Facts for Prelims (FFP)
Source: LM
Context: ISRO achieved a milestone by conducting a successful hot test of a liquid rocket engine created using Additive Manufacturing (AM) technology, commonly known as 3D printing.
The engine tested belongs to the Reaction Control System (RCS) of the upper stage (PS1) of the Polar Satellite Launch Vehicle (PSLV). The same engine is used in the Reaction Control System (RCS) of the first stage (PS1) of PSLV. The test took place at ISRO Propulsion Complex, Mahendragiri, Tamil Nadu. This advancement saves 97% of raw materials and reduces production time by 60%. The new manufacturing process requires only about 13 kg of metal powder compared to 565 kg of forgings and sheets used in conventional manufacturing.
What is a Hot test?
A hot test is a procedure conducted to evaluate the performance and functionality of a system or component under operational conditions, typically involving exposure to high temperatures or other extreme conditions.
About 3D printing:
It builds a three-dimensional object layer by layer from a digital model, contrasting with traditional subtractive manufacturing. Materials used in AM include thermoplastics, metals, ceramics, and biomaterials.
MeitY released the “National Strategy for Additive Manufacturing” in 2022, with initiatives such as establishing a 3D printing lab at the National Institute of Electronics & Information Technology, Aurangabad. Additionally, the National Centre for Additive Manufacturing was established in 2023 by MeitY in collaboration with the Government of Telangana.
