Abstract:
A new method of
the design and machining the casting moulds of helical intake
ports of diesel engines is presented based on CAD /CAM
technique. The problems about the smooth continuity between
patches, the cutter interference and the determination of the
mould split curve are discussed in details. The CAGD system of
the intake port has been developed, and the casting mould is
machined successfully on NC machine.
Key words:
Geometric modelling Continuity
between patches Cutter interference Intakd port NC machining
Manuscript received on
November 10, 1993; revised manuscript January 15, 1994
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