Taper-to-Taper Technology Advances Metalworking Toolholding

Taper-to-Taper Technology Advances Metalworking Toolholding Introduction In metalworking machining systems, precision and quality are critical, and excessive amounts of vibration due to underperforming toolholding can result in scrapped parts and huge production losses. One major cause of vibration is runout — a condition where the metalworking cutting tool fails to rotate true and on center. Out-of-balance, poorly manufactured toolholders generate vibration that increases exponentially from the toolholder to the cutting tool tip. So the longer the cutting tool, the higher the levels of runout....

A special patented metal processing method creates a unique wear-resistant surface treatment on the powRgrip collets. This extremely hard surface finish contributes significantly to the system’s longevity and repeatability. All powRgrip collets accommodate through-coolant and are rated for up to 2,000 psi. Collets are also available with coolant flush channels/grooves that direct a coolant jet around cutting tool shanks even when using solid, non-through-coolant tools. powRgrip system toolholders are balanced by design. And in terms of speed, holder assemblies are balanceable for use up to 42,000...

as well as standard forms, sizes and gauge lengths. Standard machining applications include drilling, reaming and milling — both roughing and finishing operations. The system’s special holders extend tool life during tapping operations by up to 150 percent when compared with rigid tapping holders. The special holders compensate for synchronization errors caused by the dynamic motion of spindle motors and linear motors that occurs during tapping. Comparison to Other Systems Other toolholding systems, such as shrink-fit, fail to deliver the same clamping force as taper-to-taper collet-holding systems,...

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