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Geometrical Compensation of Injection-Molded Thin-Walled Parts in Reverse Engineering  

Kim Yeun Sul (Dept. of mechanical engineering, Graduate school, Chonbuk National University)
Lee Hi Koan (Automobile-parts & Mold Technology Innovation Center, Chonbuk National University)
Huang Jing Chung (Dept. of mechanical engineering, Graduate school, Chonbuk National University)
Kong Young Sik (Regional Office of Jeonbuk Smal & Medium Business Administration)
Yang Gyun Eui (Dept. of mechanical engineering, Chonbuk National University)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.6, no.2, 2005 , pp. 12-18 More about this Journal
Abstract
A geometric compensation of thin-walled molded parts in reverse engineering is presented. Researches in reverse engineering have focused on the fitting of points to curves and surfaces. However, the reconstructed model is not the geometric model because the molded parts have some dimensional errors in measurements and deformation during molding. Geometric information can give an improved accuracy in reverse engineering. Thus, measurement data must be compensated with geometric information to reconstruct the mathematical model. The functional and geometric concepts of the part can be derived from geometric information. LSM (Least square method) is adopted to determine the geometric information. Also, an example of geometric compensation is given to improve the accuracy of geometric model and to inspect the reconstructed model.
Keywords
Reverse engineering; CMM(Coordinate Measuring Machine); Laser scanner; Molding error; Measuring error; Probe force; Geometric compensation; LSM(Least Square Method);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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