成形气氛中氧含量对TC4钛合金激光快速成形工艺的影响

1.西北工业大学,陕西,西安,710072

2.西北工业大学,陕西,西安,710072

3.西北有色金属研究院,陕西,西安,710072

4.西北工业大学,陕西,西安,710072

5.西北工业大学,陕西,西安,710072

Influence of Oxygen Content in Controlled Atmosphere on the Processing Characteristics of Laser Rapid Forming of TC4 Titanium Alloy

在惰性保护气氛中对TC4钛合金的激光快速成形进行了实验研究.研究结果表明,成形气氛中的氧含量,对成形工艺包括激光沉积工艺、成形表面质量、粉末利用率、熔覆层是否开裂等具有显著影响.氧含量严格控制在0.02%以下时,获得表面平整光洁、无裂纹等缺陷的TC4薄壁试样,粉末利用率达53%.

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