Production Machining

AUG 2013

Production Machining - Your access to the precision machining industrial buyer.

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MACHINING CENTERS standard and entry level machines. Tese last two generally do not have thermal displacement compensation control (TDC); the high range machines often have TDC built-in along with spindle cooling. An integral spindle provides outstanding performance in high precision machining with the reduction of noise, vibration and heat. Because the high-speed motor is mounted directly on the assembled spindle shaft, there are no parts for transmission of power, resulting in reduced noise and vibration, minimal power loss and improved cutting efciency. Further, acceleration/ deceleration time may be reduced as a result of a compact integral spindle, contributing to improved cycle times and better surface fnishes. A high performance spindle, which integrates oil-jet cooling and lubrication technology ensures consistent quality results after hours of operation. An oil-jet cooling and lubrication system injects a jet of oil directly onto the spindle bearing for efective cooling. Te motor and spindle assembly are jacket-cooled to limit displacement caused by heat. Temperature is thus stabilized in a short time. :: Smart CNC software technology allows the machine to self-adjust for various parameters with relative ease. their complexity, it absolutely makes sense to separate the milling and turning operation and create balanced throughput in terms not only of volume, but quality. Te throughput can be greater if the operations are separated and can thus achieve a better ROI. MC Hierarchy For machining centers, there is a pyramid of precision: At the top of the pyramid are jig bores capable of 2-micron tolerances, then super-precision machines capable of achieving 2 to 4 micron tolerances, then high precision machining centers in the 5 to 7 micron range followed by 34 PRODUCTION MACHINING :: AUGUST 2013 Tune Machine Through the NC Program When looking for a machine, consider one that can change its dynamics during machining within the software. Normally, a standard machine tool will be tuned at the factory to provide a median type of accuracy. When machines are installed in a shop, they may encounter conditions, usually heat and pressure, that are beyond that median and can reduce the precision of production. Adding on software tricks after the machine is on the shop foor may not have the same benefcial efect as software built into the machine. A factory suite of machining software components can positively impact the safety and the work efciency of the organization as well as the quality of its output. Software is provided with leading machining centers that

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