| 冷镦钢产品顶锻开裂的机理分析及应用 |
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| 引用本文： | 李慧峰. 冷镦钢产品顶锻开裂的机理分析及应用[J]. 锻压技术, 2006, 31(2): 1-4 |
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| 作者姓名： | 李慧峰 |
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| 作者单位： | 太原钢铁(集团)有限公司,山西,太原,030003 |
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| 摘 要： | 冷镦钢是用于制造螺栓、螺母、铆钉、插销等紧固件的一种重要材料,冷镦性能是材料性能的重要指标.冷镦钢在冷顶锻检验时,顶锻开裂的现象可以归纳为周面脆性开裂、塑性斜向开裂、纵向断续微裂、纵向通长开裂4类主要开裂现象.本文根据断裂力学理论,结合顶锻试样开裂的不同表现,对试样不同开裂情况进行了理论研究,分析了各种开裂现象的产生机理,并据此制定了冷镦钢产品的生产过程中提高冷顶锻性能的相关措施.
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| 关 键 词： | 高速线材 冷镦 开裂 机理 质量控制 |
| 文章编号： | 1000-3940（2006）02-0001-04 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005-05-09 |
Mechanical analysis of cold heading steel product cracks and its application in production |
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| LI Hui-feng. Mechanical analysis of cold heading steel product cracks and its application in production[J]. Forging & Stamping Technology, 2006, 31(2): 1-4 |
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| Authors: | LI Hui-feng |
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| Abstract: | Cold heading steel is a kind of functional material used to manufacture constructional parts such as, bolts, nuts, screws, or pins etc. , to which cold heading performance is an essential character. While being cold-headed, wire specimens crack with different performances, which can be concluded into four categories as surface cracks, slant cracks, longitudinal continuous cracks and longitudinal intermittent cracks. Formative mechanisms and originations of different cracks categories are analyzed accordingly in favor of quality control in production process. |
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| Keywords: | cold-heading crack mechanism quality control |
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