A Study of Trapezoidal Thread for Thin-Wall Tube Application

Abstract

This article is aim to studied the trapezoidal thread for thin-wall tube application. The thin-wall tube in this studied have different inner diameter namely 117.4 (model 1), 116.4 (model 2) and 113.9 (model 3) mm respectively. In this studied, trapezoidal thread was study on 2D models by finite element method which was created according to DIN 103-1 (1977_04). After that, work piece was created to use in the experiment. The results from finite element studied found that, the damaged was not occur in 116.4 and 113.9 mm inner diameter of thin-wall tube because stress distribution was occur only inside surface of thin-wall tube and gradually reduce before to outside surface while the tress distribution in 117.4 mm inner diameter of thin-wall tube was occur from inside to outside surface which resulting to damaged to thin-wall tube. And the results from experiment shown that, the result from experiment was consistent with finite element studied.