Sandvik CoroDrill DS20 indexable drill
Sandvik CoroDrill DS20 indexable drill showing insert position
The CoroDrill DS20 from cutting tool and tooling system manufacturer Sandvik Coromant is the company's first indexable drill concept capable of producing hole depths up to 7xD. "The drill, which includes completely new designs for both the body and inserts, provides users with reliable, predictable chip control and outstanding penetration rates in all 4-7xD applications," said a Sandvik Coromant spokesperson.
Replacing the existing CoroDrill 880 and CoroDrill 881 tools, 4-5xD CoroDrill DS20 indexable drills are designed to provide tool life improvements of up to 25% and productivity gains up to 10%, depending on workpiece material. The 6-7xD variants represent an entirely new capability range of indexable drills from Sandvik Coromant. To complement the introduction, the company is releasing a new Modular Drilling Interface (MDI) that acts as a coupling between the drill and adapter is available in Coromant Capto and HSK shank types.
"Among the most important factors when drilling to depths of more than 5xD are controlled cutting forces, secure chip evacuation and high centering capabilities," explained Håkan Carlberg, Senior R&D Engineer, Indexable Drilling, at Sandvik Coromant. "Going from a 5xD to a 7xD drill, the theoretical difficulty increases approximately threefold due to an increased inclination to bend. Designing the CoroDrill DS20 7xD drill required careful consideration of around 50 parameters that all depend on each other. The outcome is improved process security through lower forces and lighter cutting, particularly at entry. In turn, users achieve lower cost per hole, the ability to drill deeper and reduced sound levels."
"The drill body is strong and fatigue-resistant with higher levels of stiffness than ever achieved before, while chip flute shapes are individually designed for each drill size and insert," said the spokesperson. "In addition, next-generation 'double-step' technology reduces entry cutting forces by up to 75% compared to CoroDrill 880 tools, improving centering capabilities. Strong insert design and bulk strength provide extra toughness, with four true cutting edges on both center and peripheral inserts."
"Regarding the new MDI, double centering with high fitting accuracy enables good run-out precision and optimal repeatability," continued the spokesperson. "Here, flange and surface contact between the drill body and nut provides increased stability and promotes hole quality. One size can be used for several drill diameters."
CoroDrill DS20 indexable drills are initially available in diameters of .591" to 1.575" (15 mm to 40 mm) with a selection of shank types, insert sizes, grades and geometries to suit all material types and applications, including those found across the general engineering, automotive, oil and gas, pump and valve, and aerospace sectors. Additional diameters up to 2.559" (65 mm) will be added to the program.
For more information contact:
Sandvik Coromant
1702 Nevins Road
P.O. Box 428
Fair Lawn, NJ 07410-0428
800-SANDVIK / 201-794-5000
us.coromant@sandvik.com
www.sandvik.coromant.com