摘要
在L形截面环形锻件的生产中,如果毛坯形状和尺寸设计不合理,容易在轧制过程中出现拉料、夹皮和毛刺等缺陷,并直接影响到模具的寿命。根据体积不变原理和锻造过程中金属的分配原则,提出了基于刚性平移原理的制坯工艺,选择合理的分界面,优化设计了毛坯,从而得出罩模的形状和尺寸,并借助有限元数值模拟对轧制过程进行模拟,优化分析制坯过程。实验证明,采用该制坯工艺设计罩模可以有效的避免上述缺陷,模拟结果与实验吻合。
During the production of L-shaped section ring forgings,if the dimensions and structure of the blank are designed unreasonable,then it is prone to engender defects of groove,clip skin and burr in rolling process,which directly affect the service life of mould.According to its volume principle and metal distribution principle in forging process,and based on rigid translation principle,the blocking technology was put forward,then the interface was correctly chosen,the blank was designed optimally,and the shape and dimensions of mask mode were confirmed.With the finite element numerical simulation,the rolling process was simulated and analyzed optimally.The experiments show that the mask mode designed by this technology can effectively avoid that defects,and the simulation results coincide with experimental data well.
出处
《锻压技术》
CAS
CSCD
北大核心
2011年第5期14-18,共5页
Forging & Stamping Technology
关键词
L形截面环锻件
刚性平移原理
制坯
罩模
有限元模拟
L-shaped section ring forgings
rigid translation principle
blank
mask mode
finite element modelling
