位于俄亥俄州利马的SUNDSTRAND ELECTRIC POWER SYSTEMS公司正在使用三维实体建模和各种快速原型技术，以加强集成产品和过程开发（IPPD）的实施，后者通常被称为并行工程。项目设计/建造团队使用立体光刻、选择性激光烧结或其他适当的工艺，对关键部件（如复杂熔模铸件）进行快速原型制作，以验证其形状、适合性和功能。数控机床从实体模型数据库中开发铣削或车削零件，供应商作为合作伙伴参与设计和开发过程，以提供设计输入，从而避免成本高昂的制造错误。设计/建造团队还通过快速原型技术生产工程验证测试零件。本文回顾了在T

SUNDSTRAND ELECTRIC POWER SYSTEMS IN LIMA, OHIO IS USING 3-D SOLID MODELING AND VARIOUS RAPID PROTOTYPING TECHNOLOGIES TO ENHANCE THE IMPLEMENTATION OF INTEGRATED PRODUCT AND PROCESS DEVELOPMENT (IPPD), MORE COMMONLY KNOWN AS CONCURRENT ENGINEERING. PROJECT DESIGN/BUILD TEAMS RAPID PROTOTYPE KEY COMPONENTS SUCH AS COMPLEX INVESTMENT CASTINGS TO VERIFY FORM, FIT AND FUNCTION USING STEREOLITHOGRAPHY, SELECTIVE LASER SINTERING, OR OTHER APPROPRIATE PROCESSES. NUMERICAL CONTROL MACHINE TOOLS DEVELOP MILLED OR TURNED PARTS FROM THE SOLID MODEL DATABASE AND SUPPLIERS ARE INCLUDED IN THE DESIGN AND DEVELOPMENT PROCESS AS PARTNERS TO PROVIDE DESIGN INPUTS THUS AVOIDING COSTLY MANUFACTURING ERRORS. THE DESIGN/BUILD TEAMS ALSO PRODUCE ENGINEERING VERIFICATION TEST PARTS VIA RAPID PROTOTYPING TECHNIQUES. THIS PAPER REVIEWS SPECIFIC CASE STUDIES WHERE RAPID PROTOTYPING TECHNOLOGIES WERE USED ON T