Thermal coating of cylinder bores is a technology that is in high demand, with increasing the efficiency of the combustion engine as the primary objective.
In laser roughening, the overriding goal is to increase the efficiency of the combustion engine. In order to produce a resilient bond between the coating and the substrate, high-performance roughening processes are required that ensure the function in every respect. Form-fit through undercuts and complete micro-conformal filling of the roughening profile with injection-molded material are the essential prerequisites for adhesion of a coating.
When the high-energy light beam hits the material, energy is absorbed locally and converted into heat. With suitable parameter selection, this leads to the functionally correct formation of the roughness profile in both aluminum and cast iron. The light beam carries out a superimposed rotary and feed motion, so that machining of the entire bore takes place in accordance with the cycle time.
The area-wide microform closure enables high adhesive tensile strengths. These are of particular importance for the motor function of the layer. Thus, the layer is sufficiently resilient in all directions. Another goal is the flexible design of the roughness profile. Blasting parameters and process kinematics enable both spiral profile grooves and closed cavities. Since there is no mechanical processing with high tooling costs, the operating costs are comparatively low. Laser roughening also allows considerable savings in coating material, since high adhesive tensile strengths can be achieved even at low roughnesses.
The process laser roughening is determined by the innovative rotational optics. Due to the compact design of the Gehring machines, twin machining of two cylinder bores simultaneously is possible. The quasi vibration-free operation is made possible by hollow-shaft motor and stationary immersion optics. The use of high-quality materials guarantees a long service life of the optical components.
An industrial camera is used for process monitoring, especially during setup. The periphery for the fully automatic reaming module with optimized footprint consists of an exhaust system and coolant unit for the beam source and rotating optics.
Internal technology and product development
And much more!
Contact us today to learn more about how we can help you with your honing, laser, and stator production machine service needs. Our friendly and knowledgeable team is ready to serve you and look forward to hearing from you!
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Sales
+49 711 / 3405-0
sales.eu@gehring-group.com
