Air Conditioning Panel Stamping Numerical Simulation Studies

Dual air conditioning panel is a stamping part with multiple processes and complicated shape, including punching, bulging, reaming, flanging, expanding, such as bending processes. As more processes, and factors affecting the accuracy of workpiece more, using the traditional means of quantitative analysis, physical simulation and experimental verification in determining processing plan and stamping die design, making a longer production cycle, the higher the cost. Production of the experience accumulated knowledge is not intuitive, not systems, and numerical simulation technology to the sheet metal forming analysis of the entire process, provides mechanical deformation of the material detailed information so that the traditional reliance on qualitative analysis and practical experience in the Process Analysis Quantitative changes to the numerical analysis and realized the number of parts forming process can advance to forming quality assessment processing plan of testing and has been die debugging time and experimental costs.Sheet metal stamping included material nonlinearity, geometric nonlinear, multiple nonlinear contact nonlinear problems, and the establishment of the mathematical model involved multiple disciplines. According to the sheet metal forming large deformation characteristics of small strain, the paper used elastic-plastic finite element method, choice of Hill thick elastic-plastic model of heterosexual or Barlat plane anisotropic elastic-plastic constitutive equation model material, yield criteria, finite element degradation Shell Penalty Function modules and interface processing technology, as well as the use of advanced software DYNAFORM, the air-conditioned panel of double machine was simulated to form, possible problems or shortcomings were predicted, the processing plan for the stamping process and die design parameters were optimized, and a reasonable selection theory basis was provided.In this paper, the method of orthogonal material properties, mold process parameters on the air conditioning panel stamping impact was studied. Through the numerical simulation results of the analysis, concluded: Under certain conditions, material parameters on the performance of the air-conditioning panels forming a decisive impact on the quality of play, hardening index on the air conditioning panel small fillet impact of the bulging larger, and thick coefficient on the air-conditioning to heterosexual reaming, and expanding flanging great influence; hardening index and the thickness of material forming limit curve determines the location of the level; die in the process parameters BHF major friction coefficient and surface for air conditioning Expansion plate stamping expanding the impact of a large, extended expansion process is in the air conditioning panel stamping one of the most critical processes. Die reasonable choice of parameters can maximize the potential of a material deformation, and reduce sheet metal forming quality issues.Forming the panel simulated air-conditioning more step, the step to ensure that the deformation of the historical information is not lost multi-step numerical simulation of the key to success. Overall through the finite element analysis can provide technical support for the production of air-conditioning panel stamping, as well as complex multi-step finite element analysis of the further study provide a certain degree of technical ideas.