Electric heating – Inductive heating – Metal working
Reexamination Certificate
2008-05-27
2008-05-27
Van, Quang (Department: 3742)
Electric heating
Inductive heating
Metal working
C228S107000, C228S131000
Reexamination Certificate
active
07378622
ABSTRACT:
A system and method for electromagnetic surface treatment of a work piece has an electromagnetic pulse generator and an electromagnetic pulse tool. The work piece has a working surface. A current pulse generated by the electromagnetic pulse generator travels through the tool producing an electromagnetic pulse. The electromagnetic pulse interacts with the working surface causing an indentation to form. A residual compressive stress layer is also formed. The indentation has a smooth and continuous topography that is described by an indentation perimeter, an indentation transition region, an indentation sidewall, an impact transition region, and an impact region. The method may also simultaneously, or subsequently, form a second indentation which overlaps with the indentation. An inter-indentation overlap region is formed when the indentations overlap. The inter-indentation overlap region is smooth and continuous. Multiple treated surfaces may easily be formed on the working surface of the work piece.
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Dydo James R.
Yushanov Sergei P.
Dawsey David J.
Gallagher Michael J.
Gallagher & Dawsey Co LPA
Gateway Engineering, Inc.
Van Quang
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