激光深熔焊等离子体波动特征光电信号分析

邱文聪; 杨立军; 刘桐; 赵德金

doi:doi:10.3788/CJL201845.0402001

中国激光, 2018, 45 (4): 0402001, 网络出版: 2018-04-13

激光深熔焊等离子体波动特征光电信号分析下载： 842次

Optic-Electrical Signal Analysis of Plasma Fluctuation Characteristics in Laser Deep Penetration Welding

邱文聪 ¹杨立军 ^1,2,*刘桐 ¹赵德金 ¹

作者单位

¹ 天津大学材料科学与工程学院, 天津 300350

² 天津大学天津市现代连接技术重点实验室, 天津 300350

图 & 表

图 1. 电信号检测和高速摄像系统示意图

Fig. 1. Schematic of electrical signal acquisition and high-speed CCD camera system

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图 2. 焊接功率为1250 W,焊接速度为16 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 2. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 16 mm·s-1 and welding power of 1250 W

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图 3. 焊接功率为1250 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 3. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1250 W

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图 4. 焊接功率为1250 W,焊接速度为8 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 4. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 8 mm·s-1 and welding power of 1250 W

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图 5. 焊接功率为1150 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 5. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1150 W

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图 6. 焊接功率为1350 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 6. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1350 W

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图 7. 焊接功率为1250 W,焊接速度为16 mm·s-1时的电信号PSD图。(a)第1段;(b)第2段;(c)第3段;(d)第4段;(e)第5段;(f)第6段;(g)第7段;(h)第8段;(i)第9段

Fig. 7. PSD plot of electrical signal at welding speed of 16 mm·s-1 and welding power of 1250 W. (a) First segment; (b) second segment; (c) third segment; (d) fourth segment; (e) fifth segment; (f) sixth segment; (g) seventh segment; (h) eighth segment; (i) ninth segment

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图 8. 不同条件下电信号的波动频率。(a)不同焊接速度;(b)不同焊接功率

Fig. 8. Fluctuation frequency of electrical signal under different conditions. (a) Different welding speeds; (b) different welding powers

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表 1焊接参数

Table1. Welding parameters

PowerP /W	Weldingspeed v /(mm·s^-1)	Shieldinggas flowq /(L·min^-1)	Weldwidthb /mm	Welddepthh /mm
1250	16	30	0.94	1.50
1250	12	30	1.65	2.43
1250	8	30	1.98	3.00
1150	12	30	0.87	0.99
1350	12	30	2.10	3.00

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表 2不同焊接参数下F与f的差别及对应焊缝界面

Table2. Difference between F and f at different welding parameters and their corresponding weld interfaces

Power P/W	Welding speeding v /(mm·s^-1)	F /Hz	f /Hz	e /%
1250	16	488.30	511.71	4.79
1250	12	463.90	475.23	2.44
1250	8	390.60	422.68	8.21
1150	12	463.90	488.60	5.32
1350	12	415.00	431.65	4.01

查看原文

邱文聪, 杨立军, 刘桐, 赵德金. 激光深熔焊等离子体波动特征光电信号分析[J]. 中国激光, 2018, 45(4): 0402001. Qiu Wencong, Yang Lijun, Liu Tong, Zhao Dejin. Optic-Electrical Signal Analysis of Plasma Fluctuation Characteristics in Laser Deep Penetration Welding[J]. Chinese Journal of Lasers, 2018, 45(4): 0402001.

激光深熔焊等离子体波动特征光电信号分析下载： 842次

图 1. 电信号检测和高速摄像系统示意图

Fig. 1. Schematic of electrical signal acquisition and high-speed CCD camera system

图 2. 焊接功率为1250 W,焊接速度为16 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 2. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 16 mm·s-1 and welding power of 1250 W

图 3. 焊接功率为1250 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 3. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1250 W

图 4. 焊接功率为1250 W,焊接速度为8 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 4. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 8 mm·s-1 and welding power of 1250 W

图 5. 焊接功率为1150 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 5. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1150 W

图 6. 焊接功率为1350 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 6. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1350 W

图 7. 焊接功率为1250 W,焊接速度为16 mm·s-1时的电信号PSD图。(a)第1段;(b)第2段;(c)第3段;(d)第4段;(e)第5段;(f)第6段;(g)第7段;(h)第8段;(i)第9段

Fig. 7. PSD plot of electrical signal at welding speed of 16 mm·s-1 and welding power of 1250 W. (a) First segment; (b) second segment; (c) third segment; (d) fourth segment; (e) fifth segment; (f) sixth segment; (g) seventh segment; (h) eighth segment; (i) ninth segment

图 8. 不同条件下电信号的波动频率。(a)不同焊接速度;(b)不同焊接功率

Fig. 8. Fluctuation frequency of electrical signal under different conditions. (a) Different welding speeds; (b) different welding powers

表 1焊接参数

Table1. Welding parameters

表 2不同焊接参数下F与f的差别及对应焊缝界面

Table2. Difference between F and f at different welding parameters and their corresponding weld interfaces

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图 1. 电信号检测和高速摄像系统示意图

Fig. 1. Schematic of electrical signal acquisition and high-speed CCD camera system

图 2. 焊接功率为1250 W,焊接速度为16 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 2. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 16 mm·s-1 and welding power of 1250 W

图 3. 焊接功率为1250 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 3. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1250 W

图 4. 焊接功率为1250 W,焊接速度为8 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 4. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 8 mm·s-1 and welding power of 1250 W

图 5. 焊接功率为1150 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 5. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1150 W

图 6. 焊接功率为1350 W,焊接速度为12 mm·s-1时,典型深熔焊电信号与等离子体高速摄像图片对比

Fig. 6. Comparison between electrical signal and high-speed CCD camera images of plasma plume during deep penetration welding at welding speed of 12 mm·s-1 and welding power of 1350 W

图 7. 焊接功率为1250 W,焊接速度为16 mm·s-1时的电信号PSD图。(a)第1段;(b)第2段;(c)第3段;(d)第4段;(e)第5段;(f)第6段;(g)第7段;(h)第8段;(i)第9段

Fig. 7. PSD plot of electrical signal at welding speed of 16 mm·s-1 and welding power of 1250 W. (a) First segment; (b) second segment; (c) third segment; (d) fourth segment; (e) fifth segment; (f) sixth segment; (g) seventh segment; (h) eighth segment; (i) ninth segment

图 8. 不同条件下电信号的波动频率。(a)不同焊接速度;(b)不同焊接功率

Fig. 8. Fluctuation frequency of electrical signal under different conditions. (a) Different welding speeds; (b) different welding powers

表 1焊接参数

Table1. Welding parameters

表 2不同焊接参数下F与f的差别及对应焊缝界面

Table2. Difference between F and f at different welding parameters and their corresponding weld interfaces

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