选区激光熔化马氏体时效钢(18Ni300)工艺参数研究
Study of process parameters of maraging steel(18Ni300)manufactured by selective laser melting
查看参考文献19篇
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文摘
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采用单因素条件变量分析方法,研究选区激光熔化(SLM)增材制造过程中激光功率和扫描速度对马氏体时效钢成形件表面质量、相对致密度和硬度的影响规律.结果表明,随着激光扫描速度增大,试件表面熔道球化效应增强,内部缺陷增多,试件相对致密度和硬度逐渐降低;随着激光功率增大,试件表面熔道重熔区域变大,但试件的相对致密度和硬度无明显变化.本研究可为马氏体时效钢选区激光熔化工艺参数的合理选择提供参考. |
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其他语种文摘
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The single variable analysis method is adopted to evaluate the effects of laser power and scanning speed on the surface topography,relative density and hardness of maraging steel parts in selective laser melting(SLM)additive manufacturing process.The result shows that with an increase in the laser scanning speed,balling effect increases and both relative density and hardness of the part are decreased because of the increment of internal defects,and with an increase in the laser power, remelt zone of track on workpiece surface is increased,but neither relative density nor hardness are affected.This study can provide reference for determining laser process parameters of SLMed maraging steels. |
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来源
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大连理工大学学报
,2018,58(5):471-478 【核心库】
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DOI
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10.7511/dllgxb201805005
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关键词
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选区激光熔化(SLM)
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增材制造
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马氏体时效钢
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球化效应
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工艺参数
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地址
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1.
大连理工大学, 精密与特种加工教育部重点实验室, 辽宁, 大连, 116024
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南方科技大学机械与能源工程系, 广东, 深圳, 518055
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-8608 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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中央高校基本科研业务费专项资金
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文献收藏号
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CSCD:6339682
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