本文選題：熱成形 + MnB鋼　； 參考：《中南大學(xué)學(xué)報(自然科學(xué)版)》2015年04期

【摘要】：根據(jù)高強(qiáng)度鋼熱成形特點(diǎn),通過圓臺模具實(shí)驗(yàn),分別利用熱平衡法、Beck非線性估算法以及基于優(yōu)化的有限元仿真法(FEM優(yōu)化法)求解熱成形用22MnB5鋼在模具淬火下的實(shí)時界面換熱系數(shù)(IHTC),并對3種求解方法的結(jié)果和適用性進(jìn)行比較和仿真驗(yàn)證。研究結(jié)果表明:Beck非線性估算法、熱平衡法與FEM優(yōu)化法3種方法求解IHTC的平均誤差率分別為3.7%,7.5%和10.3%左右,Beck非線性估算法最準(zhǔn)確;同時,得出馬氏體相變的發(fā)生會對樣件與模具間的IHTC有正的增益效果,壓強(qiáng)與IHTC間存在著近似冪函數(shù)關(guān)系。
[Abstract]:According to the characteristics of hot forming of high strength steel, the experiment of round table die is carried out. The heat balance method and the finite element simulation method based on optimization are used to solve the real time interface heat transfer coefficient of 22MnB5 steel under die quenching. The performance is compared and verified by simulation. The results show that the average error rates of the three methods for solving IHTC are 3.775% and 10.3% respectively, and the average error rates of the three methods are 3.775% and 10.3%, respectively. It is concluded that the martensitic transformation will have a positive gain effect on the IHTC between the sample and the die, and there is an approximate power function relationship between the pressure and the IHTC.
【作者單位】： 大連理工大學(xué)汽車工程學(xué)院工業(yè)裝備結(jié)構(gòu)分析重點(diǎn)實(shí)驗(yàn)室;鋼鐵研究總院特殊鋼研究所;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(10932003,51101036) 遼寧省自然科學(xué)基金和教育部留學(xué)回國人員科研啟動基金聯(lián)合資助項(xiàng)目(優(yōu)秀人才培育2014028001)~~
【分類號】：TG142.1;TK124

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 趙蘭萍,徐烈,李兆慈,孫恒;固體界面間接觸導(dǎo)熱的機(jī)理和應(yīng)用研究[J];低溫工程;2000年04期

2 郭志鵬;熊守美;f蓄，

本文編號：2039106