Video: Machining Long Parts Through a Small Machining Center
Video from Chiron America demonstrates the company’s Multi-Profile System, which combines a machining center with in-feed and out-feed accessories so that the compact machine can mill and drill long parts. The system is particularly useful for long aluminum extrusions. The part shown here is a rail for an aircraft’s overhead bins. The part has already been machined—the cycle is retraced here so the machine motions to be seen clearly.
To make the transition to hard turning, you'll need to switch from carbide to CBN inserts, but that is easier (and more economical) than you might think. It's making the jump to much higher surface speeds that might scare you off. It needn't. Here's why.
One of the most common methods of tapping in use today on CNC machines is 'rigid tapping' or 'synchronous feed tapping.' A rigid tapping cycle synchronizes the machine spindle rotation and feed to match a specific thread pitch. Since the feed into the hole is synchronized, in theory a solid holder without any tension-compression can be used.
Fast CNC processing and high-pressure coolant contribute to removing metal at dramatic rates. But what should a shop know about cutting tools in high speed machining?