锻压技术

基于关键尺寸的锻造模具寿命预测方法

英文标题：Forging mold life prediction method based on key dimensions

单位：1.南京工程学院汽车与轨道交通学院 2.南京工程学院先进工业技术研究院 3.南京康尼精密机械有限公司

分类号：TG315

出版年,卷(期):页码：2024,49(10):178-183

摘要：

针对模具锻造加工过程中由于摩擦损耗引起尺寸变化而导致失效的问题，提出了1种基于关键尺寸的模具寿命预测方法。首先，基于模具渐变失效原理，构建了锻造模具和锻造工件的关键尺寸与模具寿命的对应关系。然后，研究了锻造模具全生命周期业务场景，给出了模具寿命预测业务逻辑流程，并提出了关键尺寸和模具实际寿命的采集方法。最后，利用关键尺寸和实际寿命，采用不同的拟合算法进行模具寿命预测。实例表明，分析计算得出的拟合函数和拟合优度指数，可针对不同使用场景选用特定拟合算法，从而实现锻造模具寿命的准确预测。

For the problem of failure caused by dimensional changes due to friction losses during the forging process of mold, a mold life prediction method based on key dimensions was proposed. Firstly, based on the principle of gradual failure for mold, the corresponding relationship between the key dimensions of forging mold and forging workpiece and the mold life was constructed. Then, the entire lifecycle business scenario of forging mold was studied, the business logical process for predicting the mold life was provided, and a collection method for key dimensions and actual mold life was proposed. Finally, using key dimensions and actual life, different fitting algorithms were used for mold life prediction. Examples show that the fitting function and the goodness of fitting index obtained from analysis and calculation can used to select specific fitting algorithms for different usage scenarios, so as to realize the accurate prediction of forging mold life.

基金项目：

国家自然科学基金资助项目(51805244)；南京工程学院先进工业技术研究院开放基金项目(XJY202107)

作者简介：王玉国(1979-)，男，博士，副教授,E-mail：wangyuguo@njit.edu.cn

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