研究目的
Investigating the effect of shielding gas flow on the welding process of laser-arc hybrid welding (LAHW) and metal inert-gas welding (MIG).
研究成果
The process stability of MIG under high gas flow rate is poorer than that of LAHW. The force of gas flow Fg can hinder the droplet transfer, whether MIG or LAHW. But the vaporization-induced recoil force Fv in LAHW helps to reduce this kind of hindrance and keep the process stability. The shielded gas flow mode in the main welding area cannot be changed significantly by increasing the shielding gas flow rate, while high gas flow rate can increase the area of high argon concentration and benefit the spread of molten metal.
研究不足
The influence of arc plasma and laser-induced plasma was not considered in the simulation.
1：Experimental Design and Method Selection
The study used computational fluid dynamics analysis (CFD) and high-speed photography to investigate the influence of shielding gas on the welding process of LAHW and MIG.
2：Sample Selection and Data Sources
The material used was 6 mm thick 6N01 aluminum and the filler metal was ER5356 with the 1.2 mm diameter. The chemical compositions of the base metal and welding wire were provided.
3：List of Experimental Equipment and Materials
The LAHW system was composed of an IPG YLS-4000 fiber laser, a KEMPPI KempArc-450 pulse welding machine and an ABB IRB-2600 industrial robot. A Photron FASTCAM SA4 high-speed camera was used to observe the welding process.
4：Experimental Procedures and Operational Workflow
The welding parameters of LAHW and MIG were given. The CFD analysis for the zone of red circle was carried out. The high-speed camera was used to observe the welding process, and a NI DAQ system was used to acquire the voltage and current of welding process.
5：Data Analysis Methods
The microscopic morphology was observed by a Carl Zeiss Stemi 2000-C stereomicroscope. The CFD analysis was calculated by ANSYS R18.0 software.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
IPG YLS-4000 fiber laser
YLS-4000
IPG
Used as part of the LAHW system for welding.
立即获取同款设备 -
Photron FASTCAM SA4 high-speed camera
FASTCAM SA4
Photron
Used to observe the welding process.
立即获取同款设备
-
Carl Zeiss Stemi 2000-C stereomicroscope
Stemi 2000-C
Carl Zeiss
Used to observe the microscopic morphology.
暂无现货
预约到货通知
-
KEMPPI KempArc-450 pulse welding machine
KempArc-450
KEMPPI
Used as part of the LAHW system for welding.
暂无现货
预约到货通知
-
ABB IRB-2600 industrial robot
IRB-2600
ABB
Used as part of the LAHW system for welding.
暂无现货
预约到货通知
-
ANSYS R18.0 software
R18.0
ANSYS
Used for computational fluid dynamics analysis.
暂无现货
预约到货通知
-
登录查看剩余4件设备及参数对照表
查看全部
