Analysis on forming load in continuous multi-point forming
| Autor: | 龚学鹏 Gong Xue-peng, 卢启鹏 Lu Qi-peng, 彭忠琦 Peng Zhong-qi, 李明哲 Li Ming-zhe |
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| Rok vydání: | 2012 |
| Předmět: |
Surface (mathematics)
Engineering business.industry Numerical analysis Radius Structural engineering Curvature Atomic and Molecular Physics and Optics Displacement (vector) Finite element method Electronic Optical and Magnetic Materials visual_art visual_art.visual_art_medium business Sheet metal Multi point |
| Zdroj: | Optics and Precision Engineering. 20:1288-1295 |
| ISSN: | 1004-924X |
| DOI: | 10.3788/ope.20122006.1288 |
| Popis: | A Continuous Multi-point Forming(CMPF) equipment was developed to manufacture 3D surface parts in high efficiency and flexibility,and the historical changing of forming loads and the influences of different technical parameters on forming loads were analyzed.First,the principle of CMPF was introduced,and theoretical formulas of forming loads were established based on certain hypothetical conditions.By taking a double curvature part as a research object,a Finite Element Analysis(FEA) model was established,and the historical changings of y direction load,z direction load and equivalent load were analyzed.Furthermore,the influences of press displacement,thickness,and curvature radius of a flexible roller on forming loads were analyzed.Finally,the equipment was designed,and experiments were carried out.Results indicate that the maximum value of y direction load is 6.693 kN,maximum of forming load is 6.716 kN,and the forming load is made up of y direction load nearly.Moreover,the maximum value of z direction load is 1.412 kN,which is considered as a driving force.Along with the increases of press displacement and thickness of sheet metal,the y direction load is increased.Along with the decrease of curvature radius of a flexible roller,the y direction load is increased.The changing situations of forming loads accord with practical situation,which offers a guidance for CMPF equipment.From experimental results,CMPF is a continuous,high efficiency and flexible forming method for 3-D surfaces. |
| Databáze: | OpenAIRE |
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