CAJ | 학술논문

为快速获取材料性能参数，解决生产过程中由于材料性能波动引起的质量问题，以冲压生产常用的冲裁工艺为切入点，给出一种直接从冲裁过程在线反求材料参数的方法。该方法以冲裁过程中在线实测的载荷-行程曲线为依据，结合有限元仿真结果，采用Dow nhill Simplex优化算法反求材料参数。为验证方法的可靠性，以3个不同厂家的同一牌号板料为研究对象，通过自主设计的测量系统在线测量冲裁过程中的载荷-行程曲线，反求的材料参数与拉伸性能实验结果的对比表明，该方法具有较高的精度。
위쾌속획취재료성능삼수，해결생산과정중유우재료성능파동인기적질량문제，이충압생산상용적충재공예위절입점，급출일충직접종충재과정재선반구재료삼수적방법。해방법이충재과정중재선실측적재하-행정곡선위의거，결합유한원방진결과，채용Dow nhill Simplex우화산법반구재료삼수。위험증방법적가고성，이3개불동엄가적동일패호판료위연구대상，통과자주설계적측량계통재선측량충재과정중적재하-행정곡선，반구적재료삼수여랍신성능실험결과적대비표명，해방법구유교고적정도。
In order to solve the quality problem of stamping parts caused by the fluctuations of the material properties ,it is impor-tant to directly identify the material parameters during the forming process . In this paper ,an identification approach of the mate-rial parameters based on blanking process is presented . This method is to reverse material parameters by making the least differ-ence of the force-stroke curves between the actual measurement and the simulation results for the blanking process . The material parameters of three similar materials obtained by this method are compared with the results from the tensile tests . The results in-dicate that the method possesses pretty good accuracy .