钴基弹簧钢零件成形工艺及激光切割机的研究与应用  

Research and application of forming process for cobalt-based spring steel parts and laser cutting machine

作　　者：王悉颖 郭全庆 孟文博 赵婷婷 孟庆海 郑子昂 Wang Xiying;Guo Quanqing;Meng Wenbo;Zhao Tingting;Meng Qinghai;Zheng Zi′ang(AVIC Xi′an Aircraft Industry Group Co.,Ltd.,Xi′an 710089,China)

机构地区：[1]中航西安飞机工业集团股份有限公司,陕西西安710089

出　　处：《锻压技术》2024年第12期66-72,共7页Forging & Stamping Technology

摘　　要：针对新型材料钴基弹簧钢零件成形中弹性大、难以贴胎优化成形工艺、手工修整量大的缺陷,分析了零件外形结构及材料性能,并借助有限元软件Dynaform对其拉深成形过程进行数值模拟,优化成形工艺提出将回弹量补偿于工艺型面中并设计专用的模具,拉深成形后使用五轴激光切割机进行外形切割,最终生产出合格的产品。不仅有效提高了零件的表面质量及成形精度,还大幅缩短了生产周期、降低了工人的劳动强度。试验结果表明,钴基弹簧钢的回弹大,但延展性较好,在拉深成形过程中选择合理的工艺型面设计与拉延筋结构可改善拉深成形效果,且通过回弹补偿修正得到的模具可有效改善回弹缺陷。In response to the defects of high elasticity,difficulty in adhering to the tire,and large manual trimming in the forming of cobalt-based spring steel parts,the external structure and material properties of parts were analyzed,and the numerical simulation of the deep drawing process was carried out by finite element software Dynaform to optimize the forming process.Then,the springback amount was compensated in the process surface,and a special die was designed.Furthermore,after deep drawing,the shape was cut by using a five-axis laser cutting machine,and finally the qualified products were produced,which not only effectively improved the surface quality and forming accuracy of the parts,but also significantly shortened the production cycle and reduced the labor intensity of workers.The experimental results show that the cobalt-based spring steel has a large springback,but good ductility is good.In the deep drawing process,the reasonable process surface design and drawbead structure can improve the deep drawing effect,and the die obtained through springback compensation correction can effectively improve the springback defects.

关 键 词：钴基弹簧钢 拉延筋 回弹补偿 五轴激光切割机 拉深成形 

分 类 号：TG386[金属学及工艺—金属压力加工]