiten, 9 Bilder, 3 Tabellen, 7 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    On-line fastener finish quality monitoring by electrochemical impedance spectroscopy

    Wang,Y. / Snyder,D.D. / General Motors,US | Kraftfahrwesen | 2002


    On-Line Fastener Finish Quality Monitoring by Electrochemical Impedance Spectroscopy

    Snyder, Dexter D. / Wang, Yar-Ming | SAE Technical Papers | 2002


    2002-01-0033 On-Line Fastener Finish Quality Monitoring by Electrochemical Impedance Spectroscopy

    Wang, Y.-M. / Snyder, D. D. / Society of Automotive Engineers | British Library Conference Proceedings | 2002


    On-line corrosion monitoring with electrochemical impedance spectroscopy

    Roberge, P.R. / Sastri, V.S. | Tema Archiv | 1994


    FASTENER-MONITORING DEVICE, FASTENER-MONITORING SYSTEM, AND FASTENER-MONITORING METHOD

    NISHIO YUSUKE | Europäisches Patentamt | 2022

    Freier Zugriff