X-ray Inspection of Insert Molded Parts

Release: 2023-03-20, M.P. Update 2026-01-29, T.N.

Insert molding is a process that integrates metal components, such as terminals, into resin or rubber. While insert molded products may appear flawless externally, internal defects--such as metal-to-metal contact causing short circuits or voids in the resin weakening structural integrity--can occur. Therefore, non-destructive X-ray inspection is essential to verify internal quality. These components are widely used in electronic devices, including terminals, connectors, switches, gears, and enclosures.

Effective inspection requires a system capable of high tube voltage to penetrate dense metal components, combined with a high-resolution camera to detect minute shapes and voids within the resin.

The precision μB4600 benchtop X-ray inspection system offers flexible configurations for X-ray tube voltage and camera specifications to meet diverse requirements. For applications involving thick metal parts, a 100 kV tube voltage model is available for enhanced penetration. Additionally, an advanced configuration featuring a 60 kV tube and a 3-megapixel camera allows for high-resolution inspection over a wider field of view.

For 3D analysis, the precision μB4500 X-ray CT-compatible system features a metal artifact reduction function. This technology minimizes noise caused by metal components, enabling clear visualization of the resin-metal interface.