The magnetic particle method is established since 80 years as a method for the prove of surface cracks in ferromagnetic material. The MT method (MT = magnetic testing) is one of the most simple and most sensitive methods in NDT. Using MT surface defects can be detected safely even along complex geometries. Only in Germany more than one billion parts per year are tested on surface cracks non-destructively in the automotive industry. This has got its reason: With the exception of some cases all loads are maximum on the surface of a component and they decrease inside the part. In relation of the most important cause of a damage, the crack, the surface of a component is two times weaker than the inside. This leads us to the fact that the highest forces affect the weakest regions of a part. Due to this, surface crack detection once more shows its significance in mass production. Since the MT results are always pictorial the magnetic particle testing method is a integral NDT method that perfectly matches the sensory needs of the human inspector. Due to this and due to the fact that the process of magnetization and spraying can be applied upon the whole surface of the component in one go, the MT method shows a very high potential to be fully automated and production line integrated. The following passages will show examples from the automotive industry that will give an idea how magnetic testing combined with machine vision and a self controlling structure turns into a fully automated and production integrated NDT method.


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    Titel :

    Application of magnetic particle inspection in the field of the automotive industry


    Weitere Titelangaben:

    Einsatz der Magnetpulverprüfung auf dem Gebiet der Automobilindustrie


    Beteiligte:


    Erscheinungsdatum :

    2008


    Format / Umfang :

    10 Seiten, 16 Bilder, 2 Tabellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch





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