铝合金板作为一种重要的轻量化材料，以其高比强度、良好的耐腐蚀性、良好的焊接性和高回收率等优势，成为仅次于钢材的第二大汽车材料。然而,与传统汽车相比钢铁、铝合金板形成自己的性能有一定的缺点,容易起皱和开裂的过程中形成和回弹缺陷,尤其是对发动机盖板内复杂,相对厚度小,表面质量要求高,大封面元素的缺点变得更为突出。
　　As an important lightweight material, aluminum alloy plate has become the second largest automotive material after steel due to its advantages of high specific strength, good corrosion resistance, good weldability and high recovery rate. However, compared with the traditional automobile, steel and aluminum alloy plate have some shortcomings in forming their own performance, which is easy to form and rebound defects in the process of wrinkling and cracking, especially for the complex inside of the engine cover plate, small relative thickness, high surface quality requirements, the shortcomings of the large cover elements become more prominent.

　　为了进一步推动铝合金板在汽车工业中的应用，如何克服铝合金板材料的性能劣势，获得大程度满足要求的成形件，已成为行业内的热点问题。
　　In order to further promote the application of aluminum alloy plate in the automobile industry, how to overcome the performance disadvantage of aluminum alloy plate materials and obtain the forming parts that meet the requirements to a large extent has become a hot issue in the industry.
　　其次，影响铝合金板材冲压成形的原因
　　Secondly, the reasons that affect the stamping of aluminum alloy sheet
　　一般来说，影响汽车零部件成形性能的主要因素是材料性能、成形工艺参数和模具设计。在覆盖件冲压成形中，工艺参数和模具的优化是提高成形质量的主要考虑因素。
　　Generally speaking, the main factors that affect the forming performance of auto parts are material performance, forming process parameters and die design. In the process of panel stamping, the optimization of process parameters and die is the main factor to improve the forming quality.
　　基于铝合金的汽车发动机罩内板成形工艺研究
　　Research on forming technology of automobile engine hood inner plate based on aluminum alloy
　　通过拉伸试验，获得了6016铝合金板的力学性能参数，建立了高精度的有限元分析模型。通过拉延变形模拟，探讨了材料N值、坯料厚径比T /D、压边力、摩擦系数和凹模圆角半径对板料拉延性能的影响。太阳Z C等人CAD软件和有限元相结合,并使用一个可行域序列二次规划算法来优化初始过程辅助表面,并改变了几何参数使工件的厚度变化和表面质量达到好的,这是成功地应用于方形盒子和减震器。
　　Through tensile test, the mechanical properties of 6016 aluminum alloy plate are obtained, and a high-precision finite element analysis model is established. Through the simulation of drawing deformation, the influence of material n value, blank thickness diameter ratio T / D, blank holder force, friction coefficient and die fillet radius on the drawing performance of sheet metal is discussed. Sun ZC and other CAD software are combined with the finite element method, and a feasible region sequential quadratic programming algorithm is used to optimize the auxiliary surface of the initial process, and the geometric parameters are changed to make the thickness change and surface quality of the workpiece reach the best, which is successfully applied to the square box and the shock absorber.
　　(1)模具对板料成形性能有重要影响。通过对可能出现的成形缺陷进行数值分析，并对模具表面进行持续优化，达到改善物料流动的目的，从而减少局部结构引起的成形缺陷，提高成形质量。
　　(1) Die has an important influence on sheet metal formability. Through the numerical analysis of the possible forming defects and the continuous optimization of the die surface, the purpose of improving the material flow is achieved, so as to reduce the forming defects caused by the local structure and improve the forming quality.
　　(2)工艺参数对成形质量有显著影响。压边力小，模具间隙大，有利于缓解钣金减薄，保证零件精度和强度;在一定范围内，随着压边力的增大，零件的大正回弹量略有减小，大负回弹量随着压边力的增大而增大，整体回弹量随着模具间隙的增大而增大。
　　(2) The process parameters have significant influence on the forming quality. In a certain range, with the increase of the blank holder force, the maximum positive springback of the part decreases slightly, the maximum negative springback increases with the increase of the blank holder force, and the overall springback increases with the increase of the die gap.
　　(3)通过调整型材补偿和工艺参数，可进一步降低零件回弹。研究铝合金板料成形质量的影响规律及模具表面优化可以作为实际生产的理论依据和重要参考。通过模具制造和调试，试验结果验证了发动机罩内板的冲压成形，与仿真优化结果吻合较好。
　　(3) The springback of parts can be further reduced by adjusting profile compensation and process parameters. It can be used as the theoretical basis and important reference for the actual production to study the influence law of the forming quality of aluminum alloy sheet and the die surface optimization. Through die manufacturing and debugging, the test results verify the stamping forming of the engine hood inner plate, which is in good agreement with the simulation optimization results.
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　　The above is the relevant content introduced by the aluminum plate manufacturer for you. To learn more, please visit the website: //www.renttoplux.com