锻压技术

半球形壳体旋压工艺与模具设计

英文标题：Spinning process and die design for hemispherical shell

作者：王幸运梁静张小明林小辉

分类号：TG306

出版年,卷(期):页码：2017,42(6):145-149

摘要：

通过对半球形壳体类零件旋压成形过程进行分析，提出了半球形壳体两模法旋压工艺路线，通过制作模具，最终旋压获得了满足尺寸要求的半球形壳体。对钢、钛、紫铜、纯银等材料半球形壳体进行旋压验证并获得成功。结果表明：两模法用于半球形、偏心半球、椭球形等薄壁壳体类零件的旋压，能减少壳体口部金属旋压变形次数，减小加工硬化，有利于提高壳体最终尺寸精度。采用预制冲压板坯结合尾顶的合理使用，当芯模转速为150~250 r·min-1，旋轮进给比为1~3 mm·r-1时能获得较好的旋压件表面质量。

Based on the analysis of the spinning forming process for hemispherical shell parts, twocavity method producing hemispherical shell was presented, and the hemispherical shell with the required size were obtained by die making and spinning. Then, hemispherical shells produced by steel, titanium, copper, fine silver and other materials were spun successfully. The results show that twocavity method for spinning hemispherical, eccentric hemisphere and ellipsoid shell can reduce the passes of the metal deformation and hardening, and the final size of the shell precision can be elevated. Finally, the spinning parts with a better surface quality can be obtained by the reasonable use of the prepressing slab and the tail under the rotating speed of 150-250 r·min-1 and feed rate of 1-3 mm·r-1.

基金项目：

陕西省西安市科技计划项目(CY1312)

王幸运（1985-），男，硕士，工程师

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