High-temperature Alloy Components By Laser Rapid Prototyping Technology Research

The research of metal powder laser sintering is a hot topic in rapid prototyping technology area. In this paper, the principle of rapid prototyping technology has been introduced, and its general survey on international researching and application of producing metal molds or parts has been presented. Under the background of correlative research project, the method of Selective Laser Sintering has been used in the researching work. Polymer-coated high-temperature alloy powder have been first developed successfully in our nation. The laser sintering and post-treatment process of high-temperature alloy parts have been systematically studied, which lay the foundation for its engineering application.The researching work include three aspects:1) After selecting primary material system, the polymer coating process were optimized. The polymer-coated high-temperature alloy powder has been developed on the basis.2) Based on sintering and orthogonal experiments, the influence of the prototyping elements on prototyping properties have been initially studied, and the optimal prototyping parameters of this material has been obtained finally.3) Post-treatment process experiments were conducted, the flowing process of post-treatment has been put forward. A qualified part were prepared finally.