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Technical
Meeting Announcement Thursday,
February 16, 2006 DINNER MEETING: Connie’s Family Restaurant, TOPIC: Cold Spray Deposition Technology Cold
Spray is an emerging solid state material deposition process in which
coatings are applied by exposing a substrate to a high velocity jet of
particles accelerated by a supersonic jet of compressed gas. The process is considered "cold"
because of the relatively low temperatures of the expanded gas and particle
stream impact on the substrate. Using
this process, researchers have successfully deposited iron, stainless steel,
nickel, copper, aluminum, and many other alloys. By
using gas jet and particle temperatures well below material melting
temperatures, cold spray offers many advantages over conventional gas-thermal
spray methods. These include
compressive rather than tensile stresses, wrought-like microstructure, near
theoretical density, and freedom from oxides and other inclusions. Moreover, the footprint of the cold spray
beam is very narrow, yielding fast growth rates of coating thickness with
better control over the shape of the coating, often without the need for masking. This
talk will provide an overview of the cold spray process, present some results
of past and current research activities, and discuss potential applications
for the technology. SPEAKER: Andrew DeBiccari, Ph.D., Materials Technologist, Pratt & Whitney, Dr. DeBiccari
received his Ph.D. in Ocean Engineering in 1986 from the Massachusetts
Institute of Technology, where his research interests were in the field of
welding and fabrication induced distortion and residual stresses. After receiving his degree, Dr. DeBiccari worked as a consultant to the aerospace
industry, specializing in the thermal and structural analysis of gas turbine
components and assemblies. He joined
the Edison Welding Institute in 1994 as a senior research associate, and was
involved in manufacturing research programs on a variety of topics, including
novel and emerging joining processes, distortion control methods, and
residual stress mitigation techniques.
He began working for Pratt & Whitney in 1996 as a member of the
materials joining group, and since then has also held positions in
Manufacturing Systems, Repair Development Engineering, and currently works as
a staff engineer in Materials and Process Engineering. In his current position, Dr. DeBiccari is responsible for investigating new material
processing technologies and their potential application to Pratt &
Whitney products. He is the author of
over one dozen technical publications, and serves as a principal reviewer for
the Welding Journal. COCKTAILS................................................................................................ 5:30
pm DINNER........................................................................................................ 6:30
pm Chicken Francese, stuffed
sole, steak special of the night.................................................. $25.00 Retirees......................................................................................................................................... $20.00 Full-Time Students..................................................................................................................... $10.00 SPEAKER..................................................................................................... 7:30
pm ............................................................................................................................................ FIRM RESERVATIONS MUST BE RECEIVED ON OR BEFORE TUESDAY February 14,
2006. Please state meal choice when
making reservations. Members unable to
attend the dinner are cordially invited to attend the presentation at 7:30 pm. ............................................................................................................................................ Telephone reservations with meal
choice may be called into the Chapter Secretary (Jim Michel) at 203-378-6589
or email: jameshmichel@optonline.net Directions to restaurant: http://www.ConniesFamilyRestaurant.com
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