工具技术2024,Vol.58Issue(3) :102-106.DOI:10.3969/j.issn.1000-7008.2024.03.017

大型整体壁板加工变形控制技术研究

Research on Deformation Control Technology of Large Integral Wall Panel Machining

周益星 陈云 邓枫 胡小辉
工具技术2024,Vol.58Issue(3) :102-106.DOI:10.3969/j.issn.1000-7008.2024.03.017

大型整体壁板加工变形控制技术研究

Research on Deformation Control Technology of Large Integral Wall Panel Machining

周益星 1陈云 1邓枫 1胡小辉1
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作者信息

  • 1. 成都飞机工业(集团)有限责任公司
  • 折叠

摘要

针对典型大型整体壁板数控加工后变形量高达40mm且无法喷丸校形的问题,采用有限元仿真研究毛坯初始残余应力与零件变形量的相关性,通过改变加工顺序,优化加工过程材料去除策略,有效控制整体壁板的加工变形.结合实际工艺方案,通过合理选择切削参数,即采用小直径刀具径向逐层走刀,切削轨迹由沿宽度方向调整为沿长度方向,减少零件加工变形量.通过实例加工验证了该方法能有效解决大型整体壁板加工变形的问题.

Abstract

In order to solve the problem that the deformation of large integral wall board is as high as 40mm after NC machining and can not be shot-peening.The correlation between initial residual stress of blank and the deformation of parts by finite elemtnt simulation method is proposed.The material removal strategy is optimized to effectively control the process deformation of the monolithic wall panels.According to the actual process,the deformation of the parts can be reduced by selecting cutting parameters reasonably,that is using small diameter cutters to pass the tools layer by layer,and adjusting the cutting path from the width direction to the length direction.It is proved that this method can effectively solve the prob-lem of machining deformation of large-scale monolithic panels.

关键词

整体壁板/有限元仿真/去除策略/切削参数/加工变形

Key words

integral wall panel/finite element simulation/removal strategy/cutting parameter/machining deformation

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出版年

2024
工具技术
成都工具研究所

工具技术

CSTPCD北大核心
影响因子:0.147
ISSN:1000-7008
参考文献量7
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