FACTORS AFFECTING FORMING PRECISION IN PATTERNLESS CASTING MANUFACTURING

The patternless casting manufacturing(PCM) technique adopts a new method of double scanning which combines the principle of discreteness and deposition with the resin-bonded sand technique. Two main factors, the liquid penetration regularities in the space between particles and the shape and dimension of the agglomeration unit body, are studied qualitatively and quantitatively. This provides the theoretical basis for selecting the forming technical parameters. The experiments verify the analysis.     

快速成形技术的功能集成研究

功能集成是快速成形技术发展趋势之一；分析快速成形功能集成的分层制造原理、几何－物理基础及机械电子学基础；提出用于描述ＲＰ功能集成合理性的半定量判据－集成度，集成度是功能集成设计的工具之一。