【摘要】：針對鍛造過程中鋼錠內(nèi)部裂紋缺陷的愈合情況進行研究,設計了裂紋愈合的實驗室模擬實驗與工業(yè)級模擬實驗.通過在Gleeble熱壓縮試樣中預制裂紋缺陷,研究了變形溫度和變形量對內(nèi)部裂紋愈合的影響,發(fā)現(xiàn)變形溫度越高,變形量越大,內(nèi)裂紋的愈合效果越好.為了驗證Gleeble實驗結(jié)果的準確性,保證其結(jié)果在實際鍛造生產(chǎn)中的適用性,設計了鍛件內(nèi)部裂紋愈合的工業(yè)級模擬實驗.結(jié)果表明在1200℃,變形量為40%時,可以有效焊合鍛件內(nèi)部裂紋.
[Abstract]:Based on the research of internal crack healing of ingot during forging process, the laboratory and industrial grade simulation experiments of crack healing were designed. The effects of deformation temperature and deformation amount on internal crack healing were studied by prefabricated crack defects in Gleeble hot compression specimen. It was found that the higher the deformation temperature, the larger the deformation amount, the better the healing effect of internal crack. In order to verify the accuracy of Gleeble experimental results and ensure the applicability of the results in actual forging production, an industrial grade simulation experiment on internal crack healing of forgings was designed. The results show that the internal crack of the forging can be welded effectively at 1200 鈩，

本文編號：2326133