锻压技术

基于数值模拟的飞机超高强度钢前起外筒模锻件制造

英文标题：Manufacture of die forgings for aircraft ultra-high strength steel front-lifting outer cylinder based on numerical simulation

作者：李蓬川张睿

单位：中国第二重型机械集团德阳万航模锻有限责任公司

关键词：300M超高强度钢飞机起落架模锻成形

分类号：TG316.3

出版年,卷(期):页码：2021,46(9):277-283

摘要：

通过物理边界测定试验，确定了300M钢材料的热辐射系数、与模具的热交换系数和摩擦因数；在同一规格棒材上切取试样，完成了热模拟压缩试验，获得了300M超高强度钢的应力-应变曲线；将物理边界参数和应力-应变曲线导入到有限元模拟软件中，建立了与实际生产工况高度吻合的数值模拟仿真空间。通过全流程的数值模拟技术对坯料成形过程和模锻成形过程进行不断地迭代优化，精准预测了前起外筒模锻件的成形过程，锻件料工比控制在1.2以内，控制了材料消耗，制定出3火次制坯和2火次模锻的短流程工艺方案。锻件一次试制成功，实现了飞机前起外筒模锻件的短流程的稳定制造，获得了外形尺寸合格、组织性能优良的高品质产品。

Thermal radiation coefficient, heat exchange coefficient and friction coefficient with dies of 300M steel were determined by physical boundary measurement test. The stress-strain curve of 300 M ultra-high strength steel was obtained by completion of thermal simulation compression test with cutting samples from billets of the same specification. The physical boundary parameters and stress-strain curve were imported into the finite element simulation software to establish a numerical simulation space highly consistent with the actual production conditions. With the numerical simulation technology on the whole process, the blank forming process and die forging process were continuously iteratively optimized.The forming process of front-lifting outer cylinder die forgings was accurately predicted and the material work ratio of forgings was controlled within 1.2. The material consumption was controlled and the short process schemes of 3-heatings blank-making and 2-heatings die forging was complied. The trial production of forgings was manufactured successfully. The stable manufacturing of the short process for die forgings of aircraft front-lifting outer cylinder was achieved, and the high-quality products with qualified overall dimensions and excellent microstructure and performance were received.

基金项目：

航空核电及石化等领域超大构建高效低成本增材制造技术的应用示范（2018YFB1106500）

李蓬川(1973-)，男，教授级高工 E-mail：rid@163.com

参考文献：

[1]代伟，易幼平，李蓬川，等. 300M 超高强钢起落架外筒模锻件锤锻工艺[J].宇航材料工艺，2012，42(6):100-104.

Dai W, Yi Y P, Li P C, et al.Hammer forging process of outer cylinder die forging of 300M ultra high strength steel landing gear[J]. Aerospace Materials & Technology，2012，42(6):100-104.

[2]赵明杰，黄亮，李昌民，等. 300M钢的热变形行为及热锻成形工艺研究现状[J].精密成形工程，2020，12(6):16-27.

Zhao M J, Huang L, Li C M, et al.Research status of hot deformation behavior and hot forging process of 300M steel[J].Journal of Netshape Forming Engineering, 2020，12(6):16-27.

[3]姜静，王新云，邓磊，等. 起落架外筒锻件局部控流模锻工艺研究[J].兵器装备工程学报，2021，42(2):239-243.

Jiang J, Wang X Y, Deng L, et al. Local flow control die forging process of landing gear outer cylinder forging[J].Journal of Ordnance Equipment Engineering，2021，42(2):239-243.

[4]赵博，许广兴，贺飞，等. 飞机起落架用超高强度钢应用现状及展望[J].航空材料学报，2017，37(6）：1-6.

Zhao B, Xu G X, He F, et al. Application status and Prospect of ultra high strength steel for aircraft landing gear[J].Journal of Aeronautical Materials，2017，37(6）：1-6.

[5]陈荣创，郑志镇，李建军，等. 控温对 300M 钢大型锻件微观组织演化的影响[J].塑性工程学报，2018，25(5)：46-52.

Chen R C, Zheng Z Z, Li J J, et al. Effect of temperature control on microstructure evolution of 300M steel heavy forgings[J].Journal of Plasticity Engineering，2018，25(5)：46-52.

[6]宁静，王敖，苏杰，等. W含量对新型超高强度钢热塑性的影响 [J]. 锻压技术，2020 ,45(9):181-186.

Ning J，Wang A，Su J，et al. Influence of W content on thermoplasticity for new ultra-high strength steel [J]. Forging & Stamping Technology，2020 ,45(9): 181-186.

[7]张华平，李亚，连昌伟. DP980高强钢U形弯曲实验与数值模拟 [J]. 锻压技术，2020 ,45(4):70-75.

Zhang H P，Li Y，Lian C W. Test and numerical simulation of U-shape bending part for DP980 high strength steel [J]. Forging & Stamping Technology，2020 ,45(4): 70-75.

[8]Skubisz P，Sinczak J. Properties of direct-quenched aircraft forged component made of ultrahigh-strength steel 300M[J]. Aircraft Engineering & Aerospace Technology, 2018, 90(5): 713-719.

[9]李洪波，杜敬霞，张艳姝，等. 300M高强钢起落架外筒锻件微观组织演变预测[J].塑性工程学报，2015,22（5）：1-7.

Li H B, Du J X, Zhang Y S, et al. Microstructure evolution prediction of 300M high strength steel landing gear outer barrel forgings[J].Journal of Plasticity Engineering，2015,22（5）：1-7.

[10]肖学峰. 材料热加工技术发展探讨[J].航空精密制造技术，2015，51(2）：31-34.

Xiao X F. Discussion on the development of material hot working technology[J].Aviation Precision Manufacturing Technology，2015，51(2）：31-34.

[11]应俊龙，巢昺轩，蒋克全，等. 超高强度钢的发展及展望[J].新技术新工艺，2018，23(12)：1-4.

Ying J L, Chao M X, Jiang K Q, et al. Development and Prospect of ultra high strength steel[J].New Technology & New Process，2018，23(12)：1-4.

[12]孙艳坤，张威. 民机起落架用材料的发展与研究现状[J].热加工工艺，2018，47(20）：22-29.

Sun Y K, Zhang W. Development and research status of materials for civil aircraft landing gear[J].Hot Working Technology，2018，47(20）：22-29.

[13]张超，赵升吨，卢孟康，等. 4032铝合金活塞的热模锻变形过程有限元分析 [J]. 锻压技术，2019 ,44(11):1-10.

Zhang C，Zhao S D，Lu M K，et al. Finite element analysis on hot die forging deformation process for 4032 aluminum alloy piston [J]. Forging & Stamping Technology，2019,44(11):1-10.

[14]Skubisz P，ukaszek-SoekA. Effect of processing conditions on forge ability and properties of hot andwarm-forged steel 300M [J]. Archives of Metallurgy and Materials,2017, 62(4): 2247-2254.

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