Blending Adjacent Section-contours in 3D Model Using Rotary Ray with Inner Center

摘要：

To decrease the influence of the staircase effect to the shape and dimension precision of rapid prototyping part, a method of blending the adjacent section-contours in CAD model using rotary rays is explored in this paper. The current and the next section in CAD model were projected onto a horizontal plane, and the outer and the inner boundary were obtained by computing the sections union and intersection, and then the adjacent contours were blended by using rotary rays through proper inner point in the intersection to achieve the current layers scanning contour. Test shows that the method can realize the layers cusp distribution of the positive tolerance, the negative tolerance and the mixed tolerance, meeting the cusp tolerance distribution requirements of the parts applied in different situations, and expanding the cusp distribution connotation in rapid prototyping.

关键词： rapid prototyping containment relationship rotary ray with inner center blending contours

作者: Wang Weichen Zhu Zhencai

作者单位: China University of Mining & Technology, Xuzhou, Jiangsu, 221116, China Xuzhou Normal University, Xu China University of Mining & Technology, Xuzhou, Jiangsu, 221116, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 332-335

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）