增材制造TiAl合金的研究进展
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陈玉勇, 时国浩, 杜之明, 张宇, 常帅
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Research Progress on Additive Manufacturing TiAl Alloy
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CHEN Yuyong, SHI Guohao, DU Zhiming, ZHANG Yu, CHANG Shuai
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表1 增材制造技术的对比[8~11]
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Table 1 Comparisons of additive manufacturing techniques[8-11]
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Method | Energy source | Power W | Beam size mm | Layer thickness μm | Powder preheating oC | Residual stress | Build speed cm3·h-1 | Dimensional accuracy mm | Ra μm | Max. build size mm | Machines company |
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| LMD | Laser | 100-10000 | 2-4 | 500-1000 | Room temperature | High | High, ~1000 | 0.5-1.0 | 20-50 (Coarse) | 4000 × 2000 × 1000 | Optomec (USA) | SLM | Laser | 50-500 | 0.1-0.5 | 50-100 | ≤ 200 | High | Low, ~150 | 0.04-0.2 | 9-12 (Excellent) | 800 × 400 × 500 | Concept Laser and SLM Solutions (Germany) | | EBM | Electronbeam | 3000 | 0.2-1.0 | 50-200 | 600-1150 | Minimal | Low, ~150 | ± 0.2 | 25-35 (Moderate) | ϕ350 × 380 | Arcam (Sweden) |
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