Analysis of the possibility of using laser micro-cladding in critical zones of exhaust valves in internal combustion engines

The article presents selected results of laboratory tests on laser cladding of exhaust valve seats in an internal combustion engine using stellite alloy powders as an alternative to standard cladding methods, such as the TIG method.As a result of the conducted research, it was found that laser cladding allows for the creation of precise protective layers for the exhaust valve seats of an internal combustion engine against accelerated wear processes. Due to the high material and technological costs of the laser cladding process on a macro scale, an analysis was conducted on the possibility of using laser micro-cladding as an alternative, economical, and highly promising technology for cladding the seats and the valve head of an internal combustion engine exhaust valve. Based on the preliminary laboratory tests conducted, it was determined that by using a modern Nd:YAG laser with an optical tracking system, it is possible to produce high-quality micro-clads in the critical zones of exhaust valves.
ANALYSE USE LASER MICROPAD WELDING IN THE NEURALGIC ZONES OF THE VALVES OF ESCAPE COMBUSTION ENGINES
In the article were introduced the chosen results of the laboratory investigations of filling with the laser escape valves of the combustion engine with the use of alloys powders stellite , as alternatives for the standard methods of filling with e.g. the method TIG. It was affirmed in the result of conducted audits that filling with laser allowed to creation of precise layers.
Because of the high material and technological costs of the process of filling with of the laser in the scale the macro, the analysis of the possibility of the use laser mikronapawania was conducted, as the alternative, economic and very far-reaching technology to filling with przylgni and the head of the handle of the valve of the escape combustion engine. Affirm on the basis of conducted preliminary laboratory audits, that apply the modern laser Nd:YAG with the optical arrangement following, producing balanced mikronapoin in the neuralgic zones of escape valves possible is. (…)

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