Measurement

Diagnosis of chatter marks

Diagnosis of chatter marks in turning, milling, drilling and grinding

The assessment of chatter problems begins with the manufactured component. A correct diagnosis of the causes is a prerequisite for targeted improvement measures. Vibration waves have to be analyzed seperately from interference waves which can occur when making several simultaneous cuts or can arise because of special rotary to oscillating frequency ratios or because of coupled oscillatory movements. Our experience over 15 years with over 1000 cases using advanced vibration and surface-measuring techniques qualify us as specialists in the detection and classification of chatter problems.


Surface examples

The following practical examples show how vibrations can affect workpiece quality in different processes (milling / drilling / turning / grinding). We would be pleased to support you in analyzing the causes of your specific vibration problem.

Chatter marks during face milling

Download:
vibration-chatter-marks-face-milling.pdf

Chatter marks when milling slots and profiles

Download:
vibration-chatter-marks-slot-milling-profile-milling.pdf

Chatter marks during external and groove turning

Download:
vibration-chatter-marks-external-turning-groove-turning.pdf

Chatter marks during internal turning and fine boring

Download:
vibration-chatter-marks-internal-turning-fine-boring.pdf

Chatter marks during drilling

Download:
vibration-chatter-marks-drilling.pdf

Chatter marks in face turning

Download:
vibration-chatter-marks-face-turning.pdf

Chatter marks in external and internal cylindrical grinding

Download:
vibration-chatter-marks-external-internal-grinding.pdf

Chatter marks during face grinding and profile grinding

Download:
vibration-chatter-marks-face-grinding-profile-grinding.pdf

Waviness / facets on grinding wheels

Download:
vibration-chatter-marks-grinding-wheel.pdf

Chatter marks in milling wood and plastic

Download:
vibration-chatter-marks-wood-milling-plastic-milling.pdf

Chatter marks when machining thin-walled parts

Download:
vibration-chatter-marks-sheet-metal-machining.pdf

Chatter marks in gear milling and grinding

Download:
vibration-chatter-marks-gear-milling-gear-grinding.pdf

Examples of application

  • Precision drilling of car and truck connecting rods.
  • Hard turning of drive shafts and tool shanks.
  • Gear milling of ring gears.
  • Grinding of linear bearings and bearing races.
  • Clamping and grinding of camshafts and crankshafts.
  • External and internal thread grinding of steering rods and ball screw nuts.
  • Centreless grinding of valves, shaft seats and rolling elements.
  • Indentation honing of spur and helical gears

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