Abstract
The combined forward extrusion experiment re-search that can simultaneous extrude all gibbose platform and pole in once excursion of hydraulic press is for the plane-hook-commutator body in motors-one kind of multi-pole part with gibbose platform joined principal part.The experiments has actualized successfully integral cold extrusion of the hook-commutator,and implemented the numerical simu-lation by computer soft super forge for the cold extrusion proc-ess.The result manifest that the every part of combined extru-sion deformation process has 3 stages parallel-compression,extruding gibbose platform and then pole at one time.Accord-ing to that a new concept of collateral extrusion or a new dis-tortion form in combined extrusion is put forward,and expect to provide some gists or references for more development of cold extrusion technics theory and application.
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