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Why are titanium alloy products are expensive?
Sponge titanium must be recast in an electric furnace to become a usable titanium ingot. Titanium is very active at high temperatures and difficult to process. Pure titanium is very soft and generally not suitable for use as a titanium product, so it is necessary to re-add other elements.
TI-6AL-4V, which is commonly used in the aviation industry, incorporates many other elements to improve metal properties. Titanium is difficult to machine. This is not really hard, but it is very sticky. We use a boring tool and a titanium TI-6AL-4V shank. The trowel's grain is quickly filled with slag. It is said that because the speed is low, the titanium can not be cut at all, and if the speed is too high, the titanium will be oxidized, and the ordinary machining center cannot process the titanium alloy at all.
Titanium is harder to use for glasses. The frame of the frame is very thin and requires a lot of fine processing, but it is definitely a big challenge for titanium, a particularly difficult material to process. In addition, titanium alloy frames are also related to titanium alloy welding technology, which is more difficult. How difficult is the titanium alloy processing technology? Let's just say that people who design airplanes all over the world, as long as they can use aluminum alloys through structural optimization, resolutely do not use titanium alloys, because the processing difficulty of titanium alloys is really too big.