Manufacturers looking for a high performance VMC machine will find the new robust Ganesh VFM 4020 Express vertical machining center worthy of consideration. The VFM 4020 table measures 40” by 23” and the machine weighs over 6-tons and features cross-roller linear ways to dampen cutting vibration for superior surface finish and improved tool life. With pre-tensioned double-anchored ballscrews and 40-block look-ahead in the FANUC OiMD control the VFM 4020 Express is designed to generate precise programmed feature definition. The 20-HP direct-drive spindle supplies spindle speeds up to 15,000 RPM. Axis moves are X=40”, Y=23”, and Z=23”. Up to 40-tools are available with the #40-taper ATC, and both an indexer and a full 4th axis rotary and 5-axis trunnion table are available. Ganesh also builds full 5-axis contouring versions of their VMCs.
Understanding the effects of injection on the core, slide and associated components is critical to selecting the best side-action methods for a given application. This first of two articles will discuss the basic physics underlying all side-actions.
A review of the characteristics and considerations when handling graphite dust.
While both hot runner and cold runner systems have their benefits, for design flexibility as well as reduced cycle times and costs, hot runner systems will probably be the better choice.