Modern Machine Shop

JAN 2018

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

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Page 119 of 163

TOOLING AND WORKHOLDING MMS JANUARY 2018 118 Toolholder Damps Vibration, Reducing Wear The Tendo Platinum toolholder from Schunk is designed for durability, ease of use and precision for many milling, drill- ing and reaming applications. Improved brazing technology with a single-cycle brazing and hardening process gives the toolholder rigid and durable tool clamping. Hardened high-grade tool steel ensures long life. The toolholder is designed to offer vibration damping and runout accuracy of less than 0.003 mm (0.0001") at 2.5 times clamping diameter, working with the machine spindle and the cutting tool to reduce wear and damage. The company offers direct clamping in both metric and inch sizes. | Sc hunk Inc. 800-772-4865 Collet Chucks Enable Full-Capacity Spindle Operation The elimination of the drawtube on Lexair's full-bore, fixed-length, self-contained collet chuck enables full-capacity spindle operation. The collet chuck can boost spindle capacity as much as 30 percent, and clamping pressure is unaffected by centrifugal force regardless of rpm. An adjustable grip is designed to lightly grasp delicate tubing or clamp tightly for deep rough-cutting operations. The chuck can be used for bar feeding or slugging on main or sub spindles, rotary indexers and machining center tables. The chuck's open/close time is less than 0.5 sec., and it provides true dead length clamping with no draw- back. A mechanical locking action holds the workpiece, even without air pressure, for failsafe operation. The chuck uses air to release the workpiece rather than secure it, and spring force holds it during machining. Full concentricity adjustment helps maintain accuracy when using master collets with S-type pads. The full-bore chuck is available in seven models with body diameters from 6" to 14", and bar capacity from 2" to 5.5". It also features direct spindle mount- ing for A5, A6, A8 and A11 tooling. | Lexair Inc. 859-255-5001 |

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