Super Deep Drawing Automotive Steel DC06 Deep Drawing Froming Numerical Simulation And Performance Study

DC06 mainly used for stamping car body structure, covering parts, suspension parts;belongs to the super deep drawing high strength automotive steel;Has good formability andweldability, low temperature toughness, high plastic strain ratio and high uniformelongation and low yield strength and low aging index, good ability to resist concave,adequate structural strength and stiffness, appropriate bake hardenability and workhardening ability and good surface morphology and bright and clean degree, good flatnessand straightness, board face strict dimension precision stamping and performanceuniformity, high pass rate, not only can a complex structure of automobile body stampingparts and components, and in line with the green car concept for auto lightweight and highrequirements of the collision safety performance, reduce body weight, reduce fuelconsumption and CO2 emissions, is widely used for the world’s largest car manufacturers.Through nonlinear numerical simulation software Dynaform stamping processsimulation, can significantly shorten the mold development cycle, reduce cost, predictforming mould design may occur in the process of rupture, wrinkling, thinning, scratches,rebound stamping forming defects, such as improving traditional production process, haveneedle, predictive the improvement and optimization of stamping mould and processdesign, improve the quality of stamping parts forming and production efficiency.Surface shape is a sheet metal stamping parts production and main research fields offorming parts, in order to obtain various performance parameters in the process of sheetmetal forming, grasp the characteristics of sheet metal forming, often through the mainsheet metal forming simulation of cylindrical parts forming process, as a research oncurved surface parts stamping formability and forming the basis of process analysis.This article based on the numerical simulation software of sheet metal deep drawingDynaform and the equipment based on“servo press forming stamping performance testsystem”for cold stamping forming numerical simulation and performance analysis;Firstthrough DC06 steel mechanics performance parameters of the tensile experiments, analysisof the stamping characteristics;Then based on the numerical simulation software Dynaformto simulate sheet metal deep drawing stamping speed, blank holder force control and theratio of the orthogonal analysis to determine the optimal process parameters and the mostreasonable stamping speed and range of blank-holder force, thus again based on theoptimal process parameters determine the limit drawing height and limit drawingratio;According to the result of numerical simulation of physics experimental verification,measurement DC06 steel the limit drawing coefficient, explore the blank-holder force,stamping speed on the limit drawing coefficient corresponding to the effect of billetdrawing, and then verified the optimal process parameters, combined with physicalexperiment comparing with the results of numerical simulation analysis; In addition, thetraditional cupping test and improve the cup drawing experiment, obtain DC06 steel IEvalue, which is based on the physical experiment results for accurate numerical simulationoptimization, IE value finalized DC06 steel, the optimal value, IE to improve theformability of materials under different conditions of use and process comfortable degree.