METHOD FOR HOT OR WARM FORMING A WORKPIECE AND PRODUCTION PLANT FOR HOT OR WARM FORMING A WORKPIECE
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United States of America Patent
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Nov 5, 2015
filing date -
Nov 19, 2014
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Abstract
A method for hot or warm forming a workpiece may comprise providing the workpiece to be formed, at least partially pretreating the workpiece, at least partially heating the workpiece to a target temperature, and at least partially forming and/or hardening the workpiece. Furthermore, the workpiece may be at least partially cleaned in a cleaning step between the pretreating and the heating of the workpiece. In some examples, at least partially cleaning the workpiece may involve brushing the workpiece, using a cleaning bath, or heating the workpiece with a first burner to a cleaning temperature. Further, one or more burners used to heat or clean the workpiece may be operated with a fuel gas and/or an oxygen-containing gas.
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