东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (9): 95-101.DOI: 10.12068/j.issn.1005-3026.2025.20230263

• 机械工程 • 上一篇    下一篇

金属材料挤出成型生坯试件的静力学性能

姜世杰1,2, 李曙光1(), 许子沼1, 王菲1   

  1. 1.东北大学 机械工程与自动化学院,辽宁 沈阳 110819
    2.辽宁省机械装备动力学可靠性重点实验室,辽宁 沈阳 110819
  • 收稿日期:2023-09-07 出版日期:2025-09-15 发布日期:2025-12-03
  • 通讯作者: 李曙光
  • 作者简介:姜世杰(1985—),男,辽宁营口人,东北大学副教授,博士.
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(N2303019)

Static Mechanical Properties of Green Compact Specimens Fabricated by Metal Material Extrusion

Shi-jie JIANG1,2, Shu-guang LI1(), Zi-zhao XU1, Fei WANG1   

  1. 1.School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110819,China
    2.Key Laboratory of Dynamics Reliability of Mechanical Equipment,Liaoning Province,Shenyang 110819,China.
  • Received:2023-09-07 Online:2025-09-15 Published:2025-12-03
  • Contact: Shu-guang LI

摘要:

针对金属材料挤出成型(metal material extrusion,MME)增材制品静力学性能研究不足的问题,首先制备了3种不同配比的17-4PH不锈钢粉末/聚合物复合丝材;然后利用普通材料挤出成型设备完成了静力学性能实验生坯试件的准备工作,以确定自制丝材的可成型性;最后通过拉伸、压缩及弯曲性能实验,分析其静力学性能并探究不同金属粉末填充率的影响.结果发现:自制的复合丝材能够成型质量稳定的生坯制品;当17-4PH不锈钢粉末填充率由40%提高至50%时,试件的拉伸强度降低约7.8%,压缩强度降低约39.2%,弯曲强度降低约30%.

关键词: 金属材料挤出成型, 17-4PH不锈钢粉末, 聚合物复合丝材, 静力学性能

Abstract:

There is a lack of systematic research on the static mechanical properties of products fabricated via metal material extrusion (MME) additive manufacturing. Three types of 17-4PH stainless steel powder/polymer composite filament were firstly studied. Then, the formability of the filament was verified by forming green compact specimens using ordinary material extrusion manufacturing equipment through the preparation work for static mechanical properties. The tensile, compressive and flexural properties were tested to analyze their static mechanical properties and explore the influence of different metal powder filling content. The results show that the self-made composite filament can produce green compact products of good quality. When the filling content of 17-4PH stainless steel powder increases from 40% to 50%, the tensile strength of the specimens is decreased by about 7.8%, compressive strength is decreased by 39.2% and flexural strength is reduced by about 30%.

Key words: metal material extrusion, 17-4PH stainless steel powder, polymer composite filament, static mechanical property

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