Design and Realization of Auto-Programming System for SLS on CAD

Qing Guo Chen; Jun Cai Zhang

doi:10.4028/www.scientific.net/AMR.662.879

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662Design and Realization of Auto-Programming System...

Design and Realization of Auto-Programming System for SLS on CAD

Abstract:

The detail and design of numerical control system for SLS are discussed. With the help of Visuall C++ and tool kit ObjectARX in AutoCAD, the data information of the 2D contours are extracted from model in AutoCAD by data processing, and these data are transferred to laser scanning data, finally NC codes for processing are generated. A new kind of adaptive slicing algorithm that determines the slicing thickness by comprehensively considering the surface normal and the cross-sectional area, is adopted in data processing. The preheat temperature, scanning speed, laser power and thickness of spreading layer are main factors to part quality in Selective Laser Sintering(SLS). Sintering parameters are optimized by orthogonal experimental design. And a matching rule between scanning velocity and laser power is established so as to realize the laser power matching in different scanning velocities. In order to maintain and transplanted the system, the modular structure is used in the procedure of system design.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

879-883

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.879

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Online since:

February 2013

Authors:

Qing Guo Chen, Jun Cai Zhang

Keywords:

Auto CAD, Direct Slicing, Modular Structure, Numerical Control, Sintering Parameters Optimization, SLS

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References

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