锻造变形过程中孔洞缺陷闭合行为Q-Value法研究

Study on the Closure Behavior of Void Defects During Forging Deformation by Q-Value Method

以宽厚板支承辊锻造所用大型钢锭为研究对象,通过对模拟软件中用户子程序二次开发,运用Q-Value阈值法对大锻件内部孔洞缺陷在锻造变形过程中的闭合行为进行预测,从而极大简化了传统孔洞类缺陷变形的模拟思路,提高了模拟效率。

Taking the large ingot used in wide and thick plate back-up roll forging as the research object,the closure behavior of void defects in the forging process of large forgings is predicted by Q-Value threshold method through the secondary development of user subroutine in the simulation software.Thus,the simulation idea of traditional void defect deformation is greatly simplified and the simulation efficiency is improved.