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Abstract：
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Three different pre-forging molds were designed according to product structure drawing of a 840D type wheel, and the pre-forging and precision forging processes of wheel were simulated by finite element software DEFORM-3D for plastic precision forging. Then, by comparing and analyzing equivalent strain, equivalent stress, temperature and mold filling of wheel after simulation, the rationality of mold cavity design for the three different schemes was discussed respectively. The results show that the equivalent strain of wheel in the third scheme meets the requirements of the equivalent strain greater than 0.69-1.10, the maximum equivalent stress is 409 MPa, and the equivalent stresses of other parts except the hub part are smaller,which is better than other schemes. Furthermore, the main temperature distribution range of forgings is 1100~1240 ℃, the distribution of temperature is relatively uniform, and the uniformity of metal flow is better than that of the other two schemes. After combining with the correction of field test data, the work done has a certain reference effect on the field.
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Funds：
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国家自然科学基金资助项目（51875501）；山西省重点研发计划（重点）高新领域项目 (201703D111005)；山西省研究生联合培养基地人才培养项目（2018JD32）
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AuthorIntro：
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孙晓明（1992-），男，硕士研究生，E-mail：sunxiaoming92@163.com；通讯作者：杜晓钟（1974-），男，博士，教授，博士生导师，E-mail：duxz@tyust.edu.cn
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Reference：
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