Welding method of titanium alloy framework and covering variable cross-section element
A welding method and titanium alloy technology, applied in welding medium, welding equipment, auxiliary welding equipment, etc., can solve the problems of large welding internal stress, asymmetric welding thermal expansion, uneven thickness of structure, and achieve easy maintenance and repair. Mechanical properties, simple structure effect
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[0027] A welding method for a titanium alloy skeleton and skin with variable cross-section:
[0028] Figure 1 shows the vacuum brazing process of the components. First, the parts after the inspection are pickled and cleaned, and the FTI high-strength foil-shaped solder is pre-installed on the surface of the skeleton to be welded. After the tooling is clamped, put it into the furnace for vacuum brazing. Through appropriate vacuum brazing parameters, such as high-temperature brazing parameters: 870-950°C, heat preservation for 2-60min; diffusion parameters: 700-850°C heat preservation, 30-120min, to make brazing The material melts at a high temperature and is maintained at a temperature lower than the brazing temperature for solid-state diffusion. The diffusion further homogenizes the joint tissue components. After the product is welded, disassemble the tooling and check the component size and welding quality.
[0029] Figure 2 shows the overall cross-sectional schematic view of...
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