Artykuł

Vol: 35 , Nr: , Art.: 4
Tytuł / Title:
The influence of technological parameters on surface texture of dld cemented tungsten carbide after grinding
Wpływ parametrów technologicznych na strukturę geometryczną powierzchni węglika wolframu po szlifowaniu
Autorzy / Authors:
WSTAWSKA Iwona
Institute of Mechanical Technology, Poznan University of Technology
Słowa kluczowe / key words:
DLD cemented tungsten carbide, grinding, surface texture, machinability
węglik wolframu, szlifowanie, struktura geometryczna powierzchni, skrawalność
Streszczenie / Summary:

This paper presents the analysis of surface texture after grinding of claddings of tungsten
carbide (WC). The workpiece material was cemented tungsten carbide produced by DLD (direct laser deposition) technology. The 3D surface topography was analyzed and the measurement results were obtained using Hommewerke T8000 surface profiler. The grinding process included two phases, i.e. stock removal and spark out. During the stock removal part axial depth of grinding
ap was selected as 5÷20 μm. Subsequently, a sample was sparked out. The number of spark out passes was equalled to 20. The variable parameters were feed vf and depth of cut ap. The main factor affecting machined surface roughness is the occurrence of micro grooves and protuberances
on the machined surface, as well as other phenomena connected, inter alia, with the mechanism for material removal. This work can be also the starting point to the further research, related
to the grinding performance analysis of tungsten carbide during the cutting with the tools with undefined geometry.