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激光快速成形TA15殘余應力影響因素的研究
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Influencing Factors of Residual Stress of Ti-6.5Al-1Mo-1V-2Zr Alloy by
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    摘要:

    采用小孔法對激光快速成形TA15鈦合金樣件進行殘余應力影響因素的研究。結(jié)果表明：激光功率、掃描速度、送粉速度、掃描方式等工藝參數(shù)對殘余應力均有顯著影響。激光功率越大，殘余應力越大；隨著掃描速度的增大，殘余應力則不斷減??；隨著送粉速度的增大，殘余應力有增加的趨勢；3種掃描方式中的交錯掃描是殘余應力最小的成形掃描方式。最后，對成形樣件不同位置的殘余應力進行了測定分析，得出成形件中間位置是殘余應力峰值點的結(jié)論

    Abstract:

    The influencing factors of residual stress of Ti-6.5Al-1Mo-1V-2Zr alloys by laser rapid forming progress were investigated by the hole-drilling method. The results show that laser power, laser scanning speed, powder feed rate and the scanning method significantly affect the residual stress. The greater the laser power, the greater the residual stress. With the increase of scanning speed, residual stress is constantly decreased. With the increase of powder feed rate, there is an increasing trend of residual stress. Among the three scanning methods, the staggered scanning method is preference. Finally, the residual stress at different positions of the forming sample was analyzed, and it is concluded that the middle position is the residual stress peak

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來佑彬,劉偉軍,孔 源,王福雨,趙宇輝.激光快速成形TA15殘余應力影響因素的研究[J].稀有金屬材料與工程,2013,42(7):1526~1530.[Lai Youbin, Liu Weijun, Kong Yuan, Wang Fuyu, Zhao Yuhui. Influencing Factors of Residual Stress of Ti-6.5Al-1Mo-1V-2Zr Alloy by[J]. Rare Metal Materials and Engineering,2013,42(7):1526~1530.]
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  • 收稿日期:2012-07-05
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