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摘要:
Laser heat treatment is considered to be one of best-performing manufacturing processes used currently due to its flexibility and its ability to develop parts with complex geometries. In fact, this process is able to produce reliable parts with hard, thin martensite and compressive residual stresses. This paper explores the heat treatment applied to 4340 cylindrical parts heated using a Nd: Yag 3 kW laser source. In this case, the hardness profile is correlated to process parameters such as the laser source power, the beam scanning speed and the revolution speed of the part during heating. Based on preliminary tests stipulating that each parameter is varied alone within a specific range, a systematic design of final tests is performed using Taguchi matrix. The obtained results are analyzed using ANOVA method to extract the effects, the contributions and the interaction between the factors. The results are then exploited to study the sensitivity of the case depth according the variation of the process parameters. The developed model exhibits good potential for converging towards a robust model able to predict the hardness curve and to generalize it for other dimensions of cylindrical parts.
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篇名 Effects of Laser Hardening Process Parameters on Case Depth of 4340 Steel Cylindrical Specimen—A Statistical Analysis
来源期刊 表面工程材料与先进技术期刊(英文) 学科 医学
关键词 LASER Heat Treatment CYLINDRICAL SPECIMEN HARDNESS PROFILE Case DEPTH
年,卷(期) bmgcclyxjjsqkyw_2015,(3) 所属期刊栏目
研究方向 页码范围 124-135
页数 12页 分类号 R73
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研究主题发展历程
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LASER
Heat
Treatment
CYLINDRICAL
SPECIMEN
HARDNESS
PROFILE
Case
DEPTH
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研究去脉
引文网络交叉学科
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期刊影响力
表面工程材料与先进技术期刊(英文)
季刊
2161-4881
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
211
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0
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