Roscosmos has mastered additive technology to create engines for Angara rockets

Additive robot welding at Proton-PM.

The Proton-PM company has mastered the technology of growing medium-sized metal blanks using the arc welding method.

This will make it possible to master a new range of parts and assembly units of the RD-191 liquid propellant rocket engine for Angara launch pads faster and with greater economic efficiency and other serial orders for the manufacture of non-standard equipment, pilot batches and unique products for the sake of strategic industries.

Wire coating technology makes it possible to produce parts with a diameter of up to 1000 mm. During its development, the company introduced robotic welding complexes created on the basis of the development of the Department of Welding Production, Metrology and Materials Technology at Perm National Research Polytechnic University. The new technology uses structural, heat-resistant and rust-free alloys.

Mastered additive technology makes it possible to organize the production of parts from materials that are difficult to cut with high hardness and resistance. The use of wire welding increases material efficiency by 60-90% due to minimal tolerances for machining. At the same time, production costs are reduced by a third. Using this technology, we can develop tool blanks, molds, complex profile jigs, prototypes and mock-ups.

We are working on the issue of its use in the process of mastering the serial nomenclature, as well as in connection with repair and restoration work“, said Viktor Katsai chief welder in the company Proton-PM.

Source and photo credit: Proton-PM/Energomash/Roscosmos

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