Warm compaction process of P/M Steels by orthogonal testing method

被引:0
作者
Tuming Ye
Jianhong Yi
Yuandong Peng
Qinglin Xia
Hongzhong Wang
机构
[1] Central South University,State Key Laboratory for Powder Metallurgy
[2] Wuhan Iron and Steel Corporation,No.1 Steelmaking Plant
来源
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2008年 / 23卷
关键词
warm compaction; orthogonal test method; die wall lubrication; particle rearrangement; plastic deformation;
D O I
暂无
中图分类号
学科分类号
摘要
In order to achieve higher density of P/M steels using the die wall lubrication compacting method or powder lubricant in warm compaction process, the influence of different process parameters on the green density of warm compacted samples was studied. According to the orthogonal test method, the authors systematically study the influence of the different compaction pressure, condition of lubrication and compaction temperature on the green density of the sample in the warm compaction process, and put forward the optimal process parameter of warm compaction experiment. It is found that, a high compaction pressure (≥700 MPa), die wall lubrication combined with a small amount of internal lubricants, and fitting compaction temperature by different condition of lubrication, are the optimal parameters in warm compaction process.
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页码:105 / 108
页数:3
相关论文
共 16 条
[1]  
Lemieux P.(2002)Combining Electrostatic Die Wall Lubrication and Warm Compaction to Enhance Green and Sintered Properties of P/M Components[C] Proceedings of 2002 World Congress on Powder Metallurgy & Particulate Materials 3 34-46
[2]  
Thomas Y.(2002)High Density Powder Compaction Using Die Wall Lubrication[C] Proceedings of 2002 World Congress on Powder Metallurgy & Particulate Materials 3 47-54
[3]  
Mongenon P. E.(1995)Replacing Internal with External Lubricants[J] Metal Powder Report 50 22-180
[4]  
Kondoh M.(1999)Warm Compaction of Metal Powders: Why It Works, Why It Requires a Sophisticated Engineering Approach[J] Powder Metallurgy 42 171-1 477
[5]  
Okajima H.(2001)Effects of Lubrication and Aspect Ratio on the Consolidation of Metal Matrix Composites under Cyclic Pressure[J] Acta Materialia 49 1 471-13
[6]  
Capus J. M.(2001)A New Approach to Die Wall Lubrication for P/M Applications[C] Advances in Powder Metallurgy & Particulate Materials 3 1-344
[7]  
Bocchini G. F.(2004)Effect of the Admixed Lubricant Content on Die Wall Lubrication in Warm Compaction[J] Powder Metallurgy Technology 22 341-undefined
[8]  
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[9]  
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[10]  
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