Abstract
Keywords - Thermal Spraying, Plasma Transferred Wire Arc Process, Engine Block Remanufacturing, Cylinder Running Surface
Service-exposed engine blocks often exhibit unacceptable wear of the cylinder running surfaces. Depending on the engine architecture engine blocks can be remanufactured by using oversize pistons or by re-linering. However, modern engines sometimes do not permit these solutions due to the remaining bore bridge dimensions.
For these modern engines PTWA spray repair process using conventional 0.82 % C-Steel is used for remanufacturing. In addition, this repair process can also result in cost savings as compared to standard remanufacturing process on existing cast iron and aluminium engines. Initial results for remanufacturing cast iron blocks will be presented.