PT  - JOURNAL ARTICLE
AU  - Řehoř, Jan
AU  - Fulemová, Jaroslava
AU  - Rut, Daniel
AU  - Třísková, Veronika
AU  - Kutlwašer, Jan
AU  - Kouřil, Karel
TI  - Reaming of Very Precise Holes in Hydrostatic Component
DP  - 2015 Jun 1
TA  - Manufacturing Technology Journal
PG  - 409--415
VI  - 15
IP  - 3
AID - 10.21062/ujep/x.2015/a/1213-2489/MT/15/3/409
IS  - 12132489
AB  - Nowadays, one of the motive trend in engineering industry is transportation and manipulating technology. The hydrostatic mechanisms belong to the most important components and are created by hydraulic engines, pumps, switchgears etc. Inseparable part of hydraulic engine is a servo-valve which coordinates the fluid flow by a microscopic movement of piston. The servo-valve is a casting, usually made of ductile cast-iron that is necessary to machine. The functionality of hydrostatic circuits is influenced significantly by the precise movement of pistons.Therefore it is necessary to provide the dimension accuracy, machining quality and also the geometric shape of holes. This article describes the issue of holes reaming in hydrostatic components with a use of reamers made of sintered carbide and cermet.