基于响应曲面法的QSTE460板料冲裁工艺参数优化

发布时间：2018-09-18 07:50

【摘要】：以冲压零件作为分析对象,基于响应曲面法设计板料冲裁的模拟试验,利用DEFORM-2D模拟软件对板料的冲裁变形过程进行有限元模拟,建立了冲裁工艺参数与冲裁断面光亮带长度之间的数学模型。通过模拟结果的分析得知:冲裁间隙与模具刃口圆角半径对光亮带长度的交互式影响最大。将冲裁速度、冲裁间隙以及模具刃口圆角半径作为设计变量,以光亮带长度作为优化目标,利用Design Expert软件对响应曲面模型进行优化,得到板料冲裁的优化参数:冲裁速度为14.04 mm·s-1,冲裁间隙为8.99%t(t为板料厚度),模具刃口圆角半径为1.25%t,光亮带长度的响应值为0.834 mm。此外,利用冲压模具进行试验验证,试验值与响应值之间的相对误差为11.8%,验证了响应曲面法应用于板料冲裁工艺参数优化的准确性。
[Abstract]:Based on the response surface method, the blanking process of sheet metal was simulated by DEFORM-2D software. The mathematical model between blanking process parameters and the length of bright strip of blanking section is established. Through the analysis of the simulation results, it is concluded that the interactive influence of blanking clearance and die cutting edge radius on the length of bright strip is the greatest. Taking blanking speed, blanking clearance and die cutting edge radius as design variables, and taking the length of bright strip as the optimization objective, the response surface model is optimized by using Design Expert software. The optimized blanking parameters are as follows: blanking speed is 14.04 mm s-1, blanking clearance is 8.99 t (t is the thickness of sheet metal), radius of the cutting edge of die is 1.25 t, and the response value of the length of bright strip is 0.834 mm.. In addition, the relative error between the test value and the response value is 11.8, which verifies the accuracy of the response surface method applied to the optimization of blanking process parameters.
【作者单位】：徐州工业职业技术学院;淮阴工学院;
【基金】：连云港市中小企业技术创新项目(CK1411)
【分类号】：TG386.2

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