Tag Archives: Adhesion Society
BTG Labs’ Chief Scientist Dr. Giles Dillingham recently presented at the 40th annual meeting of the Adhesion Society. An elected Fellow of the Adhesion Society, Dr. Dillingham has been contributing to this community since 1980.
Giles’ presentation, “Control of Cleaning Processes to Maximize Sealant Performance,” focuses on quantifying parts washers and sealant processes. The importance of monitoring cleaning processes in preparation for sealing is becoming increasingly important in the automotive industry, as sealant processes such as such as FIPG (formed in-place gaskets) are replacing traditional fasteners. However, when sealing, the surface must be clean and clear of contaminants in order to guarantee the bond.
As FIPG relies on properly made bonds, contaminants preventing the success of those bonds must be monitored and properly expelled. There is a wide range of assembly liquids that can interfere with the bond of FIPGs–cutting fluids, die lubes, corrosion inhibitors, as well as particulates generated from casting and machining. This paper shows the importance of quantifying parts washers in order to ensure the part is properly prepared to bond. An engine casing was cleaned in two different parts washers. After each wash, Surface Analyst measurements were taken across the engine casing. Figures within the paper show different measurements and the inconsistency throughout the casing from just one parts washer. Some areas showed low contact angle (indicating a successful wash) while others showed high contact angle (indicating an improper wash). …Read More
A Meeting of the Adhesion Society
Annually, scientists, engineers, manufacturers, and students professionally concerned with the science and technology of adhesion, gather for a meeting of the Adhesion Society. Since 1978, this gathering has brought together these great minds to discuss, present, and learn the results of research and the newest findings in the science of adhesion.
BTG Labs’ Chief Scientist Dr. Giles Dillingham has been presenting regularly since the late 1980s. In 2006, he was elected Fellow of the Adhesion Society in recognition of his contributions.
This year he will be presenting at the 40th Annual Meeting happening February 26 – March 1 in St. Petersburg, Florida. Dr. Dillingham will present on a paper entitled, “Control of Cleaning Processes to Maximize Sealant Performance.”
Controlling the cleaning processes of sealing surfaces in power train components is the key to long life and low warranty percentages in automotive manufacture. One of the final steps in the die-cast and machining process is cleaning. Current commercial washer systems can be quite effective at removal of particulate contaminates. The efficiency of washer systems has traditionally been evaluated using the Millipore Test. This method measures the mass of particulates post washing.
Adhesion and Surface Processes
Dr. Giles Dillingham, President and Chief Scientist of BTG Labs, will be teaching two short courses at the annual meeting of the Adhesion Society in San Antonio, TX on Friday and Saturday, February 19 and 20, 2016.
The courses, titled “Surface Energetics and Adhesion” and “Surface Modification and Surface Analysis,” are comprehensive introductions to the science and technology of adhesive bonding, adhesive chemistry and formulation, and design of adhesively bonded structures. …Read More
A Deep History in Materials Science
President and Chief Scientist of BTG Labs, Dr. Giles Dillingham’s fascination by the connections between the invisible (the molecular structure of the world around us) and the perceivable (the properties and behavior of materials and objects) stems from a very early age.
It wasn’t until he had nearly completed a degree in biology that he discovered the field of study that formalizes this broad interdisciplinary subject: Materials Science. After finding this new specialty, he went on to earn a Ph.D. from the University of Cincinnati in 1987. He used advanced surface analytical tools to demonstrate the ability of surfaces to profoundly influence the molecular structure of adhesives at the interface. …Read More