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    • 8. 发明专利
    • Method for reducing differential shrinkage in stereolithography
    • 减少立体成像中差异收缩的方法
    • JP2012071602A
    • 2012-04-12
    • JP2011209598
    • 2011-09-26
    • Materialise Nvマテリアライズ エヌ.ブイ.Materialise N.V.
    • COECK SAM
    • B29C67/00
    • B29C67/0085B29C64/124B29C64/393B29K2995/0096B33Y10/00B33Y30/00B33Y50/00
    • PROBLEM TO BE SOLVED: To provide a three-dimensional object with reduced differential shrinkage by forming successive, adjacent, cross-sectional laminae of that object and the object being specially processed.SOLUTION: Using parameters for determining stimulation power for lamina n, the three-dimensional object is generated by forming successive, adjacent, cross-sectional laminae of that object out of a resin capable of altering its physical state in response to stimulation or illumination. The parameters for determining the stimulation power for lamina n are chosen from a group including the total scanning distance and/or the total jumping distance of a stimulation pattern for lamina n, a pre-stimulation waiting time applied for lamina n+1 and/or the resin type. Parameters for determining the pre-stimulation waiting time for lamina n+1 are chosen from a group including the total scanning distance and/or the total jumping distance of the stimulation pattern for lamina n, stimulation power applied for lamina n and/or the resin type.
    • 要解决的问题:通过形成该物体和被特殊处理的物体的连续的,相邻的横截面薄片来提供具有降低的差异收缩率的三维物体。 解决方案:使用用于确定层板n的刺激力的参数,通过从能够响应于刺激改变其物理状态的树脂形成该物体的连续的,相邻的横截面层而产生三维物体, 照明。 用于确定层板n的刺激功率的参数从包括层叠n的刺激模式的总扫描距离和/或总跳跃距离的组中选择,对于层n + 1施加预刺激等待时间和/或 树脂类型。 用于确定层间n + 1的预刺激等待时间的参数选自包括用于层板n的刺激图案的总扫描距离和/或总跳跃距离,施加于层板n和/或树脂的刺激功率的组 类型。 版权所有(C)2012,JPO&INPIT