Carbide Micro Drills Capture Precise Holemaking for Mold and Die Making Requirements
The DB131/DB133 Supreme solid carbide micro drills from Walter USA now come with internal and external coolant capability.
Photo Credit: Walter USA
Walter USA has expanded its solid carbide micro drill line with the addition of the DB131 Suprem micro pilot drill sizes and extended the DB133 Supreme micro drill offering to deep drills up to 30 × Dc. These new drills are said to be critical to achieving maximum process reliability combined with minimal dimensional variations and extended tool life in steel, cast iron, nonferrous, super alloys, hard materials and other materials (ISO P, K, N, S, H and O). Stainless steel (ISO M) is added to the list with internal coolant capability.
The use of Walter grades WJ30EL and WJ30ER ensures that the drills provide high wear resistance. In addition, excellent surface finishes can be achieved the drill’s cutting-edge preparation.
According to Walter USA, a new type of flute design reliably evacuates chips, even with the tinniest drills. This capability ensures that hole depths up to 30 × Dc can be easily achieved with the DB133 Supreme micro drill via its 140-degree point angle. The DB131 Supreme micro pilot drill features a 150-degree point angle. Emulsion, oil or minimum quantity lubrication (MQL) can all be used as a coolant with these drills.
The new DB133 drills without internal coolant are available in a diameter range from 0.020-0.116". (0.5-2.95 mm). The diameter range for the micro drills with internal coolant is 0.028-0.116". (0.7-2.95 mm). Length to diameter ratios (L/D) of 5, 8, 12, 16, 20, 25 and 30 × Dc are standard for micro drills with internal coolant and 5 and 8 × Dc without internal coolant.
This new drill design is effective for applications in the medical, watchmaking, general mechanical engineering, mold and die-making, energy and automotive industries.
Related Content
-
Ten Things You Need to Know about Circle Segment Milling
Considerations for evaluating if circle segment end mills or conical barrel cutters are right for your mold machining applications.
-
Treatment and Disposal of Used Metalworking Fluids
With greater emphasis on fluid longevity and fluid recycling, it is important to remember that water-based metalworking fluids are “consumable” and have a finite life.
-
Precision Meets Innovation at IMTS 2024
After attending IMTS, it's clear that the integration of advanced technologies is ready to enhance precision, efficiency and automation in mold manufacturing processes. It’s a massive event, so here’s a glimpse of what the MMT team experienced firsthand.
