BeKaS - Development of new techniques for fabrication of coating compatible edges in shipbuilding using thermal processes

Funded by: the Federal Ministry of Economics and Technology

Time period: 01.07.2007 - 31.12.2009



Project partners

short name company country
CMT Center of Maritime Technologies e.V. Germany
IMAWIS IMAWIS – Maritime Wirtschafts- und Schiffbauforschung GmbH Germany
SLV M.-V. Schweißtechnische Lehr- und Versuchsanstalt Mecklenburg Vorpommern Germany
IPA IPA – Anwendungszentrum Rostock Germany
IFAM Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung IFAM Germany

The “Performance Standard for Protective Coating” (PSPC) recently adopted by the International Maritime Organisation (IMO) sets – among others – significantly increased requirements towards the preparation of so called “free edges” in ballast tanks of all cargo vessels above 500 gross tons and in double hull structures of bulk carriers longer than 150 m. This improved quality is intended to raise the corrosion resistance of ship structures and thus to cope with increasing environmental and safety concerns as well as with longer maintenance and repair cycles. However, the interrelationship between corrosion resistance, coating systems and edge preparation is not yet sufficiently known, and the empirical based requirements set by the standard potentially lead to a high additional work load in the ship new building as well as repair.

The collaborative project “BeKaS” therefore aims to develop innovative and efficient techniques for the edge preparation based on thermal processes (laser- and plasma technology) and to identify feasible application scenarios in shipyards. In addition, comparative tests (according to the IMO) in the project will investigate the interdependencies between edge geometry, coating systems and corrosion behaviour with the final goal to qualify alternatives to the labour intensive 2 mm edge radius, as prescribed in the PSPC. The project thus expects to provide a significant contribution to the productivity of shipyards as well as an impact towards the further development of international goal based standards and regulations.


Tasks connected to CMT:

  • Planning and realisation of cutting edge analyses
  • Survey of actual workflows in the relevant  production areas on various shipyards
  • Development of application-scenarios for the implementation of the new thermal technologies
  • Preparation of a specification for a plants manufacturer
  • Accomplishment of simulation-studies about the flow of material in the shipyard
  • Development of a cost-benefit calculation model
  • Trial-planning and evaluation with statistical methods
  • Preparation of statistical process models for the verification of the reproducibility potential technologies
  • Development of strategies for the application in a concrete shipyard-environment
  • Promotion of the approval in principle by rating the statistical process models
  • Formulation of suggestions for engineer standards modification
  • Administrative and technical project coordination


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