Surface inspection optical system ABIS II

ABIS II - Defect recognition during production process The majority of defects that can occur during the production process are invisible at the early stages of manufacture. These minute surface defects become visually perceptible later on, however, when subsequent work steps such as paint work have been completed. At that point in time, they can only be remedied using expensive corrective measures. To achieve a high surface quality under the aspect of cost optimization, a wide range of defect types needs to be detected. The reliable and early detection combined with an objective evaluation and classification of defects, such as dents, bumps, sink marks, waviness, constrictions, cracks, etc., is necessary since the costs of removing these defects increase drastically with the progress of work within the production cycle (press shop, body shop, paint shop, final assembly). Consequently, particularly the rework of defects that have been propagated throughout the production process constitutes a substantial factor with regard to manpower and time. It thus has a considerable influence on the economic efficiency of the manufacturing process. ABIS II an optical sensor system that is available in different versions and system concepts allows the fast, reliable and ultra-accurate detection of not only 3D defects on the inspected part (e.g. dents, bumps, sink marks, waviness, constrictions or cracks), but also of contrast-sensitive defects (e.g. scrat¬ches, adhesive residues, dust and dirt) using the new contrast sensor upgrade. Time-consuming and thus expensive re¬work in subsequent process steps, e.g. at the finish belt, can be efficiently reduced.