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Sensors (Basel). 2009;9(3):1967-79. doi: 10.3390/s90301967. Epub 2009 Mar 17.

Implementation of 3D Optical Scanning Technology for Automotive Applications.

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1
Uludağ University, Vocational School of Technical Sciences, 16059 Görükle Campus, Bursa - Turkey; E-Mail: abdilkus@uludag.edu.tr.

Abstract

Reverse engineering (RE) is a powerful tool for generating a CAD model from the 3D scan data of a physical part that lacks documentation or has changed from the original CAD design of the part. The process of digitizing a part and creating a CAD model from 3D scan data is less time consuming and provides greater accuracy than manually measuring the part and designing the part from scratch in CAD. 3D optical scanning technology is one of the measurement methods which have evolved over the last few years and it is used in a wide range of areas from industrial applications to art and cultural heritage. It is also used extensively in the automotive industry for applications such as part inspections, scanning of tools without CAD definition, scanning the casting for definition of the stock (i.e. the amount of material to be removed from the surface of the castings) model for CAM programs and reverse engineering. In this study two scanning experiments of automotive applications are illustrated. The first one examines the processes from scanning to re-manufacturing the damaged sheet metal cutting die, using a 3D scanning technique and the second study compares the scanned point clouds data to 3D CAD data for inspection purposes. Furthermore, the deviations of the part holes are determined by using different lenses and scanning parameters.

KEYWORDS:

3D modeling; 3D optical scanning; part inspection; reverse engineering

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