Experimental Investigation of 3D Scanheads for Laser Micro Processing

Stefan Dimov, Pavel Penchev, Debajyoti Bhaduri

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
255 Downloads (Pure)


The broader use of laser micro processing technology increases the demand for executing complex machining and joining operations on free-from (3D) workpieces. To satisfy these growing requirements it is necessary to utilise 3D scanheads that integrate beam deflectors (X and Y optical axes) and Z modules with high dynamics. The research presented in this communication proposes an experimental technique to quantify the dynamic capabilities of Z modules, also called Dynamic Focusing Modules (DFM), of such 3D scanheads that are essential for efficient, accurate and repeatable laser micro processing of free form surfaces. The proposed experimental technique is validated on state-of-art laser micro-machining platform and the results show that the DFM dynamic capabilities are substantially inferior than those of X and Y beam deflectors, in particular the maximum speed of the Z module is less than 10% of the maximum speeds achievable with X and Y optical axes of the scanhead. Thus, the DFM dynamics deficiencies can become a major obstacle for the broader use of high frequency laser sources that necessitate high dynamics 3D scanheads for executing cost effectively free-form surface processing operations.
Original languageEnglish
Pages (from-to)55-59
JournalOptics & Laser Technology
Early online date29 Jan 2016
Publication statusPublished - Jul 2016


  • laser micro processing; 3D scanheads; dynamic focusing module; dynamic capabilities


Dive into the research topics of 'Experimental Investigation of 3D Scanheads for Laser Micro Processing'. Together they form a unique fingerprint.

Cite this