Method for manufacturing a machine housing having a surface-hardened fluid chamber
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United States of America Patent
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Aug 23, 2011
Grant Date -
Jul 15, 2010
app pub date -
May 29, 2008
filing date -
Jul 24, 2007
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Abstract
Method for manufacturing a machine housing having a fluid chamber (14) with a hardening layer (16) on an internal wall surface, in which the hardening layer (16) is made of a material, that, per-se, is not electrically conductive but has been made conductive by additives, and in that the surface of the hardening layer (16) is machined by electro-discharge machining.
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