Technical articles on CNC machining processes, machining problems, tooling, surface finish, tolerances, and practical shop-floor solutions.
Tool chatter starts when the cutting system loses stability.
In practical terms, the tool, machine, and workpiece stop behaving like a rigid structure and begin vibrating against each other. Once that vibration becomes self-exciting, surface finish degrades, tool life drops, and dimensional accuracy becomes difficult to hold.
On the shop floor, chatter rarely appears without …
Anyone who has machined copper knows it doesn’t behave like most metals. A cut can look clean one moment and start smearing the next. The same traits that make copper valuable—high conductivity, rapid heat transfer, and consistent electrical performance—also make it sensitive to tool sharpness, chip flow, and small shifts in clamping.
If you’ve worked …
