Bonding, coating, painting, printing and sealing operations are commonly deployed in modern manufacturing. The surface preparation processes (e.g. cleaning, abrading, activating, and passivating) performed prior to these operations alter the chemical composition of the surface and are crucial to the adhesion performance of the final products. Inspecting the surface chemical composition is critical for monitoring and controlling the efficacy of the surface preparation process, but inspections have traditionally been performed using dyne subjective and destructive methods (e.g. dyne ink and water break tests) which are inappropriate for an automated manufacturing environment.
Machine vision systems are commonly used in manufacturing to assess the dimensional analysis, printing alignment, finish/luster, and colorimetry of surfaces but, to date, have not been leveraged for the inspection of surface chemistry. This presentation introduces a technology that combines machine vision systems with ballistic drop-water, contact-angle analysis resulting in a surface chemistry inspection technique tailored for the production environment. A fully automated contact-angle measurement system brings a novel and precise technique from the laboratory onto the manufacturing line that can be easily integrated with articulated robotics systems and can be controlled through modern industrial communication protocols.
Attendees will develop an appreciation of surface preparation processes and learn about the impacts of surface chemical composition on interfacial adhesion product performance. They will become familiar with surface cleanliness characterization techniques and be more able to identify the critical control points within their manufacturing processes for automated surface quality control.