T型截面铝合金型材零件成组加工技术研究与应用

陈东东; 邓涛; 门向南; 仝朋艳; 王永军; 张建

doi:10.13433/j.cnki.1003-8728.20220189

T型截面铝合金型材零件成组加工技术研究与应用

doi: 10.13433/j.cnki.1003-8728.20220189

1.
航空工业成都飞机工业（集团）有限责任公司，成都　610092
2.
西北工业大学机电学院，西安　710072

基金项目: 国家自然科学基金项目（51275420）

详细信息

作者简介:
陈东东，工程师，746532370@qq.com

通讯作者:
王永军，副教授，博士，wyongjun@nwpu.edu.cn

中图分类号: TG386.4
计量
- 文章访问数: 48
- HTML全文浏览量: 23
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2021-03-11
- 网络出版日期: 2024-03-08
- 刊出日期: 2024-02-01

Study on Group Technologyof T-section Aluminum Alloy Profile Parts and Application

1.
Chengdu Aircraft Industry (Group) Co., Ltd., Chengdu 610092, China
2.
School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 针对目前飞机T型材零件单件弯曲成形效率低成形精确差的问题，提出了T型材弯曲件成组拉弯成形的成组加工方法。基于截面尺寸、引导线的曲率半径等信息建立了成组分析算法，对T型材进行分组，使用长型材拉弯成形后切割分段得到符合精确外形要求的T型材零件。通过理论计算、模拟分析和拉弯试验，验证了T型材拉弯成形成组加工技术的可行性，该方法提高了零件的制造效率和成形精度，可以大幅度降低人工矫正的工作量和加工成本。
- T型材零件 /
- 成组技术 /
- 有限元方法 /
- 拉弯成形
Abstract: A group processing method was proposed for the problem of low forming efficiency and poor forming accuracy in single-piece stretch bending forming with T-section in this paper.Based on the section size and radius of curvature of guide line, the analysis algorithm of group technology was established. T-section profile was grouped, and the long profile was formed and cut into sections to obtain T-section parts that meet the requirements of precise shape. Through the calculation, simulation analysis, and stretch bending tests, the feasibility of the group technology of forming T-section profile by stretch bending was verified. This method can improve the manufacturing efficiency and forming accuracy of parts, and greatly reduced the workload and processing cost of manual correction.
- T-section profile /
- group technology /
- finite element method /
- stretch bending forming

HTML全文

图 1 T型材零件数模

Figure 1. Digital model of T profile part

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图 2 T型材截面尺寸示意图

Figure 2. Schematic diagram of section size of T profile

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图 3 T型材拉弯成形过程中模具和型材截面示意图

Figure 3. Schematic diagram of die and profile section in the process of T profile stretch bending

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图 4 传统型材拉弯流程

Figure 4. Traditional profile stretch bending process

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图 5 型材零件拉弯成组加工流程

Figure 5. Flow chart of group processing of profile stretch bending

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图 6 引导线几何示意图

Figure 6. Geometric diagram of the guide line

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图 7 不高同半径变化率下的弦变化量

Figure 7. Variation of chord heights under different radius change ratios

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图 8 不同弦高变化量下的半径变化率

Figure 8. Radius change ratio under different chord height changes

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图 9 T型材拉弯成形模型几何信息

Figure 9. Geometric information of T profile stretch-bending forming model

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图 10 R2000结果云图

Figure 10. R2000 result cloud image

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图 11 R2000回弹结果

Figure 11. R2000 springback result

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图 12 提取引导线坐标

Figure 12. Extracting guide line coordinates

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图 13 型材拉弯成形拉弯试验

Figure 13. Profiles stretch-bending test

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表 1 T型材成组化编码分类要素

Table 1. Group coding and classification elements of T profiles

Ⅰ	Ⅱ	Ⅲ	Ⅳ	Ⅴ	Ⅵ
弦板宽度	弦板厚度	腹板高度	腹板厚度	长度	半径

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表 2 零件编码含义

Table 2. Meaning of part coding mm

代号	0	1	2	3	4	5	6	7	8	9
Ⅰ	50~60	60~70	70~80	80~90	90~100	100~110	110~120	120~130	130~140	140~150
Ⅱ	0~2	2~4	4~6	6~8	8~10
Ⅲ	80~140
Ⅳ	0~2	2~4	4~6	6~8	8~10	10~12	12~14	14~16	16~18
Ⅴ	1900~2000	2000~2100	2100~2200	2200~2300	2300~2400	2400~2500	2500~2600	2600~2700	2700~2800	2800~2900
Ⅵ	≤200	>200

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表 3 某项目某部件T型材成组加工工装统计

Table 3. Statistics of T profile group processing tooling for a certain part of B767-300

序号	材料规格	工艺方案	成形零件项数	一次拉弯件数
1	TMS60-9399	成组加工	56	21
2	TMS60-27356	成组加工	5	22
3	TMS60-27316	成组加工	1	20
4	TMS60-25891	成组加工	2	20

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表 4 某项目某部件T型材零件截面几何尺寸统计

Table 4. Statistics on the section geometrical sizes of T section of the certain part of the B767-300

规格	项数	A/ in	B/ in	T/ in	r/ in	腹板高度/mm
TMS60-27356	4	4.4	3.7	0.08	0.12	≤125.5
TMS60-9399	16	2.2	5.15	0.1	0.13	≤104
TMS60-27814	14	2.5	5.3	0.1	0.13	≤105
TMS60-21666	1	2	4.1	0.08	0.125	73.5
TMS60-30966	23	3.1	4.5	0.1	0.125	≤102
TMS60-10074	3	2.4	3.15	0.1	0.16	≤105
TMS60-27316	1	4	5.1	0.09	0.1	86.5

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表 5 某项目某部件T型材引导线几何尺寸统计

Table 5. Statistics on the section geometrical sizes of T profile guide line of the certain part of B767-300

规格	项数	长度L/mm	弯曲半径R/mm
TMS60-27356	4	≤200	1项R2450、 3项R2100
TMS60-9399	16	≤200	R2450
TMS60-27814	14	≤200	R2450
TMS60-21666	1	≤200	R2100
TMS60-30966	23	≤200	R2100
TMS60-10074	3	≤200	R2100
TMS60-27316	1	≤200	R2450

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表 6 引导线几何参数

Table 6. Geometric parameters of guide line

引导线类别	弯曲半径/mm	弯曲角度/(°)	弦长/mm
R2100	2100	5.457	199.924
R2450	2450	4.677	199.945

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表 7 满足成形精度引导线半径和弦长的误差、数值范围

Table 7. Error and value range of guide line radius and chord length to meet forming accuracy

引导线类别	弯曲半径误差极值/mm	弯曲半径范围/mm	弦长误差极值/mm	弦长范围/mm
R2100	440.583	1659.417~2540.583	20.984	178.940~220.909
R2450	599.8332	1850.167~3049.833	24.486	175.458~224.431

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表 8 引导线半径回弹前后变化

Table 8. Changes of the radius of the guide line before and after springback

试件编号	理论半径/ mm	回弹后半径/mm	回弹量/ mm	回弹率/ %
R2000	2000	2055.24	110.47	2.7

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表 9 拉弯试验回弹前后弯曲半径变化

Table 9. Change of bending radius before and after springback in stretch-bending test

试件编号	回弹前半径/mm	回弹后半径/mm	回弹量/ mm	回弹率/ %	半径变化率/%
R2000	2023.81	2065.56	41.75	2.1	3.3

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