作者：梁坤1，許丁1，辛選榮1,2，賀成松1（1.洛陽秦漢精工股份有限公司，河南洛陽471611；2.河南科技大學，河南洛陽471023）
摘要：針對A286高溫合金，利用Gleeble 1500D試驗機對其在室溫下的應力應變關系進行研究，將獲得的數據導入DeForm-3D數值模擬軟件中，對該類型材料的擠壓性能進行分析和總結。利用數值模擬軟件對螺母的擠壓成形工藝進行分析，論證擠壓工藝的可行性和關鍵模具零件的受力，并設計高溫合金螺母擠壓成形模。經過實際驗證，采用大變形量的擠壓后，再經過時效處理能提升高溫合金自鎖螺母的軸向載荷。
關鍵詞：高溫合金；擠壓；自鎖螺母；軸向載荷；固溶處理
中圖分類號：TG376.3 文獻標識碼：B 文章編號：1001-2168（2020）08-0043-05
DOI：10.16787/j.cnki.1001-2168.dmi.2020.08.010
Study on extrusion forming technology for high temperature alloy nut and the die design
LIANG Kun1, XU Ding1, XIN Xuan-rong1,2, HE Cheng-song1（1.Luoyang Qinhan Precision Industrials Co., Ltd., Luoyang, Henan 471611, China; 2.Henan University of Science and Technology, Luoyang, Henan 471023, China）
Abstract: Aiming at the high temperature alloy A286, the stress-strain relationship at 20 ℃ was studied by using Gleeble 1500D test machine. The obtained data were imported into deForm-3D numerical simulation software to analyze and summarize the extrusion performance of the material. The extrusion forming process of nuts was simulated by numerical simulation software. Its feasibility and the stress analysis of key die parts were demonstrated. The cold extrusion forming die for high temperature alloy nuts was designed. It was verified by practices that the axial load of the high temperature alloy self-locking nut could be increased after the cold extrusion with large deformation and the aging treatment.
Key words: high temperature alloy; extrusion; self-locking nut; axial load; solution treatment