Process Planning in Sand Casting

Summary

This chapter sets out general design rules for sand casting, covering aspects such as part orientation and parting plane, gating system design, directional solidification and riser design, core design, and pattern fabrication. The presented guidelines are supplemented by practical examples to illustrate their application. For correct core and mold design, the chapter explains how metallostatic forces are estimated and how they may lead to core displacement/breakage or mold lift, in which cases chaplets and mold clamps are required. The chapter concludes with a brief description of inspection and finishing operations commonly conducted in casting processes.