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铝合金锻件残余应力和变形关系分析探讨

罗喜东 陈龑斌

罗喜东,陈龑斌. 铝合金锻件残余应力和变形关系分析探讨[J]. 机械科学与技术,2023,42(2):241-245 doi: 10.13433/j.cnki.1003-8728.20230106
引用本文: 罗喜东,陈龑斌. 铝合金锻件残余应力和变形关系分析探讨[J]. 机械科学与技术,2023,42(2):241-245 doi: 10.13433/j.cnki.1003-8728.20230106
LUO Xidong, CHEN Yanbin. Analysis and Discussion on the Relationship between Residual Stress and Deformation of Aluminum Alloy Forgings[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(2): 241-245. doi: 10.13433/j.cnki.1003-8728.20230106
Citation: LUO Xidong, CHEN Yanbin. Analysis and Discussion on the Relationship between Residual Stress and Deformation of Aluminum Alloy Forgings[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(2): 241-245. doi: 10.13433/j.cnki.1003-8728.20230106

铝合金锻件残余应力和变形关系分析探讨

doi: 10.13433/j.cnki.1003-8728.20230106
详细信息
    作者简介:

    罗喜东(1970−),研究员级高级工程师,硕士研究生,研究方向为飞机制造工艺、信息化专业,luoxidong@saic.avic.com

  • 中图分类号: TG316

Analysis and Discussion on the Relationship between Residual Stress and Deformation of Aluminum Alloy Forgings

  • 摘要: 铝合金锻件在锻造、切削、热处理等加工过程会产生残余应力,当金属内部残余应力平衡时,金属组织性能较高,当金属内部残余应力失衡时,金属内应力发生释放产生变形现象,金属组织性能将有所下降。本文以变形铝合金锻件为研究对象,对残余应力和变形之间的关系分析,并提出预防措施和消除变形的方法。
  • 图  1  铝合金锻件毛坯翘曲变形

    图  2  支座

    表  1  机械性能试验报告

    序号图号材料牌号炉批号抗拉强度/(kg·m−2屈服点/(kg·m−2延伸率/%是否变形
    1XX-04**-82A50-CS$ {4{\text{-}}1463}_{\mathrm{M}71}^{1{\text{-}}20} $43.2 ~ 43.733.6 ~ 34.914.8 ~ 16.8
    2$ {3{\text{-}}1233}_{\mathrm{M}69}^{2{\text{-}}24} $42.333.2 ~ 34.816.2 ~ 20.1
    3$ {3{\text{-}}168}_{\mathrm{M}60}^{1{\text{-}}46} $45.3 ~ 46.537.2 ~ 37.612.4 ~ 13.8
    性能指标≥39≥28≥10
    下载: 导出CSV

    表  2  刀具的典型切削参数

    操作材料切削性类别切削速度Vc/(m·min−1副后角α′/(°)纵向前角γ/(°)进给量f/(mm·r−1切削深度ap/mm冷却剂
    粗车 高速钢
    200 ~ 400
    100 ~ 250
    9 ~ 12
    8 ~ 10
    30 ~ 40
    20 ~ 30
    ≤1
    0.2 ~ 0.5
    3 ~ 15
    3 ~ 15

    硬质合金
    600 ~ 1200
    200 ~ 400
    7 ~ 10
    7 ~ 10
    20 ~ 30
    10 ~ 20
    0.3 ~ 0.6
    0.25 ~ 0.6
    3 ~ 15
    3 ~ 15

    精车 高速钢
    400 ~ 900
    200 ~ 500
    8 ~ 10
    7 ~ 9
    40 ~ 50
    30 ~ 40
    0.05 ~ 0.3
    0.03 ~ 0.25
    0.3 ~ 2.5
    0.3 ~ 2.5
    乳液
    或切削油
    硬质合金
    ≤2400
    250 ~ 700
    8 ~ 10
    7 ~ 9
    20 ~ 30
    10 ~ 20
    ≤0.15
    0.05 ~ 0.1
    0.3 ~ 2.5
    0.3 ~ 2.5
    乳液
    或切削油
    下载: 导出CSV

    表  3  铝合金的典型铣削参数

    操作材料切削性类别铣削速度
    Vc/(m·min−1
    主间隙角
    α/(°)
    倾斜角
    γ/(°)
    进给量
    f/(mm·r−1
    铣削深度
    ap/mm
    螺旋线角
    γ/(°)
    冷却剂
    粗铣 高速钢
    300 ~ 600
    150 ~ 400
    8
    6
    25
    20
    0.1 ~ 0.5
    0.1 ~ 0.5
    2 ~ 20
    2 ~ 20
    30 ~ 40
    ≤30

    乳液
    硬质合金
    ≤2500
    300 ~ 800
    8
    6
    20
    15
    0.1 ~ 0.6
    0.1 ~ 0.6
    2 ~ 20
    2 ~ 20
    30 ~ 40
    ≤30

    精铣 高速钢
    ≤1500
    250 ~ 800
    12
    10
    30
    25
    0.03 ~ 0.1
    0.03 ~ 0.1
    ≤0.5
    ≤0.5
    30 ~ 40
    ≤30
    乳液
    乳液或油
    硬质合金
    ≤3000
    500 ~ 1500
    12
    10
    25
    20
    0.03 ~ 0.1
    0.03 ~ 0.1
    ≤0.5
    ≤0.5
    30 ~ 40
    ≤30
    乳液
    乳液或油
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-11-25
  • 网络出版日期:  2023-03-27
  • 刊出日期:  2023-02-25

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