Now showing items 1-6 of 6
Sprayed Metal Shells for Tooling: Improving the Mechanical Properties
Tbis work describes methods to improve the quality of the metal resulting from thermal spray deposition, including both the mechanical and metallurgical behavior. The engineering context is the production of sprayed metal ...
A Simple Polymer Shrinkage Model Applied to Stereolithography
A simple polymer shrinkage model has been successfully applied to the stereolithography process. The shrinkage model, which computes specific volume changes from the degree of conversion of monomer to polymer, incorporates ...
Ultraviolet Curing of Highly Loaded Ceramic Suspensions for Stereolithography of Ceramics
Ceramic green bodies can be created using stereolithography methods where a ceramic slip consisting of 45-55 vlo ceramic powder is dispersed within an ultraviolet-curable aqueous acrylamide solution. Two ceramic materials ...
Reducing Warpage In Sterelothiography Through Novel Draw Styles
A consistent problem with stereolithography has been part distortion and dimensional inaccuracies caused by resin shrinkage. Resin shrinkage and, thus, warpage occurs during the build process and during the postcure. ...
Temperature-Controlled Selective Laser Sintering
A control scheme for laser sintering has been developed which maintains sintering powder at constant temperature by actively controlling laser power. It uses a sensor to monitor the temperature of powder at the focus of ...
Studies in Stereolithography : Influence of Process Parameters on Curl Distortion in Photopolymer Models
To make the stereolithography process more useful in the manufacturing industry, the dimensional accuracy of the parts it creates should be very high. But due to the nature of the polymerization process and the mechanism ...