ISO 4386-1:2012 PDF

Scope: This part of ISO 4386 specifies an ultrasonic testing method for determining bond defects between the bearing metal and the backing. The test can be performed on metallic multilayer plain bearings consisting of steel- or copper-based material backings lined with bearing metal based on lead and tin, with layer thicknesses greater than or equal to 0,5 mm. For cast iron backings, this part of ISO 4386 is applicable with restrictions. The ultrasonic signal reflected by the bond interface between the bearing metal and the backing is used to determine bonding defects. Ultrasonic testing is not possible on edge zones of sliding surface, flange sides, joint areas, oil holes, grooves, etc. in a range of less than half the diameter of the ultrasonic probe because of undefined reflections. The same applies to bearings with dovetail keying grooves at the bond. Ultrasonic testing of bond does not apply along the edges of the dovetails. Evaluation of the bond on the visible transition from the backing to the bearing metal (on end faces or joint faces) is only practicable by the penetrant testing method specified in ISO 4386-3. This part of ISO 4386 only describes in detail the pulse-echo method. Within the meaning of this part quantitative determination of the bond strength. The ultrasonic bond test differs only between bond and bond defect.

ISO 4386-1:2012 history

2019 ISO 4386-1:2019 Plain bearings — Metallic multilayer plain bearings — Part 1: Non-destructive ultrasonic testing of bond of thickness greater than or equal to 0,5 mm
2012 ISO 4386-1:2012 Plain bearings - Metallic multilayer plain bearings - Part 1: Non-destructive ultrasonic testing of bond of thickness 0,5 mm
1992 ISO 4386-1:1992 Plain bearings; metallic multilayer plain bearings; part 1: non-destructive ultrasonic testing of bond
1982 ISO 4386-1:1982 Plain bearings — Metallic multilayer plain bearings — Part 1: Non-destructive ultrasonic testing of bond for bearing metal layer thicknesses equal to or greater than 2 mm