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考虑到拉丝工艺过程中线振动的影响而建立一个能精确预测磨具磨损的模型。利用该模型研究了线振动的影响、磨损轮廓的变化、振荡的产生。出现在磨具和突起之间的线振动服从偏微分方程,也称波动方程。该方程是一个与拉丝长度、张力、密度和初始线速度有关的函数。用商业 Abaqus 软件来模拟拉丝工艺过程,并应用Archard 磨损模型预测模具磨损。在生产 5 t AISI 1010 线材的情况下,将预测的磨损与实际的磨损进行对比。磨具是布氏硬度为 HB682 的碳化钨。考虑了线振动影响的预测结果与实验结果相当一致,表明所建立的模型能够精确预测存在振荡的磨具磨损。
Taking into account the impact of wire vibration during the drawing process, a model that accurately predicts abrasive wear is established. The model was used to study the influence of linear vibration, the change of wear profile and the generation of oscillation. The line vibration appearing between the abrasive and the protrusion obeys the partial differential equation, also known as the wave equation. The equation is a function of the draw length, tension, density and initial linear velocity. The drawing process was modeled using commercial Abaqus software and the Archard wear model was used to predict die wear. In the case of a 5 t AISI 1010 wire, the predicted wear is compared to the actual wear. Abrasives are Brinell hardness HB682 tungsten carbide. The prediction results considering the influence of line vibration are in good agreement with the experimental results, indicating that the established model can precisely predict the abrasion of oscillating abrasive tools.