Mold device and method of manufacturing cylinder block

Details Mold device and method of manufacturing cylinder block Mold device and method of manufacturing cylinder block

2005-04-25

2010-06-22

Ward, Jessica L. (Department: 1793)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S132000, C164S339000, C164S342000, C164S369000

Reexamination Certificate

active

07740049

ABSTRACT:
A method of manufacturing a cylinder block using a die apparatus wherein a columnar hole includes a bore in the cylinder block. The method includes the steps of abutting first and second split cores against an upper surface of a distal end core, the upper surface being located opposite the inner core, and introducing a molten metal into a cavity. An inner core is withdrawn to move the first and second split cores toward an axis. The first and second split cores are released from a formed product made of solidified molten metal. The split cores are removed from the formed product to form the bore, and an inner surface of the bore is cut.

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