Apparatus for removing dent in sheet metal and method thereof
OwnerBeom-Seok Choe, Hoon Kiminventors
Life of this patent
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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.
Claims11
An apparatus for removing a dent in finished sheet metal, comprising:
- a hollow housing;
- a cylinder disposed in the housing;
- a coil wound at an exterior circumference of the cylinder;
- a cooling pipe disposed in the cylinder for supplying a coolant to the finished sheet metal and the cylinder;
- an induced current generating module for applying a high frequency induced current to the coil, wherein a plurality of first air holes are formed at an exterior circumference of the cooling pipe along an axial direction thereof;
- and
- a connecting body mounted in a lower portion of the housing, the connecting body having a plurality of second air holes and air grooves formed at a lower part of the connecting body.
A method for removing a dent in finished sheet metal, wherein the dent that is formed toward a steel panel is removed and where the steel panel is ferromagnetic and has a high thermal expansion coefficient and where the steel panel is coated at an exterior surface by a clear finishing coat that is non-ferromagnetic and has a low thermal expansion coefficient, and
- wherein the steel panel is heated by applying a high frequency induced current thereto, and the clear coat is cooled by spraying a coolant from a plurality of first air holes formed at an exterior circumference of a cooling pipe along an axial direction thereof and a plurality of second air holes and air grooves formed at a lower part of a connecting body mounted in a lower portion of a housing.
Dependencies are inferred from the claim text.