A5013647034- Metal and Thin Film Mechanics
- Metal Alloys Wear and Properties
- Surface Treatment and Residual Stress
- Metallurgy and Material Forming
- Metal Forming Simulation Techniques
- Advanced materials and composites
- Microstructure and mechanical properties
- Aluminum Alloy Microstructure Properties
- Diamond and Carbon-based Materials Research
- Titanium Alloys Microstructure and Properties
Leibniz University Hannover
2013-2019
Institut für Umformtechnik (Germany)
2016
Tools used in hot forging operations are subjected to high wear during processing due complex load conditions with temperatures and mechanical loads. The resulting abridged service lifetime of the dies highly restricts cost-effectiveness production process. Several investigations indicate that condition tool topography several cycles affects formation distinctly. Thus, an enhancement order reduce tribologically caused is expected increase resistance. Within this investigation appropriate...
Hot forging is an effective production method producing safety relevant parts with excellent mechanical properties. The economic efficiency directly depends on the occurring wear of tools, which limits service lifetime. Several approaches presenting research group aim at minimizing caused by interacting and thermal loads using enhanced nitriding technology. Thus, modifying surface zone layer it possible to create a resistance against softening provoking plastic deformation pronounced...
Dies in hot forging operations are subjected to a complex load combination consisting of thermal, mechanical and tribological loads. Therefore, dies exhibit short service life comparison other forming operations. An extension tool represents an effective way increasing the efficiency since represent large share process chain's production costs. Since there is no prior knowledge ideal die surface properties, shot peening treatment was applied order create enhanced properties machined surfaces.
In this paper a high loaded hot forging die, which is oriented towards an industrial process, developed with assistance of finite element analysis. serial tests and process accompanying analysis methods the designed die geometry gets investigated concerning occurring wear mechanisms. Within investigation it could be shown, that calculated results condition are corresponding to experiments. Abrasion, plastic deformation mechanical cracking detected. The variety mechanisms on allows promising...