In the actual application process, we learned that the cemented carbide drill is precision-milled from a complete cemented carbide rod using a 5-axis automatic machining center. Carbide drills have a wide range of versatility, with high strength, high hardness performance, fast cutting speed, wear resistance, good red hardness, and are suitable for processing parts of various materials. Cemented carbide drills can be divided into two types without cooling holes and with cooling holes according to the cooling structure.

1. Features and uses of cemented carbide drills:

(1) Good rigidity, high strength, and easy to obtain high drilling accuracy.

(2) Carbide drills are suitable for drilling of more complex materials, and a higher cutting speed can be selected.

(3) Effectively reduce chipping and have good abrasion resistance.

(4) Multi-layered geometric cutting end edge improves chip removal performance and keeps small cutting resistance.

(5) In addition to the commonly used right-angle shanks, there are a variety of shank types, which are suitable for a variety of rigs and drilling machines.

(6) Compared with indexable blade drills, the overall hard alloy drill can be ground 7 to 10 times.

2. Before selecting the key points for machining the carbide drill, choose the appropriate carbide type (P, M, K, S, N, etc.) according to the material of the part, using the machine tool, hole accuracy, cost, etc .; According to the accuracy and depth of the drilling hole, choose different drill sizes and structures, such as two-edged, three-edged, X-type, etc .; choose different cutting parameters according to the equipment and product accuracy.