Optimization of Tube Hydroforming Process by Using Fuzzy Expert System

Abstract

In the tube hydroforming process, a tube is placed into the die cavity and the ends of the tube are sealed by fixing the axial cylinder piston into the ends. Then the tube is pressurized with a hydraulic fluid and simultaneously the axial cylinders move to feed the material into the expansion zone. In this study, the empirical and the quantitative relationship between process parameters and hydroformabillity are analyzed by fuzzy rules. Fuzzy expert system is an advanced expert system which uses fuzzy rule and approximate reasoning. Many process parameters are converted to the quantitative relationship by use of approximate reasoning of fuzzy expert system.

Development of a ball groove measuring system for forged outer race constant velocity (CV) joints

“…Our study focuses on developing an objective and reliable measuring system for a real time testing [5]. In such context, a proposed system should be (1) accurate so it can be used to reduce a cause of defect, (2) simple and easy to acquire data for a real time testing.…”

Web Based Shape Inspection System for the Forging Products Having Complicated Shapes

“…Therefore, shape inspection system is developed in this study to measure and analyze the web based real time dimensional accuracy of CV joint outer race [3]. In addition, efficient method to predict possible dimensional error of CV joint from given process parameter has been developed by using a fuzzy expert system [4]. The measured dimensional profiles of developed system also show good agreement with those from a Zeiss 3D measurement scanner.…”