‘In-situ’ temperature measurement to determine the machining potential of different tool coatings

Measuring techniques for various machining operations were developed by DaimlerChrysler. These measuring techniques are based on the projection of the infrared radiation from the tool chip interface onto the scanner of a high resolution thermographic camera. In that way, it is possible to determine the absolute temperature and its distribution in the contact zone between the tool and the chip flow ‘in-situ’, whilst avoiding real time mechanical contact.