Research Of Titanium Alloy T-joint Dual Role Laser Welding Technologyfor Track And Crafts

Skin and T-joint connector skeleton structure composed of a good compatibility with high specific strength, fatigue properties and characteristics of the surrounding structure, an ideal method for large-scale panel design, the dual laser welding manufacturing titanium synchronization integral wall ideal T-joint welding methods. Development and application of titanium overall siding T-joint dual laser welding outfit and synchronization technology to achieve new fighter lightweight, technology-based machine height strength, super maneuverability and stealth performance is excellent, and the country has not addressed the whole panel T-joint laser welding equipment and technology maturity, each aircraft manufacturing company has been using conventional riveting or welding penetration resistance, can not meet the needs of design. Developed countries have a mature laser welding specialized equipment, but to restrict exports to China, against the current international political environment, the urgent need to develop a whole wall titanium dual role of T-joint laser welding equipment.First studied the dual role of titanium T-joint robot laser welding equipment design, analysis of the double-acting general scheme robot laser welding equipment design, part selection and optimization, seam tracking, on-line quality control, safety, welding process Real-time monitoring, data acquisition and analysis and troubleshooting. The table moves to the specified location by the control system, manual welding robot for double track Teach, Teach path according to the program automatically complete the product welding, and seam tracking, monitoring, testing, acquisition and analysis.Secondly, described the robot trajectory planning of the technical route and trajectory planning purposes, the proposed dual role of titanium alloy T-joint robot trajectory planning of laser welding equipment mathematical expression model, the mathematical model of the double effect of laser welding robot trajectory planning the factors involved, the selection of genetic algorithm as the dual role of titanium alloy T-joint robot laser welding equipment mathematical algorithms trajectory planning, trajectory planning to equip this article, compared to the actual extraction of solder joints, get the double role of laser welding robot most excellent track, performed in Rob Cad simulation software to verify the validity and rationality trajectory planning programs.Finally, the effects of weld process parameters to do the experiment analysis, fromthe univariate analysis of the welding speed, laser power, shielding gas nozzle in the form of the structure, the nozzle distance weldment surface height, the amount of defocus the laser beam incident angle and the impact of the laser spot on the stringer offset weld quality using orthogonal experimental method, a comprehensive analysis to obtain the best matching process parameters.