Welding method for high-temperature titanium alloy thin-wall casting electron beam
A technology of high-temperature titanium alloy and electron beam welding, which is applied in the direction of electron beam welding equipment, welding equipment, welding/welding/cutting items, etc. The effects of grain growth, avoiding cracking, and slowing down the heat dissipation rate and heat transfer rate
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[0037] The invention relates to an electron beam welding method for high-temperature titanium alloy thin-walled castings.
[0038] Concrete implementation steps of the present invention are as follows:
[0039] Step 1, sample surface treatment: the sample is a high-temperature titanium alloy thin-walled casting, specifically cast Ti60 alloy or cast Ti55 alloy. The thickness of the casting sample is 1-10 mm, the length of the weld seam is greater than 100 mm, and the width is 100 mm, using butt welding. Grind and clean the part of the sample to be welded to remove oil and impurities on the surface, and at the same time make the seam parts have no gaps after butt joint, so as to reduce the porosity in the weld.
[0040] Step 2, clamping the thermocouple and the sample: place the thermocouple on the side of the worktable, parallel to the sample, and fix it; in order to alleviate the obvious deformation of the sample due to local heating during welding, conventional methods shoul...
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