원문정보
초록
영어
As one of the most important parts of aeroengine, blisk has complex structure and its material is titanium alloy hard to machine. It results in some difficulties in modeling and NC programming. In this paper, from the perspective of application, the secondary development technology of UG/Open Grip is used to design and develop the CAD/CAM module of blisk after analyzing structure feature and milling process of blisk. Firstly, it completes parametric modeling of blisk by establishing CAD module through the optimization of the original data points in NUBRS curve fitting and node interpolation technology; secondly, the inner and outer tolerance algorithm are applied to calculate the cutting step, and the row spacing is determined based on constant scallop height. Besides, tool axis vector is defined. All of these things are done to complete the establishment of the CAM module and realize trajectory planning of semi-finish machining of the blisk. It greatly improves the efficiency of programming and machining in blisks; finally, the module of blisk designed is used to model and program in the machining experiments in five axis machining center to verify correctness and reliability of the system. The results show that this module greatly improves manufacturing efficiency of blisk.
목차
1. Introduction
2. The Design of CAD Module for Efficient Machining Blisk
2.1. The Application Design and Plan of the CAD/CAM Special Module
2.2. The Research on the Design and Method of CAD Module of the Blisk
3. The Design of CAM Module for Efficient Machining Blisk
3.1. The Plan of Structure Design of CAM Module of the Blisk
3.2. The Research on Design Method of CAM Module of the Blisk
4. The Implementation and Experimental Verification of Efficient Machining Blisk CAM Module
4.1. Special Steps of Building Blisk CAD Module
4.2. Special Steps of Building CAM Module of the Blisk
4.3. Experimental Verification of the Machining Module
5. Conclusions
References