Metal Casting Computer Aided Design And Analysis By B Ram Pdf
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- Proceedings Papers
- Computer-aided manufacturing
- Quantifying the Role of Part Design Complexity in Using 3D Sand Printing for Molds and Cores
It is desirable to understand when to use this evolving advanced technology versus conventional pattern making. This analysis evaluates this question by examining the cost of molds and cores as a function of part design complexity quantified by a complexity factor. Two case studies are presented where the complexity of the castings is systematically varied by changing the geometry and number of cores. Tooling costs and fabrication costs are estimated for both 3D sand printing and conventional pattern making.
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The modeling process of full denture available in the trial version of 3Shape Dental System was used to design virtual complete dentures on the basis of 3-dimensional 3D digital edentulous models generated from the physical models. The physical dentitions were bonded to the corresponding baseplates to form the maxillary and mandibular complete dentures. Virtual complete dentures were successfully designed using the software through several steps including generation of 3D digital edentulous models, model analysis, arrangement of artificial teeth, trimming relief area, and occlusal adjustment. Physical dentitions and baseplates were successfully fabricated according to the designed virtual complete dentures using milling machine controlled by a CAM software. Bonding physical dentitions to the corresponding baseplates generated the final physical complete dentures. Edentulism has been a serious public health problem in industrialized countries due to population aging and in developing countries due to poor oral care.
Quantifying the Role of Part Design Complexity in Using 3D Sand Printing for Molds and Cores
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