Каталог Tungaloy зубофрезерование - страница 50

INDEXABLE INSERT GEAR SHAPER 74X8D General Description Gear shaping has been an established machining process for generating These tools were primarily designed for roughing, i.e. gashing ready for gears since the mid-twenties of the last century. Gear shaping is one of the finish-shaping or finish-grinding. Gearwheels with low quality most widely used machining methods for producing gearwheels. It is requirements can be finish-shaped, within limits. indispensable for the production of gearing on certain workpiece geome- tries and on shoulders, but also for special applications, The gear shaping method is generally used whenever index milling or such as non-round contours. hobbing is not possible. Straight- and helical-toothed, internal and Despite the limited productivity compared to other gearing methods such external spur gears can be produced using the gear-shaping method. as hobbing, new developments have been made in the process enginee- From an economic point of view, gear-shaping comes in third, after ring, machinery, tools and technology areas, which considerably improve hobbing and index milling. the economic efficiency and quality of the process. To date, however, very little, if anything, has changed on the used gear-sha- ping tools, except for the accuracy and the materials. Gear shapers made of HSS, and to a lesser degree, solid carbide gear shapers are still used. Disk-type shapers (DIN 1825), bell-type shapers (DIN 1826) and shank-type shapers (DIN 1828) are used, whereby the disk-type shapers are used most often. New to the tool concept is the use and presently unique application of indexable inserts for this machining process. Indexable Insert Gear Shaper 74X8D 50