Transactions of Materials and Heat Treatment

Title：Wear analysis on crankshaft mold based on Archard model

Authors： Li Chaokun Zeng Qi Liu Qingsheng

Unit： Beijing Research Institute of Mechanical ＆ Electrical Technology Co. Ltd. CAM

KeyWords： Archard model mold wear crankshaft deformation temperature forming speed lubrication conditions

ClassificationCode：TG316

year,vol(issue):pagenumber：2023,48(11):167-173

Abstract：

In order to explore the wear condition of a certain type of crankshaft mold in the production process, based on the modified Archard wear model, the distribution and change laws for wear depth for the crankshaft mold during the hot forging process were simulated and studied by software Deform-3D. Then, ten characteristic points were taken in the mold cavity, and the wear depth of each point after simulation was obtained, which was basically consistent with the actual situation. At the same time, the influences of different preheating temperatures, extrusion speeds and lubrication conditions on the maximum wear depth of blank-making mold were explored, and the results of each point were fit to obtain the fitting curve. The simulation results show that the maximum wear depth of mold occurs near points P1 to P6, and the mold wear depth in the blank-making process is greater than that in the pre-forging and final forging processes. When the mold preheating temperature is 250-300 ℃, the forming speed is 300 mm·s-1 and the friction coefficient is 0.3, the maximum wear depth of mold is the smallest. Thus, the simulation results can provide a reference for subsequent production process optimization, as well as the prediction and improvement of mold life.

Funds：

工业强基工程（TC180A3Y1/18）

作者简介：李朝昆（1996-），男，硕士研究生，E-mail：444580543@qq.com；通信作者：曾琦（1974-），女，博士，研究员，E-mail：laxzengq@163.com

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