✦ LIBER ✦
An Ultrasound In-Process-Measuring System to Ensure a Minimum Roundness Deviation for Rings During Turning
✍ Scribed by D. Stoebener; M. Dijkman
- Publisher
- International Academy for Production Engineering
- Year
- 2007
- Tongue
- English
- Weight
- 237 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0007-8506
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✦ Synopsis
The turning process requires a clamping of the workpiece. If the fixing of a thin-walled workpiece (i.e. a ring) is realised with a three-jaw-chuck, distortion of the outer diameter of the workpiece occurs, leading to a varying circumferential wall thickness on unclamping. This paper presents an ultrasound system for the in-processmeasurement of these workpiece distortions. The measurement principle is based on the determination of phase differences between echoes of an ultrasound burst. The measured in-process values can be used to control the turning process with a fast tool servo.