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Cutting Tools Solid Carbide End Mill Walter USA, LLC has introduced the Walter Prototyp Proto·max Inox, a solid carbide end mill that typically boosts stainless steel machining performance by as much as 50 percent when compared with conventional, universal solid carbide end mills, according to the company. This dramatic performance jump is due to the fact that Walter optimized Proto·max Inox for machining ISO M materials such as stainless steel with features like a four-flute cutter with two internal helical coolant channels for optimized coolant delivery and efficient chip removal—a problem often associated in many stainless steel machining applications, the company states. In addition, the Proto·max Inox features a new TAA coating with a TiAlN base and an optimized micro geometry to increase wear resistance and protect against edge build up. Another key feature is that with its unequal helix angles (35 and 38 degrees) this new end mill is able to achieve low vibration operation, boosting tool life and significantly improving surface quality, the company notes. These features make the Proto·max Inox an ideal choice whenever high machining rates and superior surface finishes in the machining of materials from the ISO M group are priorities, according to the company. . Cooling Jacket for Quick-Rotating Tools Data Flute offers its new Die Mold series of solid carbide ball-nose end mills for hard milling, mold applications. These material and application-specific tools permit machinists to use the newest, most productive, high-speed machining techniques to achieve superior finish, requiring little or no handwork, according to the company. When machining at high speeds, air turbulences frequently influence the coolant and prevent it from optimally reaching the cutting tool. Haimer offers a shrink chuck with the newly developed Cool Flash System, where the coolant wraps itself around the tool like a jacket and protects it against such disturbances. This system guarantees an optimum flow of the coolant, the company states. Haimer is offering these as an option for its chucks that, due to their especially high run-out accuracy, are ideal for high-speed machining. With the Cool Flash-System, in a similar manner to the Haimer Cool Jet System for normal machining, the bores have been introduced in the clamping chuck, where the coolant is transported to the face area of the tool holder. In contrast to the Cool Jet System, where the coolant exits the chuck as a spray pattern toward the tool cutting edge, the Cool Flash has the decisive difference at this point: a disc is positioned at the face side of the Cool Flash chuck, which releases a narrow circumferential gap in the direction of the tool. The coolant accumulates at this point on the Cool Flash, builds up a high pressure in this chamber and is distributed over the entire scope of the tool shaft. From this small reservoir, it flows over the tool shaft directly as a closed jacket and is, therefore, insensitive against air turbulences. At the end of the shaft area, the coolant is pressed into the flutes, flushes them out and then reaches—even at high speeds—the cutting edges of the tool directly without atomizing, where its cooling effect may develop. For more information from Data Flute CNC of Pittsfield, MA, phone 413-499-3895 or visit dataflute.com For more information from Haimer USA of Villa Park, IL, phone 630-833-1500 or visit haimer-usa.com For more information from Walter USA, LLC of Waukesha, WI, phone 262-347-2400 or visit walter-tools.com/us Solid Carbide Ball-Nose End Mills Solid Carbide Micro Drills The Sandvik Coromant solid carbide micro drills can drill holes from 0.073" to 0.116" in diameter. The CoroDrill 862 has a thin TiAlN coating that helps retain cutting edge geometry and provides a smooth surface for chip evacuation. This helps prolong tool life in workpiece materials that include steel, stainless steel, cast iron and aluminum, the company notes. The post treatment on the CoroDrill 862, combined with specially designed point geometry, reduces the thrust forces and promotes fast and efficient chip removal. This is aided further by Advanced Chip Management (ACM) flute geometry, which helps evacuate the chips. This is vital in micro-drilling as even the smallest accumulation can lead to problems such as drill breakage, loss of precision, downtime and scrap, according to the company. The CoroDrill 862 also provides good hole entry and exit, and achievable hole tolerance of IT8-IT9. Internal coolant holes deliver coolant directly to the tip of the drill, even at deep drilling depths, to further assist precision and chip removal. Available in drill lengths of 8-12 x D, the drills are only for use with HydroGrip high precision chucks from Sandvik Coromant. For more information from Sandvik Coromant Co. of Fair Lawn, NJ, phone 201-794-5000 or visit sandvik.coromant.com/us 72 MoldMaking Technology July 2013