Parts welded in a rotationally symmetrical manner
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United States of America Patent
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Mar 22, 2016
Grant Date -
Jul 12, 2012
app pub date -
Sep 8, 2010
filing date -
Sep 23, 2009
priority date (Note) -
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Abstract
A part (10) welded in a rotationally symmetrical manner and comprising two parts (12, 14), which are connected by a rotationally symmetrical weld (16), wherein a main loading area (22) occurs in the vicinity of the weld (16), and only the weld (16) and the surroundings (22) thereof are strengthened by case hardening in the extreme fiber in such a way that case strengthening is present there, and a method for producing a part (10) welded in a rotationally symmetrical manner and comprising two parts (12, 14) by welding a rotationally symmetrical weld (16) between the two parts (12, 14), wherein after the parts (12, 14) are welded, the weld (16) and the surroundings (22) thereof are case hardened and the hardened zone (16, 22) is quenched immediately thereafter.
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