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SpaceX has been 3-D printing injectors with a titanium printer for a few years. I wonder how much information is shared.
by afshin 11y ago
SpaceX has been 3-D printing injectors with a titanium printer for a few years. I wonder how much information is shared.
- krasin 11y agoSpaceX also prints its SuperDraco engines ([1]) using Inconel superalloy ([2]) powder, which is even harder to process with a mill than titanium. 1. https://en.wikipedia.org/wiki/SuperDraco#Manufacturing https://en.wikipedia.org/wiki/SuperDraco#Manufacturing 2. https://en.wikipedia.org/wiki/Inconel https://en.wikipedia.org/wiki/Inconel
- burger_moon 11y agoI hadn't heard that iconel was worse to machine than titanium, but machining titanium was a much bigger pain in the ass. You have to be very careful about your metal chips when machining titanium because they can ignite.
- krasin 11y agoAccording to the machinability ratings [1], Inconel 700 is rated at 0.09 (less is harder) and Inconel 702 at 0.11, while most of the Titanium alloys are above 0.15. There's a single Titanium alloy family (MST) in the table that is just as hard to machine as Inconel 700. So, you're technically correct: generally, they are on the same scale. And your argument about ignitability is certainly true. 1. http://www.quakerchem.com/wp-content/uploads/pdf/skill_builders/no10_machinability_ratings.pdf http://www.quakerchem.com/wp-content/uploads/pdf/skill_build...