基于Dynaform与Abaqus铝合金冲压成型及模具结构联合仿真分析

为实现多规格、小批量不同尺寸冲压件的个性化生产需求，设计一种新型可调式组合冲压模具。该冲压模具的凹模结构采用四边拼块组合而成，并且可在各自方向上实现位置的移动，由此可重新组合成不同尺寸的凹模，实现生产尺寸各异冲压件的目标。基于Dynaform平台通过模面工程技术进行冲压成型工艺仿真分析，同时输出最大成型压力。在有限元Abaqus软件平台上，将Dynaform输出的最大成型压力作为Abaqus的载荷输入，对可调式组合模具的凹模拼块进行刚度校核，确保倾向位移不影响产品质量，保证冲压模具结构的可靠性和使用寿命。结果表明：基于Dynaform与Abaqus的联合仿真，可以有效预测冲压成型工艺的可行性及模具结构的合理性，为冲压模具试模成功提供理论依据。

Stamping Molding and Die Structure Joint Simulation Analysis Based on Dynaform and Abaqus

In order to meet the personalized production needs of different sizes stamping parts with multiple specifications and small batches,a new type of adjustable combination stamping die was designed.The female die structures of the stamping die were both composed of four sided blocks,and could achieve position movement in their respective directions.Therefore,they could be reassembled into female die with different sizes,achieving the goal of producing stamping parts with different sizes.Based on the Dynaform platform,the stamping forming process was simulated and analyzed using die surface engineering technology,while the maximum forming pressure was output.On the finite element Abaqus software platform,the maximum forming pressure output by Dynaform was used as the load input of Abaqus to verify the stiffness of the female die assembly block of the adjustable combination mold,ensuring that the displacement inclination not affect product quality,and ensuring the reliability and service life of the stamping die.The results show that the joint simulation based on Dynaform and Abaqus can effectively predict the feasibility of stamping forming process and the rationality of mold structure,providing a theoretical basis for the successful trial of stamping molds.