METHOD AND DEVICE FOR PRODUCING COILS FROM WIRES
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United States of America Patent
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Issued Date -
Nov 8, 2012
app pub date -
Dec 10, 2010
filing date -
Dec 30, 2009
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Abandoned
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Abstract
The invention relates to a method and a device for producing coils (9) with longitudinal sections (9a) and narrow deflection bends (9b) by winding wires (8) on winding mandrels (4) with complementary cross sections with the supply of heating energy and subsequent fixing by cooling. To attain the object to rule out the spring rebounds of the coils (9) at the points of narrowest radii of curvature as far as possible and to produce coils (9) with high precision with high efficiency, it is proposed according to the invention that the heating energy is brought to act on the coils (9) at least mainly in the region of the narrow deflection bends (9b). This can be carried out by the targeted application of heating gases or hot air, laser radiation, contact heating, plasma radiation and ultrasound.
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