Work

Influence of Laser Reconditioning on Fatigue Properties of Crankshafts

Year: 2011

Type: article

Abstract: Expensive machine parts often are repaired by additive processes to limit costs and increase productivity. However, repairing marine diesel engine crankshafts for these aims is not yet approved by the classification societies since the influence on mechanical properties can neither be predicted nor has been investigated sufficiently. A method for testing the influence of laser cladding on fatigue properties of marine crankshafts is presented. Tests on flat specimen indicated a drop in fatigue strength in consequence of laser cladding. The number of bearable load cycles of cladded crankshaft segments at 100% fatigue strength calculated according to CIMAC standards dropped. Origins of cracks could be traced back to cladded areas as well as to crankshaft fillets.

Source: Physics Procedia

DOI: 10.1016/j.phpro.2011.03.063

Authors: Henry Koehler, Knut Partes, Thomas Seefeld, Frank Vollertsen

Institution: Bremen Institute for Applied Beam Technology

Language: English

Topic: Additive Manufacturing Materials and Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

Funder: Bundesministerium für Bildung und Forschung