【摘要】：目的模擬研究噴丸除銹工藝的過程和處理效果,為優(yōu)化工藝參數(shù)提供指引。方法以建筑用低碳鋼及其銹蝕產物為研究對象,利用單元去除技術和周期性胞元方法建立有限元模型,模擬多個丸粒隨機撞擊和氧化層去除的過程,并與文獻中的實驗數(shù)據(jù)進行了對比驗證,從氧化層去除速率、去除后的表面粗糙度和表層殘余應力三個角度分析噴丸除銹工藝的效果。結果提高除銹效果可從增大丸粒入射速度和丸粒直徑來入手,氧化層越厚噴丸除銹處理的時間越長。結論噴丸除銹工藝能有效去除銹蝕層,同時改善表面粗糙度和引入殘余壓應力,具有較廣的應用前景。有限元模擬能為該工藝優(yōu)化提供便捷的研究途徑。
[Abstract]:Objective to simulate and study the process and effect of peening rust removal in order to provide guidance for optimizing technological parameters. Methods A finite element model of low carbon steel and its corrosion products for building was established by means of unit removal technique and periodic cell method. The process of random impact and oxide removal of several pellets was simulated. Compared with the experimental data in the literature, the effect of blast peening on rust removal is analyzed from three aspects: oxidation removal rate, surface roughness and residual stress. Results increasing the incidence velocity and diameter of pellets can be used to improve the rust removal effect. The thicker the oxide layer, the longer the time of peening rust removal. Conclusion shot peening process can effectively remove rust layer, improve surface roughness and introduce residual compressive stress, which has a wide application prospect. [WT5 "HZ] conclusion\? The finite element simulation can provide a convenient research way for the optimization of the process.
【作者單位】： 同濟大學航空航天與力學學院;
【基金】：上海市教委科研創(chuàng)新項目(15zz018) 中央高�；究蒲袠I(yè)務費專項資金(20143401)~~
【分類號】：TG178

【相似文獻】

相關期刊論文 前3條

1 鄒春明，張秀鳳，，梅杰剛;成卷線材噴丸除銹技術的應用[J];金屬制品;1996年02期

2 ;《材料保護》2009年第9期[J];表面工程資訊;2009年04期

3 ;[J];;年期

本文編號：2469631