Influence of Surface Topography of HSS Edges Produced by Different Methods on Their Technological and Functional Properties
[ 1 ] Instytut Technologii Mechanicznej, Wydział Budowy Maszyn i Zarządzania, Politechnika Poznańska | [ P ] pracownik
2019
rozdział w monografii naukowej
angielski
- Conventional and sintered high-speed steels
- Durability
- Coefficient of friction
- The volume of oil surface
EN The determination of the applicability range of conventional high-speed steel and sintered high-speed steel is only seemingly simple and obvious. According to the literature, the properties of cutting edges made of both kinds of steel depend mainly on the distribution of carbide phases in the steel. However, earlier research of the present authors indicates that the topography of the surface of cutting edges is at least equally important in determining the functional properties of the edges. Different surface topography in the case of conventional high-speed steel edges and sintered high-speed steel edges leads to different durability of edges in dry friction conditions and in the presence of the lubricant, at different cutting speeds. Contrary to expectations, the sintered high-speed steel edges do not always display better properties than the cutting edges made of conventional high-speed steel. Therefore it is necessary to determine the applicability ranges of both kinds of steel. In article selected fragments of investigations of technological and functional properties of cutting edges made of conventional and sintered high speed steel with similar chemical composition are presented. Investigations of technological and functional properties have comparative character and concern among other things estimation of chemical composition, hardness, structure and durability during toughening steel machining.
31.12.2018
313 - 330
20