Void Analysis and Shape Analysis of Inverter Component with Microfocus X-Ray CT System

User Benefits

- The size and distribution of voids, which can cause problems in inverter components, can be analyzed by non-destructive visualization of the internal structure. - The shape of the components can be efficiently evaluated by analyzing the wall thickness over a large area at once. - CT data can be converted into a mesh data format, which can be used for 3D printing.

Introduction

Inverters are an important component of electric vehicles, converting DC power from the battery into AC power to drive the motor. Optimizing the power control of the inverter improves the vehicle’s dynamic performance and fuel efficiency, so it is important to develop products that can pass large currents with low losses to improve vehicle performance. During inverter operation, a large current flows through the component parts, causing them to generate heat. For this reason, metal is used for inverter cases due to its good heat dissipation properties, perform quality control. and most of them are manufactured by the casting process, which has excellent productivity. However, the casting process has the disadvantage that voids tend to occur, which may cause strength loss and leakage. X-ray CT systems are used to visualize the presence and distribution of casting voids and to perform quality control. This article presents an example of observation and analysis of inverter components, mainly the case, using the inspeXio SMX- 225CT FPD HR Plus microfocus X-ray CT system.

September 12, 2023 GMT