| DESIGN OF FORGING METHODS OF HEALING DEFECTS IN INGOTS EFFECTIVELY | |
| Li Dianzhong1; Ma Xuan1,2,3; Xu Bin1,4; Sun Mingyue1,4 | |
| 通讯作者 | Xu Bin(bxu@imr.ac.cn) |
| 2016-10-01 | |
| 发表期刊 | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| 卷号 | 52期号:10页码:1199-1206 |
| 摘要 | Large forgings are the fundamental parts of many kinds of key equipment, and large ingots are the basis of large forgings. There are severe metallurgical defects in large ingots, such as porosities, shrinkage cavities and gas cavities. The continuity of material is damaged by the defects, which must be eliminated during forging process. Using FEM simulation, it is found that void shape is the most important parameter affecting void closing during hot forging. Height-diameter ratio of the void is defined to describe the effect of void shape. The simulation results show that the larger height-diameter ratio of the void, the harder it is for the void to close. Based on these results, wide anvil radial forging (WRF) method is proposed. WRF method can concentrate the strain on the center of the ingot; make the height-diameter ratio of the voids smallest and heal shrinkage cavities effectively. Another one direction heavy forging method is proposed to be used on smaller forging machines. Using this method, the billet is forged along the same direction for two passes. This method can heal defects effectively with small pressure. Based on interface healing rules, temperature dwelling forging method for forging tube plates are proposed. A tube plate with defects is repaired using this method. These forging methods have been used on industrial experiments, and have been proved to be able to heal the defects in the billets and increase qualified rate of the forgings. |
| 关键词 | void closure wide anvil radial forging one direction heavy forging temperature dwelling forging |
| 资助者 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Liaoning BaiQianWan Talents Program |
| DOI | 10.11900/0412.1961.2016.00393 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[U1508215] ; National Key Research and Development Program of China[2016YFB0300401] ; Liaoning BaiQianWan Talents Program[[2015] 12] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000390080900006 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/123395 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Xu Bin |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Shenyang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China 3.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116085, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Dianzhong,Ma Xuan,Xu Bin,et al. DESIGN OF FORGING METHODS OF HEALING DEFECTS IN INGOTS EFFECTIVELY[J]. ACTA METALLURGICA SINICA,2016,52(10):1199-1206. |
| APA | Li Dianzhong,Ma Xuan,Xu Bin,&Sun Mingyue.(2016).DESIGN OF FORGING METHODS OF HEALING DEFECTS IN INGOTS EFFECTIVELY.ACTA METALLURGICA SINICA,52(10),1199-1206. |
| MLA | Li Dianzhong,et al."DESIGN OF FORGING METHODS OF HEALING DEFECTS IN INGOTS EFFECTIVELY".ACTA METALLURGICA SINICA 52.10(2016):1199-1206. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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