连续/脉冲激光再制造FeCrNiCu合金成形层温度场研究

采用非接触式红外高温测试仪对连续/脉冲激光成形两种模式下激光再制造FeCrNiCu合金成形层温度场进行分析，获取了熔池及热影响区温度场分布的一般规律，验证了脉冲激光工艺在控制热输入和成形形变以及降低熔池及热影响区温度方面的工艺优越性。结果表明：脉冲激光成形热影响区峰值温度为730.4~810.5℃，熔池峰值温度为998.7~1383.4℃，明显低于相同工艺下连续输出模式；脉冲激光成形层具有更快的升温及降温速率，利于形成细晶组织和获得良好的力学性能；实际成形实验也进一步验证脉冲激光工艺具有更小的热影响区范围。...

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Bibliographic Details
Published in材料工程 Vol. 45; no. 5; pp. 1 - 6
Main Author 任维彬 董世运 徐滨士 任君华 郑显柱 童继凤
Format Journal Article
LanguageChinese
Published 装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072%东北林业大学园林学院,哈尔滨,150040%装甲兵工程学院科研部,北京,100072 2017
Subjects
FeCrNiCu合金
温度场
激光再制造
脉冲激光
FeCrNiCu合金
温度场
laser remanufacture
脉冲激光
激光再制造
FeCrNiCu alloy
pulsed laser
temperature field
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2015.001131

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Summary:采用非接触式红外高温测试仪对连续/脉冲激光成形两种模式下激光再制造FeCrNiCu合金成形层温度场进行分析，获取了熔池及热影响区温度场分布的一般规律，验证了脉冲激光工艺在控制热输入和成形形变以及降低熔池及热影响区温度方面的工艺优越性。结果表明：脉冲激光成形热影响区峰值温度为730.4~810.5℃，熔池峰值温度为998.7~1383.4℃，明显低于相同工艺下连续输出模式；脉冲激光成形层具有更快的升温及降温速率，利于形成细晶组织和获得良好的力学性能；实际成形实验也进一步验证脉冲激光工艺具有更小的热影响区范围。
Bibliography:11-1800/TB
FeCrNiCu alloy temperature field laser remanufacture pulsed laser
REN Wei-bin1 ,DONG Shi-yun1 ,XU Bin-shi1 ,REN Jun-hua2,ZHENG Xian-zhu3,TONG Ji-feng3 （1 National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering,Beijing 100072 , China; College of Landscape,Northeast Forestry University, Harbin 150040 , China; 3 Department of Scientific Research,Academy of Armored Forces Engineering,Beijing 100072 , China）
The temperature field of FeCrNiCu alloy forming layers of continuous wave（CW） and pulsed laser remanufacture was analyzed using the non-contact infrared thermometer.The general rule of temperature field distribution of molten pool and heat-affected zone of the two modes was obtained. The pulsed laser process superiority in heat input, forming deformation control and reducing the temperature in molten pool and heat-affected zone was vilidated. The results show that during pulsed laser forming the peak temperature in the heat-affected zone is 730.4-810.5℃,the peak temperature i
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2015.001131