TY  - EJOU
AU  - Staniewicz-Brudnik, S. Barbara
AU  - Figiel, F. Paweł
AU  - Skrabalak, S. Grzegorz
AU  - Karolus, K. Małgorzata
TI  - Supporting Body Material for Ceramic Diamond Grinding Tools
T2  - Journal of Applied Materials Engineering

PY  - 2020
VL  - 60
IS  - 2
SN  - 2658-1744

AB  - The characteristics of abrasive tools (the type of grinding wheel, granulation of the super hard grain, type of structure, hardness, and the type of binder) contain information on the type of supporting body materials used (e.g., dural, ceramic, steel). In this work, diamond wheels were obtained on ceramic supporting bodies, containing a sintered mixture of white alumina 99A granulation F320, green silicon carbide 99A granulation F320, and binder Ba23 bis, together with modifiers. The mechanical properties (hardness, bending strength) of ceramic supporting bodies were tested. The structure of the phase boundary of the ceramic supporting body–abrasive grinding tool was analyzed on a BEC (backscattered electron composition) image by using SEM (Scanning Electron Microscopy). It was found that the hardness of the supporting body was slightly lower (70–75 HRB) than the diamond wheels (76–81 HRB). The bending strength of the supporting bodies was high (85 ±2 MPa). The BEC image from the scanning microscope did not show a sharp transition between the ceramic supporting body and the grinding wheel. Preliminary operational tests showed significant improvement in grinding wheel efficiency in comparison to diamond tools with the same ceramic binder on a duralumin supporting body during machining of G30 sintered carbide bush.
KW  - ceramic supporting body
KW  - vitrified bonds
KW  - diamond wheels
KW  - corundum
KW  - silicon carbide
DO  - 10.35995/jame60020004