309 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.311

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 311 0309 Lab2u

RIGIDITY ANALYSIS Integral Shank: An improvement over the straight shank adaption is an integral shank. This eliminates the joints required with rotary tool holders and greatly improves length-to-diameter ratios. Many standard Ingersoll end mills are available with No. 50 taper adaptors. Other tapers are available upon request. No. 50 tapers have a standard .125 gap between the flange and spindle face. To eliminate the gap many Ingersoll machines have a simultaneous fit adaptor designed to be used in conjunction with a precision spindle face. Because the adaptor flange has bearing on the spindle face the joint is more rigid. Flat Back Drive: Another way to eliminate the .125 gap is to use a flat back drive system. It consists of a centering plug with a pilot diameter on the spindle. The end mill is bolted directly to the spindle face. This adaption is often used for large heavy-duty end mill operations requiring maximum rigidity. HSK Adaption: The HSK tool holder is designed to provide simultaneous fit on both the spindle face and the spindle taper. At high speeds centrifugal force causes the spindle to grow slightly. The face contact prevents the tool from moving up the bore. The hollow shank design is also susceptible to centrifugal force but is designed to grow with the spindle bore at very high speeds. I.D. clamping actually tightens its grip as spindle speed increases. Supporting the cutting tool and holder in both the axial and radial planes creates a significantly more rigid connection between the tool and spindle. Centering Plug Best: Flat Back Drive Best: HSK Adaption Moreover HSK end mill holders are available in a variety of clamping styles including shrink fit for solid carbide shanks; hydraulic for steel shanks collet and Weldon styles. Choose the most rigid and accurate assembly possible. Other HSK advantages include lighter weight lower deflection under load extremely accurate repeatability increased torque transfer capabilities and significantly improved dynamic runout over 50-taper adaptions at high speeds. 311