Roller Hemming Simulation And Process Optimization About Panel Of Aluminum Alloys Body

Currently, the body of aluminum alloy plate has become an important automotive lightweight material technologies,because it has high strength, low density, corrosion resistance, light weight, etc., so as a car to aluminum body panels, automotive lightweight is a trends at current and future. However, with respect to the steel body, aluminum body panels on the process put forward higher requirements. Robot Hemming technology is developed foreign auto companies mainly aluminum body panels connection technology, but the technology is less in domestic application. Therefore, research and explore robotics technology Roller hemming and promoting and marketing of aluminum cover on the car’s use. Results and conclusions of this study are:1. The establishment of a rational plane straight side aluminum hemming models.In this paper, aluminum sheet metal forming CAE technology, domestic and international reference model and plate aluminum trim trim model with aluminum alloy(Grade 5052) to trim the study established a simulation model and experimentally obtained aluminum alloy(5052 grade) related material parameters.2. Based on the available information at home and abroad, compared the effects of different boundary conditions model aluminum trim aluminum trim the stress of the plate.In this paper, simulation method, the boundary conditions are summarized in different types of domestic and applied to the model, at the same other conditions, through simulation, when the stress got under different boundary conditions of the aluminum alloy plate trim size, thereby determining a reasonable boundary conditions.3. The use of orthogonal experimental data analysis methods to optimize hemming parameters.Analysis of the orthogonal design theory is applied to aluminum trim influence of process parameters on the wave coefficient and the amount of stretching after the aluminum trim. Comprehensive investigation and evaluation of the piping process parameters, the roller radius, outer plate corner radius, flange height, TCP-RTP-1, TCP-RTP-2 on wave coefficient and the amount of stretching after the aluminum hemming.4. The first proposed method of improving the efficiency of aluminum hemming by Multi-roller simultaneously.This paper explores the possibility of simultaneous multiple wheel trim, and with the traditional single wheel trim for comparison, also proposed multi-roller hemming to achieve the appropriate solutions while single wheel trim effect.The project aims to study the body panels of aluminum alloy rolled edging forming process, quality factors shaping edging; the project is conducive to the development of robots for aluminum piping systems and equipment, will help promote the body panels of aluminum alloy applications, thus achieving energy saving purposes.