Laser Zentrum Hannover e.V.

Street: Hollerithallee 8
Zip-Code: 30419
City: Hannover
Website: www.lzh.de

Long Description: 

On the 20th. June 1986 the Laser Zentrum of Hannover e.V. (LZH) was constituted in a legal form as a registered society under the patronage of the governmental department for economy, technology and transportation. The LZH participates in research and development projects for laser development and laser applications. Furthermore, the LZH provides advice on technical and scientific problems with the goal of combining theory and practice. Another field of activity is the industry-oriented training of specialists for the development, application and handling of laser systems. One exploratory focus of the LZH is the laser treatment of fibre reinforced materials, particularly carbon fibre reinforced plastics (CFRP). This subject is investigated by the Composites group with the focus on repairing and cutting. In addition, the laser transmission welding of thermoplastics on CFRP and techniques for surface modifications are developed.

Products + Services:

  • Process developement for laser applications
  • Feasibility studies
  • Project managemen
  • Further education
  • Process enhancement

Value-Added Steps

Manufacturing Processes
Production Systems
Material Processing
Joining & Assembly Techniques
Surface Technology
Training & Education


Wind Energy
Wind Energy
Automotive Construction
Automotive Construction
Mechanical Engineering
Mechanical Engineering

Competence Description: 

The Composite group of the LZH is investigating different techniques for laser treatment of fibre reinforced materials like CFRP. To this end, cost-efficient, automatable and highquality processes are developed. For example, one of these applications is laser cutting, which is a fast separation process without high tool wear. Furthermore, the LZH explore laser based ablation of CFRP with the long term goal of establishing it as a repair strategy. The advantage of this procedure is the free choice of shape and the experimentally achieved high strength of repaired structures. Laser transmission welding of thermoplastics onto CFRP provides the possibility of joining parts without bonding or riveting. One exploratory focus on the welding process is the improvement of the weld seam quality and strength. The composite group also develops individual applications for industry partners and supports them during the integration of the laser process into their production line.


  • surface activation
  • welding
  • repair
  • cutting
  • laser machining