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Original Date: 01/27/1997
Revision Date: 01/18/2007
Information : Precision Systems and Precision Manufacturing Technology
Lawrence Livermore National Laboratory’s (LLNL’s) Precision Systems and Manufacturing Group (PS&M) is a developer of precision systems comprising precision machines and precision manufacturing processes. The ability to develop a material removal process, as well as to design and build the machinery that embodies a process, has led to significant contributions to the state of technology in single point diamond turning and in the grinding of brittle materials. The PS&M specializes in applications in precision machine tools, test equipment, gauging equipment, optical systems, and metrology systems. The PS&M provides the capability to develop these and other precision equipment needs for LLNL and external customers. The Group maintains expertise in computer aided analytical tools such as 2-D and 3-D finite element modeling for structural and thermal analysis. The Group also maintains expertise in the following technologies: laser interferometry; precision machine control; dimensional workpiece metrology; surface metrology; machine tool metrology; alignment of structures and systems; error analysis; and sensors and actuators for process monitoring. Together these technologies add up to the ability to design, build, and bring on-line a precision manufacturing capability.
The PS&M’s facility includes 10,000 square feet of temperature-controlled laboratory space and houses about a dozen precision machine tools. These include diamond turning and grinding machines with capabilities ranging from the 84-inch swing of Diamond Turning Machine #3 to the 20 angstrom-rms finishes of the Precision Engineering Research Lathe; general and specialized Coordinate Measuring Machines; and ancillary equipment to support such a state-of-the-art facility. The Group also maintains a collection of dimensional metrology equipment including phase- shifting interferometers up to 12 inches in diameter, interferometric microscopes, various stylus instruments, and distance measuring interferometers.
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