The undesired intermittent closure of open contacts or opening of closed contacts. It may occur either when the reed contact is operated, released or when subjected to external shock or vibration.
Unacceptable surface finish produced on drum or rotor. Usually has a herringbone appearance. Possible causes: spindle speed too high, no silencer used, workpiece not mounted rigid enough. A high-pitch, chattering sound will be produced during cut.
Alpine term for when the snowboard vibrates too much, often during high speeds and through turns.
Vibration or instability of a ski on hard snow due to the edges bouncing off the snow instead of biting in.
When the snowboard vibrates unnecessarily. Usually this happens at higher speeds and through turns. Racers are always trying to reduce chatter in their boards so they can stay in control.
Rumbling sound in a band machine caused by trying to take too heavy a cut. The sound comes from overloading the machine or transmission or springing the saw guide post or worktable.
A phenomena that produces periodic marks on the workpiece and sometimes associated with audible sounds during grinding. Caused by vibrations that originate with the rotating grinding wheel, spindles, slides or other components of the machine tools. Surfaces of workpieces often have regularly spaced patterns that can correspond directly to wheel rotation or marks on the grinding wheels produced by wheel dressers. Solutions include changing dressing processes, variation of wheels speeds, addition of damping materials, changing of process parameters such as infeed rates and excitation of machine componets to cancel chatter-causing vibrations. Contact AES for a list of technical resources on chatter.
An undesirable, repetitive pattern created on the surface of a work piece, usually at regular-spaced intervals, due to an out-of-round or out of balance condition in the abrasive machine.
Vibration of a ski caused by the edges bouncing off hard snow instead of biting in.
The vibration produced by a rotating engraving cutter. Generally caused by defective cutters or spindles and results in rough cuts and finishes in the work.