论文部分内容阅读
为提高生产效率和材料利用率,针对大尺寸齿圈毛坯的特点,提出了以棒料为坯料生产大尺寸齿圈毛坯的新工艺。利用数值仿真分析方法研究其关键成形工艺,对所设计的一次成形可对焊圆环的辊圆成形装置建立数学模型,对棒料成形可对焊圆环过程进行数值模拟并进行实验验证,分析了棒料成形的可行性。模拟和实验结果表明,依据仿真结果设计的辊圆成形装置可实现棒料成形,该装置具有实用性。对齿圈毛坯的模锻过程进行数值仿真,获得了齿圈毛坯成形过程中的关键工艺参数,对实际生产具有指导意义。
In order to improve production efficiency and material utilization, aiming at the characteristics of large-size ring gear blank, a new technology of producing large-size ring gear blank with bar material is proposed. The key forming process is studied by means of numerical simulation and analysis. The mathematic model is established for the designed roll forming device with one-pass butt-welding toroid. The process of the butt-welding of the bar material is numerically simulated and verified by experiments Feasibility of bar forming. Simulation and experimental results show that the roll forming device designed according to the simulation results can realize the bar material forming, and the device is practical. The die forging process of ring gear is numerically simulated, and the key process parameters in the forming process of ring gear are obtained, which is of guiding significance to actual production.