|
The most costly and time-consuming stage of new product
development is to make a physical model or design prototype.
The objective of this research develop a process to reduce the
cost and time of manufacturing a engine prototype using rapid
prototyping technology. Fiirstly, the engine CAD model was
constructed, then it was transferred into STL file. And then
the engine rapid prototyping part was fabricated. Secondly,
silicone mold technique was employed to duplicate several wax
engine parts. Finally, the metal engine prototype was cast
through investment casting. The geometric data of CAD model was
obtained from reverse engineering method and original design.
For reverse engineering method, layer measurement concept was
employed to measure engine port dimension. The reduction of
cost and time to make engine prototype using rapid prototyping
and rapid tooling technology was demonstrated in this research.
|