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基于等離子弧焊的Ti-6Al-4V快速成形工藝參數(shù)研究
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國家自然科學(xué)基金（50775193）；教育部科學(xué)技術(shù)研究重點項目（211200）；新疆高校青年教師科研培育基金（XJEDU2009S14）；新疆大學(xué)博士科研啟動基金（BS090151）


Study on the Processing Parameters of Plasma Arc Welding-Based Rapid Prototyping for Ti-6Al-4V Alloy Parts
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    摘要:

    研究了基于等離子弧焊的鈦合金零件直接金屬快速成形方法。采用正交試驗和成形溫度對比測試的方法，研究了脈沖電流強(qiáng)度、占空比等6個重要工藝參數(shù)對成形軌跡截面寬高比的影響規(guī)律。結(jié)果表明：脈沖電流強(qiáng)度、占空比、送絲速度、工作臺速度對寬高比的影響非常顯著，等離子氣流量對寬高比的影響顯著，而脈沖頻率的影響不顯著。采用獲得的優(yōu)化參數(shù)制作了Ti-6Al-4V零件，并進(jìn)行了抗拉強(qiáng)度和致密度測試，結(jié)果表明其抗拉強(qiáng)度和致密度與激光熔覆成形件的性能相當(dāng)。

    Abstract:

    A direct metal rapid prototyping process based on the plasma arc welding was presented. The effects of 6 important processing parameters, such as pulse current, wire-feeding speed etc, on the ratio of width to height of the deposited track cross-section (λ) was investigated by Taguchi method and temperature contrast experiments. The results show that pulse current, duty circle, wire-feeding speed and scanning speed exert significant influences on λ. The plasma gas flow-rate has a great effect on λ, while pulse frequency has no obvious effects on λ. The tensile strength and density of Ti-6Al-4V parts fabricated with the optimized parameters was tested. The results show their test data is similar to that of the parts fabricated with laser deposited process.

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烏日開西·艾依提,趙萬華,買買提明·艾尼,孫文磊.基于等離子弧焊的Ti-6Al-4V快速成形工藝參數(shù)研究[J].稀有金屬材料與工程,2012,41(1):134~138.[Wurikaixi Aiyiti, Zhao Wanhua, Mamtimin Geni, Sun Wenlei. Study on the Processing Parameters of Plasma Arc Welding-Based Rapid Prototyping for Ti-6Al-4V Alloy Parts[J]. Rare Metal Materials and Engineering,2012,41(1):134~138.]
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  • 收稿日期:2011-01-10
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