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Dormer's new Elect APP range of micro drills has been engineered for exceptional performance in small diameter drilling applications in a wide range of materials and components. Available in two lengths to support drilling depths to 8 x D (R530) and 12 x D (R531), both feature Dormer's ACM (Advanced Chip Management) flute geometry. This encourages the production of small, easily evacuated chips and minimizes machine downtime and ensures even tool wear which, in turn, prolongs tool life.
Smooth and efficient chip evacuation is further facilitated by aµm-thin layer of Dormer's proprietary Super-Flow coating. Specifically developed to optimise performance, it brings a host of benefits including outstanding wear resistance and significantly enhanced productivity. Optimal pressure and volume of coolant is crucial for continuous, high speed, micro drilling of deep holes.
With internal coolant holes throughout the Elect APP micro drilling range, cutting fluid is delivered accurately to the tip of the drill, cooling the cutting area and facilitating high performance in most engineering materials, including stainless steel, aluminum and titanium. In addition, the specially designed point geometry helps to reduce thrust forces required to drive the drill through the workpiece, resulting in precise hole tolerance, minimal entry and exit burr and reduced cost per hole.
Engineered products for hole diameters to 15 x D are available on request, as are different flute lengths across the entire product range.
Related Glossary Terms
- burr
burr
Stringy portions of material formed on workpiece edges during machining. Often sharp. Can be removed with hand files, abrasive wheels or belts, wire wheels, abrasive-fiber brushes, waterjet equipment or other methods.
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- cutting fluid
cutting fluid
Liquid used to improve workpiece machinability, enhance tool life, flush out chips and machining debris, and cool the workpiece and tool. Three basic types are: straight oils; soluble oils, which emulsify in water; and synthetic fluids, which are water-based chemical solutions having no oil. See coolant; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- tolerance
tolerance
Minimum and maximum amount a workpiece dimension is allowed to vary from a set standard and still be acceptable.
- wear resistance
wear resistance
Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.
