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等高线成形轨迹是现行金属板料单点渐进成形的主要加工方式。针对板料渐进成形过程中由于成形工具头挤压造成的工具头下压点过于集中产出的成形件局部凹陷、破裂及成形件整体扭曲和板厚分布不均匀等问题,提出了一种结合商业Unigraphics NX 10.0(UG 10.0)软件轮廓铣削加工中混合加工策略和沿部件斜进刀方式结合的金属板料单点渐进成形等高线成形轨迹生成的方法。Abaqus有限元数值模拟和实验分析表明,使用上述方法成形的成形件不仅避免了成形表面局部凹陷和破裂问题,还解决了成形件整体扭曲和板厚分布不均匀等问题。
Contour line forming trajectory is the current single-point sheet metal progressive forming the main processing methods. Aiming at the problems such as the partial depression of the forming part under the head under the tool head extrusion due to the extrusion of the forming tool head during the gradual forming process of the sheet metal and the overall distortion of the forming part and the uneven thickness distribution of the forming part, Commercial Unigraphics NX 10.0 (UG 10.0) A method of creating a single-point incremental profile contour line for forming sheet metal in a combination of a machining strategy and a ramp-in tool along the profile in software profiling. Abaqus finite element numerical simulation and experimental analysis show that the forming part formed by the above method not only avoids the problems of local depression and rupture of the forming surface but also solves the problems of the integral distortion of the forming part and the uneven thickness distribution.