3D-printed Train Station: The West Japan Railway Company unveiled a 3D-printed train station in Arida city, claiming it as a world first.
o Aerospace: HAL & Wipro 3D, printed air blower component for TEJAS aircraft using Direct Metal Laser Sintering (DMLS) → 50% weight reduction.
o GE: Manufactured 3D-printed jet engine fuel nozzle in India → improved durability and thermal efficiency.
o Automotive: Mahindra, produces 200+ 3D-printed polymer parts annually for prototypes → faster design verification.
o Construction: India’s first 3D-printed house: Built in 2 weeks by Tvasta using concrete extrusion technique.
o Healthcare: Yaantra, the 3D-printed skull implant helped surgeons visualise tumour shape accurately.
ü Ossio: Developed orthopaedic implants from Ossioglass → matches bone strength and hardness.
o Consumer Goods: Dochub & Carbon Heel, use 3D printing for customised, flexible footwear.
o Public Infrastructure: India’s first 3D-printed post office, constructed in 45 days by L&T and IIT Madras → shows rapid construction capability.
o Biomimicry: Designs inspired by natural structures (e.g. spider webs, lotus leaves).
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The UPSC Civil Services Exam has three parts:
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