A Framework for Measurement and Analysis of Sheet Metal Parts
This paper presents an measurement and analysis system of sheet metal parts with large and complicated curved surfaces used widely for manufacturing applications. For such sheet metal parts, which is characterized by a great volume, a big area, deforming easily and its loading and unloading can be difficultly, the required accuracy and rigidity of the system are critical features. The purpose of the system is to inspect sheet metal parts before and after the remanufacturing process for avoiding a range of possible errors that can occur during the manufacturing process. In the system, the online measurement system (OLMS) developed with improved accuracy, flexibility and advanced measuring efficiency advantages, and the shape error analysis are used to assure quality and to reduce manufacturing costs and rework. The proposed shape error analysis approach first uses a statistical method to determine the number of test-points with suitable sample size. Then, the approach applies a robust mathematic model, Implicit polynomials (IP), to construct the model of the testpoints, following the geometrical adjustment of the CAD model and a report on detected shape errors. Therefore, the system can work well for sheet metal parts mentioned. Experimental results on measurement and analysis of a variety of the metal skin of aircraft are reported to show the performance of the system in manufacturing processes.
sheet metal parts manufacturing applications measurement error analysis
Wei Shao Junjie Guo Awei Zhou
State Key Laboratory for Manufacturing Systems Engineering Xian Jiaotong University Xian, Shaanxi, P,R, China
国际会议
长沙
英文
1315-1318
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）