The application of laser texturing in surface layer patterning of the combustion engines elements

• Autorzy: Napadłek W. , Woźniak A. , Chrzanowski W.

Identyfikatory

DOI

10.5604/12314005.1161771

• Języki publikacji: EN

Abstrakty

EN

In this paper, selected examples of the laser texturing of the surface layer patterning of the elements of the combustion engines were presented. A laser oil micro-container fabrication method was presented. Finishing cylinder liner, spigot of the camshaft, spigot of the crankshaft, rod and piston pin of the combustions engine were patterned. Laser patterning was done with the Nd: YAG laser with wavelength of λ=1064 nm. The manufactured micro-containers provide better lubrication of the friction associations. The conducted experiments allowed obtaining very regular surface texture what was found to be advantageous to the tribological processes and decrease of the wear of the frictional association in the combustions engines. Micro-bowls and micro-grooves were formed on the selected elements of the crank-piston elements and timing gear elements, including: the main spigots and rod spigots of the crankshaft, side surfaces of the base and the connecting rod head, piston pin and peg of the camshaft of the ZI type 126A1 engine. Textured elements of the piston-rod system and the camshaft were then successfully applied in a real object in so-called “cold ignitions” in low temperature chamber. With the use of laser ablation texturing, at optimized experimental parameters, it is possible to form on the piston-rod and timing gear elements oil micro-containers with varied shapes and surface coverage. It allows improving the association conditions in these systems, especially due to the formation of oil microfilm, which efficiently separates mentioned elements even while under high thermal, heat and mechanical load.

Słowa kluczowe

EN

laser ablation micro-treatment; surface layer; microstructure; micro-oil containers; laser texturing

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2015
• Tom: Vol. 22, No. 1
• Strony: 235--242
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Napadłek W.

• Military University of Technology, Faculty of Mechanical Engineering Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone]

autor

Woźniak A.

• Military University of Technology, Faculty of Mechanical Engineering Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone]

autor

Chrzanowski W.

• Military University of Technology, Faculty of Mechanical Engineering Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone]

Bibliografia

• [1] Kozaczewski, W., Construction of the piston-rod associations in the combustion engines, WKiŁ, Warsaw, 2004.
• [2] Napadłek, W., Laser ablation microprocessing of elements of internal combustion engine, Journal of Kones Powertrain and Transport Vol. 14, No. 4, , pp. 273-284, 2007.
• [3] Napadłek, W., Bogdanowicz, Z., Kowalczyk, S., Patterning of the surface layer of the cylinder sleeve in combustion engines, Czasopismo Techniczne Mechanika, Wydawnictwo Politechniki Krakowskiej, Silniki Spalinowe Vol. 2, No. 6-m/2004, pp. 582-592, KONMOT-AUTOPROGRES, 2004.
• [4] Napadłek, W., Woźniak, A., Laser texturing of the pin crankshaft of the combustion engine, Logistyka No. 6/2011, pp. 2987-2996, Poznań, 2011.
• [5] Napadłek, W., Woźniak, A., Burakowski, T., and at al., Research on the laser ablation texturing fundamentals of the combustion engines for friction resistance improvement, Individual Research Project No. 5102/B/T02/2011/40, WAT, Warsaw, 2011.
• [6] Napadłek, W., Bogdanowicz, Z., Woźniak, A., Marczak, J., Rycyk, A., Technologiczne zastosowania mikroobróbki laserowej w modyfikacji warstwy wierzchniej tulei cylindrowych silnika spalinowego, Prace Instytutu Elektrotechniki, Zeszyt 237/2008, pp. 61-67, (in Polish), Warsaw, 2008.
• [7] Napadłek, W., Woźniak, A., Teksturowanie laserowe czopów wału korbowego − wstęp do nowej technologii, Autobusy Technika, Eksploatacja, Systemy Transportowe, No. 3, pp. 1851-1861, (in Polish), 2013.
• [8] Napadłek, W., Woźniak, A., Teksturowanie laserowe warstwy wierzchniej sworznia tłokowego silnika spalinowego w aspekcie tribologicznym. Problemy Eksploatacji, No. 2, pp. 125-132, (in Polish), 2012.