Fractal scanning path generation and control system for selective laser sintering (SLS)

被引：75

作者：

Yang, J ^{[1
]}

Bin, H ^{[1
]}

Zhang, X ^{[1
]}

Liu, Z ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Hubei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2003年 / 43卷 / 03期

关键词：

fractal scanning path; arbitrary boundary; trimming; CNC system; selective laser sintering;

D O I：

10.1016/S0890-6955(02)00212-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A fractal scanning path which is a FASS (space-filling, self-avoiding, simple and self-similar) curve is proposed for selective laser sintering (SLS). The-authors' preliminary research has proved that the samples which are produced by SLS along a fractal scanning path possess improved physical performance. However, the complete FASS fractal curves can only fill a square region, thus a method is developed to realize trimming of the fractal curves suitable for arbitrary boundaries by means of judging intersection points between arbitrary boundaries and the fractal curves as well as to keep the FASS feature. Moreover, a two-lever special control system is built to realize the real-time sintering of samples aiming at the fractal scanning, and the interrupt technology is used for the main-Accessory system synchronization. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：293 / 300

页数：8

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