Component comprises a basic material (10), a rip-stop layer (12) having a thickness of at least 3 mu m and a partially anodized aluminum layer (14). An independent claim is also included for a process for the production of a surface on a component.

An insert (12) is prepared and set into a piston main body (PMB) made from an aluminum cast alloy. The insert is then partly recast with piston material and its immediate surroundings (14) are recast in the PMB. The material of the insert has a higher prop...

The piston for an internal combustion engine has at least in areas a coating of ductile material with a thickness of 200 microns or less. The coating consists of a technically high-grade aluminum, and the coating may be applied galvanically. The piston has...

Piston has a bushing made from an austenitic cast iron or austenitic steel for receiving a piston bolt. An independent claim is also included for a process for the production of a piston for an I.C. engine.

The method involves forming at least one comparatively narrow groove (14) in the area of the upper and/or lower flank of the piston ring groove and filling the narrow groove with a wear-resistant material (16). The piston ring groove is then machined so th...