Simulation Of Forming Process And Optimization Of Forming Process Parameters Of Automobile Fender Based On Taguchi Algorithm

Forming is an important working procedure,automobile panel stamping forming is the important process of car plate product forming process,one of the processes in manufacturing widely used in various fields in our country,the automobile covering parts products in the process of processing quality is unqualified,will directly affect the produce on the appearance quality of product and can affect the subsequent location product processing work goes well,and know the process directly affects the final product parts can satisfy the needs of customers.With the rapid development of auto industry and the process of technical level unceasing enhancement,the people when the choose and buy a car to cost performance and appearance of the demand is higher and higher,which makes the vehicle manufacturers of automobile the appearance quality of demand is higher and higher.As the automobile panel stamping forming finite element theory constantly update perfect,using the finite element simulation software technology development and technology innovation,automobile panel stamping forming numerical simulation technology has been rapid development,in the actual stamping and plate making and die debugging process in the hard to avoid can appear all sorts of problems,using the finite element simulation of sheet metal forming simulation analysis software also gradually become a kind of ways to solve these problems and trends.At the early stage of the automotive covering parts mould design and parts appearance modeling process,often need through the simulation experiment and actual production verification to verify the accuracy of the basic principle and the design,usually affecting the results of simulation experiments is produced under the action of multiple factors at the same time,if all the various factors influencing the results of experiment and one by one to verify the exactness of the parameters and then adapt to the product manufacturing parameters combination are obtained.Usually in order to improve the accuracy of these parameters and adaptability to products,need to continue to increase the relevant mathematical algorithm and quality analysis tools to get the parameters of the combination of quadratic optimization.This simulation simulates the use of mathematical analysis tools in manufacturing,especially in automotive covering parts.In this topic,the choice of a certain car the typical appearance of a fender is regarded as the object of the research and analysis,selection of parts finite element analysis and process simulation,and other functions is a body paint-mending ETA.Special analysis software Dynaform as analysis tool in the fender stamping material flow performance and control in the process of sheet metal forming explore the related technological parameters.In front of the analysis of simulation to the fender do relevant preparation:first need according to customer requirements for the appearance of the fender parts and compliance requirements for vehicle installation in NX.The UG,CATIA three-dimensional modeling software to the preliminary design of fender,through to the fender parts 3 d model is analyzed to develop a feasible stamping production process and design the fender drawing model;Will design a good fender modeling import DYNAFORM software,the model of finite element meshing and parameter setting,finally began to fender of simulation analysis for the process of drawing,according to the result of simulation and forming limit diagram of fender rounds of tuning parameters until the preliminary effective results;Secondly,on the basis of orthogonal experiment,using taguchi method,the design of orthogonal table,calculate the signal-to-noise ratio of the level of each factor,the result of variance analysis,obtains the fender forming results adjustable variables and affecting the stability of the influence factors of the tested again for adjustable variables optimization,finally be affecting the quality of fender forming under the optimal process parameters combination,which results in DYNAFORM under the second simulation validation,proved that the scheme is reasonable under the condition of simulating test.In the batch production phase,use the process parameter planning guidance workshop which is optimized after the above process to guide the workshop in actual stamping.Finally,it is proved that the optimized method is effective through the inspection of the exterior quality of the products.This topic to consider the various factors affecting the quality of fender forming,designed the multiple test affecting the fender stamping parameters combination,for research in the field of automotive covering parts stamping provides the theoretical basis and research direction.This paper considers many factors that influence the forming quality of the wing,designed a number of tests on the parameters of composite fender forming are studied,providing theoretical basis and direction for the study in the field of automobile panel stamping forming.