Apparatus for removing dent in sheet metal and method thereof
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United States of America Patent
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Oct 27, 2009
Issued Date -
N/A
app pub date -
Oct 11, 2007
filing date -
Oct 11, 2007
priority date (Note) -
Expired
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Abstract
An apparatus for removing a dent in finished sheet metal heats a steel panel by applying a high frequency induced current thereto and simultaneously cools a clear coat by spraying a coolant to a surface of the sheet metal and a cooling pipe, wherein the finished sheet metal is composed of at least the ferromagnetic steel panel and the non-ferromagnetic clear coat having different thermal expansion coefficient and thermal damage temperature.
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