研究目的
To develop a technology for robotic laser welding of spatial welded joints of thin-walled structural elements of aircraft components made of heat-resistant steels.
研究成果
The study successfully developed a technology for robotic laser welding of thin-walled products from heat-resistant alloys, demonstrating improved weld quality and resistance to hot cracking. The optimal method was found to be laser welding with an additive, which provided uniform hardening and minimized stresses in the weld zone.
研究不足
High-tech and expensive equipment required, need for highly qualified personnel, high requirements for materials and assembly quality of the joint, and the necessity for precise control of welding parameters.
1：Experimental Design and Method Selection:
The study involved designing and testing a robotic laser welding setup for thin-walled products from heat-resistant alloys. The methodology included the use of a fiber-optic laser and robotic manipulator for welding operations.
2：Sample Selection and Data Sources:
Samples were made from the KhN50VMKTYUR-ID alloy, a heat-resistant steel used in aircraft components.
3：List of Experimental Equipment and Materials:
Equipment included a robotic laser cladding complex, an industrial electric fiber laser IRE-Pole with a power of 2 kW, and devices for wire feed and gas protection.
4：Experimental Procedures and Operational Workflow:
The process involved adjusting the focal length of the optical laser head, twist angle, and departure of the feeding device. Parameters varied included laser power, wire feed speed, workpiece movement speed, and shielding gas supply.
5：Data Analysis Methods:
Optical and scanning electron microscopy, X-ray microanalysis, ultrasonic testing, and mechanical tests were used to analyze the welded joints.
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