摘要
针对废旧油管和接箍锻件的特点和成形工艺分析,设计出利用废旧油管制备接箍件的模锻成形工艺和模具。模块化组合式的模具结构设计、矩形沟槽式夹紧镶块结构、芯轴的倒锥设计及对其前端的球面化处理,大大提高了模具的更换和维修效率,同时降低了模具的使用成本,有效解决了模锻过程中坯料的装夹定位稳定性问题,且提高了成形过程的变形均匀性和开闭模具的稳定性。通过对接箍件成形的有限元数值模拟,验证了模锻成形工艺及模具设计的合理性与可行性。采用废旧油管通过模锻成形工艺制备接箍件,为采油行业大量废弃的油管提供了一条高附加值利用的有效途径。
The forging process and its corresponding die and mould of coupling made by used oil pipe were designed by analyzing the properties of used oil pipe and forging forming process.The die and mould structure was designed by adopting modular and combined type.The inserts with rectangular grooves were used to clamping the blank of coupling.Meanwhile,the reversed cone type design of mandrel was employed and the spherical treatment for its front-end was conducted.Based on the above measures,the efficiency of replacement and maintenance for the die and mould was greatly improved and the use-cost of die and mould decreased observably.Clamping positioning stability of the blank was effectively resolved during the forging process.Moreover,the deform uniformity and stability of opening and closing for the die and mould was well protected during the forming process.The rationality and feasibility of the die-forging process and mold design were validated by the finite element numerical simulation.An effective exploitative way of high value-added is provided to the oil extraction industries through fabricating coupling with used oil pipe.
出处
《锻压技术》
CAS
CSCD
北大核心
2012年第3期15-19,共5页
Forging & Stamping Technology
关键词
废旧油管
接箍
模锻工艺
数值模拟
used oil pipe
coupling
die-forging process
numerical simulation
