本文選題：激光熔覆 + 鎳基涂層　； 參考：《焊接學(xué)報(bào)》2015年05期

【摘要】：文中采用SYSWELD軟件分別對(duì)激光單道和搭接熔覆過程進(jìn)行模擬分析.結(jié)果表明,激光熔覆處理時(shí)經(jīng)歷了快速加熱、快速冷卻的過程,具有較高的過熱度,單道處理時(shí)熔覆層表面中心點(diǎn)峰值溫度最高,可達(dá)2 589℃;隨著遠(yuǎn)離熔池中心,各點(diǎn)峰值溫度逐漸降低.激光單道處理后,熔覆層內(nèi)受拉應(yīng)力,最大值出現(xiàn)熔覆層與基體交界處,熱影響區(qū)受壓應(yīng)力.搭接處理后第一道熔覆層仍受拉應(yīng)力,但拉應(yīng)力值明顯降低,最大值在熱影響區(qū).由于第一道熔覆的預(yù)熱作用,第二道各點(diǎn)峰值溫度均高于單道處理,應(yīng)力最大值出現(xiàn)在靠近熔覆層底部位置,而熱影響區(qū)受壓應(yīng)力.
[Abstract]:In this paper, the laser single channel and lap cladding processes are simulated and analyzed by SYSWELD software. The results showed that the laser cladding process experienced the process of rapid heating and rapid cooling, and had a higher superheat degree. The peak temperature of the surface center point of the cladding layer was the highest, up to 2 589 鈩，

本文編號(hào)：1779280