【摘要】 快速成形零件变形是因为树脂固化中存在从液态向固态变化过程中产生的收缩,零件的变形与受力情况有关,而且受零件的尺寸、形状、位置的影响,采用二次曝光工艺,使得部分收缩自由释放,减少收缩对零件的影响,可以明显改善零件的变形。更多还原

【Abstract】 Parts deform is due to the resin shrinkage when changing from liquid state to solid in the curing process in rapid prototyping, and the deform size depends on the shrinkage rate and relates to the size, shape and position of the parts. The double exposure process allows the parting shrinkage release freely, decreasing the influence on the parts and improving the parts deform greatly.更多还原