Burrs & scratches

Detect, identify and quantify 3D microdefects with Optocomb 3D scanners


Machinary parts are constantly battling burrs. Due to the nature of the construction method, it is difficult to completely eliminate burrs, but burrs, which are defects in the height direction, often cause important functional problems. However, since burrs are small and have a height dimension, it is very difficult to detect them, and how to prevent burrs from flowing into the next process is a very difficult manufacturing issue. Because burrs are generated during processing, they often occur deep within complex structures. Inspecting burrs deep inside the structure is always extremely difficult. However, using optical comb technology, the long working distance makes it possible to easily automatically inspect burrs deep inside uneven shapes. Furthermore, we can quantitatively determine the height of burrs with an accuracy of 1 µm. Similarly, since scratches can be determined quantitatively in the depth direction, a threshold value can be set in the depth direction to prevent over-detection of defects, enabling production at the correct yield.


Purpose of the installation

> Cyclo reducer: Scratch inspection
> Harmonic Drive: Burr inspection
> General casting, forging, and processed products: Inspection of dents

Problems before the installation

> Scratches and burrs may be overlooked due to poor lighting during the inspection process.

> Deploy automatic 100% inspection on the production line.


> Full 3D profile of 3D microdefects

> 1 micrometer resolution

> Fast & automated scanning

> User-friendly measurement and analysis

> Automated detection of microdefects

> Extracts the 3D dimensions of micro-defects

> Automated inspection report generation

> Export your data and inspection reports

3D microdefects detection

Engineering is a world where quantitative judgment should and can be made, but this has often been difficult to achieve on a manufacturing floor dominated by human inspection. With the automated inspection solutions offered by us, quantitative inspection and engineering of micrometer defects is finally possible: with their 1μm resolution, our Optocomb 3D scanners have a reliable track record for the fast detection, identification and quantification of a large range of 3D defects such as dents, scratches, particles, burrs and more.


For example, our Optocomb 3D scanners can detect micro-defects such as this 40-μm-high burr appearing at a machined edge. Burrs are a constant battle for machined parts. Yet, they often lead to significant dysfunction during the assembly process or the final product operation. The detection of burrs is thus crucial but difficult, because they are typically a few tens of μm high and are rarely generated on a flat surface: they often occur at the back of complex structures that are extremely difficult to inspect with traditional methods. By contrast, users of Optocomb 3D scanners can leverage their coaxial configuration and long working distance to easily inspect burrs within complex structures. In particular, with its 1 μm resolution, our M5 ultra-high resolution scanner can be a fast and reliable solution for your burrs inspection process.


Defects in bores

 Many medium and large parts have cylindrical features that need to meet high quality requirements and the ever-demanding design of modern manufacturing. We have thus developed its Helical Scan. It combines our  high-resolution Optocomb sensor with a rotating mirror that translates within the structure along its rotating axis to probe the inner walls of bores. With Helical Scan, you can dive deep into bores and perform the visual inspection of the smallest particles, scratches and bulges of your manufactured parts: cylinder blocks, bearings and more.


Automated inspection

Optocomb Suite, our comprehensive metrology software can leverage the 3D Optocomb data to fully automate the inspection process. Its powerful detection algorithms can not only detect and identify microdefects, but also quantify their three-dimensional dimensions in an instant. Based on your own manufacturing criteria, Optocomb software Suite will automatically assess the quality of your part and generate inspection reports. With such an automated toolbox, the human eye is no longer required to assess the quality of manufactured parts, and manufacturers can rationalize their production system.