磁力支架零件步进式等厚冲锻成形新工艺

发布时间：2019-03-08 17:28

【摘要】：针对两直臂间距较小、展平时发生干涉的等厚板材磁力支架零件,提出磁力支架零件步进式等厚冲锻成形新工艺,该工艺首先使用冲压制造出两直臂间距较大的板材零件,再分几个工步拉深两直臂的连接载体,逐步缩短两直臂间距直到目标间距为止,每个工步通过等厚冲锻工艺将局部增厚的材料减薄到原板材厚度。运用理论分析和试验方法,分析及优化拉深两直臂连接载体的形状,建立两直臂连接载体的流线型拉深的数学模型,基于该数学模型,以磁力支架零件无工艺缺陷为目标,采用数值模拟优化流线型拉深工艺参数且得到磁力支架等厚冲锻成形的步进系数。研究结果表明,运用步进式等厚冲锻新工艺三个工步可以制造出无工艺缺陷的磁力支架零件,试验结果同数值模拟结果吻合。
[Abstract]:A new step-by-step equal thickness stamping forming process for magnetic support parts of equal thickness plate with small spacing between two straight arms and interference at normal time is presented. Firstly, the sheet parts with large spacing between two straight arms are made by stamping. The connecting carrier of the two straight arms is divided into several step drawing steps, and the distance between the two straight arms is shortened gradually until the target spacing. Each step reduces the locally thickened material to the thickness of the original plate by the equal thickness forging process. The shape of two-arm connecting carrier is analyzed and optimized by means of theoretical analysis and test method, and the mathematical model of streamlined drawing of two-arm connecting carrier is established. Based on this mathematical model, the magnetic support parts are free of process defects. The parameters of streamline drawing process are optimized by numerical simulation and the step coefficient of equal thickness forging of magnetic support is obtained. The results show that three steps of step-by-step equal thickness forging process can be used to produce magnetic support parts without process defects, and the experimental results are in good agreement with the numerical simulation results.
【作者单位】：宁波工程学院机械学院;合肥工业大学材料科学与工程学院;
【基金】：国家自然科学基金(51275251) 浙江省自然科学基金(Y1111068)资助项目
【分类号】：TG316

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