Example of Observing Dissimilar Metal Material Joint Using a Microfocus X-Ray CT System

User Benefits

- X-ray CT imaging enables visualization of the internal structure of dissimilar metal material joint nondestructively. - The quality of the joining material can be evaluated by observing and analyzing the dispersion of small metal pieces and voids n the metal that occur during the joining operation.

Introduction

In order to reduce CO₂ emissions and make efficient use of resources, weight reduction of automobiles and aircraft has become an important issue. Against this backdrop, the use of multi-materials to reduce body weight is being promoted by replacing high-strength but heavy component parts with moderately strong but light components where the impact is small. In order to promote the use of multi-materials, it is necessary to evaluate various joining materials and to consider better combinations of materials and joining methods. X-ray CT observation is one of the techniques for evaluating joining materials. Using this technique, the three-dimensional internal structure of the object can be easily visualized nondestructively to observe internal defects in the joining material, and to observe and analyze the dispersion state of small metal particles generated during joining. Here, an example of observing and analyzing joining materials of aluminum alloy and carbon steel using inspeXio SMX -225 CT FPD HR Plus, the micro-focus X-ray CT system, is presented.

December 25, 2022 GMT