Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Ultraviolet-based, large-area scanning system for photothermal processing of composite structures










Image Number 2 for United States Patent #6149856.

In making thermoset and photo-set polymer-matrix composite parts, curing is the key process step that transforms the molecular structure of the composite material, stabilizing it in the desired shape. This curing system applies carefully controlled ultraviolet (UV) radiation dosages, appropriately distributed over the entire surface of the composite part, thereby rapidly curing the material while enabling direct monitoring and control of the curing energy. Previous photo-curing methods have applied generalized radiation to a part with conventional UV lamps. We provide great benefits in cure depth, speed and process control by precisely controlling all parameters of UV dosage, by computed control, by markings on the part, or by dynamic feedback control from embedded sensors or non-contact sensors. This system can apply greater radiation dose to areas of increased quantities of resin, such as support ribs, and lesser radiation dose to areas of decreased quantities of resin. This method can be enhanced by using differing resins which respond to differing wavelengths, and also by controlled changes of radiation field size or duration. This curing system also enables temporary joining of parts by sufficient partial or controlled-area photo-setting, which may also be integrated with lay-up or winding operations. As a result, these partially cured parts can be handled safely through later stages of the manufacturing process, such as final photo-setting or baking operation in an oven or autoclave.








 
 
  Recently Added Patents
LO generation with deskewed input oscillator signal
Vehicle having power supply apparatus
Satellite communication network
Quinazoline compounds and their use in perfume compositions
Method for using a super-slippery thin layer characterized by the method for making same
Systems and methods for optimizing capital structure of a financial institution
Fractal method for detecting and filling data gaps within LiDAR data
  Randomly Featured Patents
Stringed instrument nut and stringed instrument
Installation device for slide assembly
Chain brake for chain saw
Films comprising biodegradable PHA copolymers
Process for preparing carboxylic acids
Application of HIPIMS to through silicon via metallization in three-dimensional wafer packaging
Optical pickup device
Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same
Method and apparatus for reducing code phase search space
Adhesive composition, film-like adhesive, adhesive sheet and semiconductor device