[1]卢洋①,李自胜①,肖晓萍②,等.工艺参数对空心药柱压制成型后回弹的影响[J].爆破器材,2025,54(01):21-27.[doi:10.3969/j.issn.1001-8352.2025.01.004]
　LU Yang,LI Zisheng,XIAO Xiaoping,et al.Influence of Process Parameters on the Springback of Hollow Grain Formed by Pressing Molding[J].EXPLOSIVE MATERIALS,2025,54(01):21-27.[doi:10.3969/j.issn.1001-8352.2025.01.004]
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工艺参数对空心药柱压制成型后回弹的影响()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
54
期数:
2025年01
页码:
21-27
栏目:
爆炸材料
出版日期:
2025-01-09

文章信息/Info

Title:
Influence of Process Parameters on the Springback of Hollow Grain Formed by Pressing Molding
文章编号:
5960
作者:
卢洋①; 李自胜①; 肖晓萍②; 赵海波①
①西南科技大学制造科学与工程学院（四川绵阳， 621010）
②西南科技大学工程技术中心（四川绵阳， 621010)
Author(s):
LU Yang①;  LI Zisheng①;  XIAO Xiaoping②;  ZHAO Haibo①
① School of Manufacturing Science and Engineering, Southwest University of Science and Technology (Sichuan Mianyang, 621010)
② Engineering Technology Center, Southwest University of Science and Technology (Sichuan Mianyang, 621010)
关键词:
PBX;  粉末压制;  Shima-Oyane;  工艺参数;  药柱回弹
Keywords:
PBX;  powder pressing;  Shima-Oyane;  process parameter;  grain rebound
分类号:
TQ560.7; TJ55
DOI:
10.3969/j.issn.1001-8352.2025.01.004
文献标志码:
A
摘要:
针对解决高聚物黏结炸药（polymer bonded explosives, PBX）粉末压制成型后药柱回弹量过大，导致药柱密度分布不均匀并影响药柱质量的问题，基于连续介质力学炸药粉末模压成型方法，采用Shima-Oyane材料模型，建立了JOB9003空心药柱压制模型，分析了不同工艺参数对空心药柱压制成型后回弹量的影响。研究结果表明：Shima-Oyane材料模型能够有效地分析空心药柱压制后的回弹量。在轴向上，药柱的回弹量表现为两端大、中间小；在径向上，内、外圆区域回弹量波动较大，中间层区域变化较小。当压制力20 MPa、保压时长60 s、压制速度2 mm/s时，药柱的回弹量最低，为0.271 mm；平均相对密度最大，为0.974。此时，药柱的致密化程度高，成型质量较好。
Abstract:
The springback of grain formed by pressing molding from polymer bonded explosive (PBX) powder is too large, resulting in uneven density distribution of the grain and affecting the quality of the grain. Based on the pressing molding method of explosive powder in continuum mechanics, a hollow grain pressing model of JOB-9003 was established using Shima-Oyane material model. And the influence of different process parameters on the springback of hollow grain formed by pressing molding was analyzed. The results show that Shima-Oyane material model can effectively analyze the springback of hollow grain formed by pressing molding. The springback of the grain is larger at both ends and smaller in the middle in the axial direction. In the radial direction, the springback fluctuations in the inner and outer circular areas are larger, while the changes in the middle layer areas are smaller. When the pressing force is 20 MPa, the holding time is 60 s, and the pressing speed is 2 mm/s, the springback of the grain is the lowest, at 0.271 mm. And the average relative density is the highest, at 0.974. The densification degree of the grain is high, and the molding guality is good.

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相似文献/References:

[1]乔羽①,刘杰①,肖磊①,等.纳米RDX基PBX混合炸药的热分解特性和感度研究[J].爆破器材,2016,45(03):17.[doi:10.3969/j.issn.1001-8352.2016.03.004]
　QIAO Yu,LIU Jie,XIAO Lei,et al.Study on Thermal Decomposition Characteristics and Sensitivities of Nano-RDX Based PBX[J].EXPLOSIVE MATERIALS,2016,45(01):17.[doi:10.3969/j.issn.1001-8352.2016.03.004]

备注/Memo

备注/Memo:
收稿日期：2024-06-26
基金项目：四川省科技计划项目（2017GZ0350，2018GZ0083）
第一作者：卢洋（1995—），男，硕士研究生，研究方向为含能材料压制成型及数值仿真。E-mail:bzlyy@mails.swust.edu.cn
通信作者：李自胜（1976—），男，副教授，博士，研究方向为智能制造技术、数字孪生技术。E-mail:lizisheng@swust.edu.cn
更新日期/Last Update: 2025-01-10