Ready mixed bonds for core drills
Also for core drills the expectations on the metal powder bonds are varying. Free cutting i.e. speed is always required especially in the construction industry. The typical side stress, which often occurs during drilling, requires a bond with a very high ductility. For most applications the matrix must be easy to braze, however, we are now also getting more and more inquiries for core drill powders to be laser welded.
Bond | Main component | Hardness | Density (g/cm³) | Hot pressing range (°C) | Cold pressability | Application | Sintering data |
V5-881 | Cu, Co | 85 HRB | 8,72 | 760 | good | glass drilling | |
Diamix-C20 | Fe, Cu, Co | 91 HRB | 8,13 | 760 - 780 | medium | concrete, granite, can be also used dry | |
Diabase-V21B | Fe, Cu, Co | 90 - 95 HRB | 7,95 | 820 - 860 | medium | concrete, granite | |
V10-881 | Co, Cu | 100 HRB | 8,75 | 820 - 860 | good | granite, hard stone, concrete, can be also used dry | |
V22-799 | Co, Bz | 101 HRB | 8,82 | 780 - 860 | good | concrete, granite | |
V23-801 | Co | 101 HRB | 8,77 | 820 - 980 | good | concrete, granite | |
BD-126 | Co | 101 - 102 HRB | 8,70 | 940 - 980 | medium | granite, concrete | |
BD-11 | Co | 106 HRB | 8,77 | 780 - 860 | good | concrete, granite, can be also used dry | |
V14-315 | WC, Co, Cu | 44 HRC | 10,66 | 900 - 940 | medium | asphalt, geen concrete, limestone, abrasive natural stone | |
V23-300 | WC, Co, Bz | 50 HRC | 11,76 | 980 - 1020 | medium | asphalt, green concrete, abrasive natural stone | |