Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2005-08-30
2005-08-30
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S123000, C700S182000
Reexamination Certificate
active
06937921
ABSTRACT:
A laser-aided, direct metal deposition (DMD) fabrication process is used for dies and molds having integrated sensors for monitoring and controlling characteristics that determine the quality of an article being processed. A method of fabricating such devices, as well as the “smart” devices themselves are disclosed. A system of manufacturing articles uses smart dies or smart molds so that various characteristics that affect the quality of the finished article are monitored during the die-forming or injection-molding process. The sensors, which are an integral part of the product-shaping devices, include simple thermocouples for measuring the temperature in various locations, as well as piezoelectric sensors and strain gages to monitor the build-up of stress and strain history caused by fluctuations in temperature during the fabrication process. This information is transmitted to a computer, where it is analyzed or compared with standardized histories obtained either through calibration experiments or through theoretical calculations.
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Gifford Krass Groh Sprinkle Anderson & Citkowski PC
Picard Leo
Precision Optical Manufacturing (POM)
Rapp Chad
LandOfFree
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