1476 Каталог KENNAMETAL 2013 Инструментальная оснастка для металлорежущих станков Стр.M76

Каталог KENNAMETAL 2013 Инструментальная оснастка Стр. M76 1476 Lab2u

Technical Information Technical Information Balancing Kennametal Balancing (continued) From the approach described in ISO 1940-1, the requirements for maximum residual unbalance become very strict as speed increases. For example, a G 2.5 balancing grade can become unpractical at 25,000 RPM for a tool with a mass of 1 kg. The chart shows that the maximum residual unbalance would be 1 gmm, which could be very time consuming to be achieved or even beyond the accuracy of the balancing machine. (continued) Comparing the cutting forces can provide a reference for the balancing requirements. Generally, finishing operations generate lower cutting forces and require a better balance quality. Though rotating components should always be balanced, in most cases it is sufficient to keep the unbalance forces to 5-10% of the cutting forces. M76 Kennametal