High-Performance Aluminum Automotive Machining CoroMill 5B90 is a high-performance state-of-the-art tool for fi nishing aluminum automotive components for applica- tions like machining cylinder heads, gearboxes, valve blocks, motor block crankshaft, and deck faces. An innova- tive cutting edge arrangement delivers excellent surface quality without burr formation and reduces cost-per-part by up to 30%. The application-specifi c fi nishing cutter allows controlled, high- feed machining process resulting in improved part quality. Without a cost- intensive insert adjustment, setup time


ing to achieve excellent wear resistance. The spiral fl ute se- ries has adopted a variable-helix fl ute design, which encour- ages stable chip evacuation and reduces cutting forces. The spiral point series has unique geometry that enables greater


can be reduced by up to 66%. While each tool is custom-made for cus- tomers, PCD inserts are offered from stock. When machining the cylinder heads of a four-cylinder engine made from AlSi9Cu-1 at a cut depth of 0.7 mm, the new CoroMill 5B90 (diameter of 160 mm, 9 cutting edges) achieved a tool life of 40,000 parts (at a rotational speed of 7000 rpm and a feed rate of 12,500 mm/min). Sandvik Coromant Ph: 201-794-5000 Web site: www.sandvik.coromant.com/us


All-Purpose Tap Series Exotap A-Tap is an all-purpose tap se- ries designed to simplify tool manage- ment and to excel in a wide variety of materials and applications. The Exotap A-Tap is made from powdered metal HSS and has OSG’s patented V coat-


January 2015 | AdvancedManufacturing.org 129


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