TY - JOUR

T1 - Fabrication of piston pins made of a novel aluminium-alloyed UHC steel

AU - Behrens, Bernd-Arno

AU - Chugreev, Aleksandr

AU - Kazhai, Mohammad

AU - Yarcu, Delil

AU - Büdenbender, Christoph

AU - Relge, Roman

N1 - Funding information: Funding information This research and development project was funded by the German Federal Ministry of Education and Research (BMBF) within the Framework Concept “Research for Tomorrow’s Production” (funding number: 02PN2050 ff) and managed by the Project Management Agency Karlsruhe (PTKA). The authors are responsible for the contents of this publication.

PY - 2019/6/19

Y1 - 2019/6/19

N2 - The vehicle industry strives for weight reduction in order to reduce fuel consumption. This leads to the development of new steel grades that are enriched with light metals, such as aluminium. In addition to the reduction in density, this means that the properties of conventional steels need to be at least replaced or ideally even surpassed. In the present work, a novel material, ultra-high-carbon (UHC) lightweight steel, was investigated for its forming behaviour. In addition to extrusion tests for this material, comprehensive material characterisation was carried out. The temperature, strain and strain rate–dependent flow behaviour were determined. Furthermore, ring compression tests were performed to identify the temperature and tool-workpiece-dependent friction factors. The findings served as a basis for a material model to perform numerical simulations in order to develop the tool for the extrusion of piston pins. The extrusion took place at 1050–1150 °C in a screw press. This work provides a basis for the forming of hard and solid steels that are difficult to process and can be applied to metals of similar properties.

AB - The vehicle industry strives for weight reduction in order to reduce fuel consumption. This leads to the development of new steel grades that are enriched with light metals, such as aluminium. In addition to the reduction in density, this means that the properties of conventional steels need to be at least replaced or ideally even surpassed. In the present work, a novel material, ultra-high-carbon (UHC) lightweight steel, was investigated for its forming behaviour. In addition to extrusion tests for this material, comprehensive material characterisation was carried out. The temperature, strain and strain rate–dependent flow behaviour were determined. Furthermore, ring compression tests were performed to identify the temperature and tool-workpiece-dependent friction factors. The findings served as a basis for a material model to perform numerical simulations in order to develop the tool for the extrusion of piston pins. The extrusion took place at 1050–1150 °C in a screw press. This work provides a basis for the forming of hard and solid steels that are difficult to process and can be applied to metals of similar properties.

KW - Aluminium-alloyed UHC steel

KW - Backward can extrusion/cup backward extrusion

KW - FE simulation

KW - Hot forging

KW - Material characterisation

KW - Piston pin

UR - http://www.scopus.com/inward/record.url?scp=85062605783&partnerID=8YFLogxK

U2 - 10.1007/s00170-019-03473-z

DO - 10.1007/s00170-019-03473-z

M3 - Article

AN - SCOPUS:85062605783

VL - 102

SP - 3781

EP - 3789

JO - International Journal of Advanced Manufacturing Technology

JF - International Journal of Advanced Manufacturing Technology

SN - 0268-3768

IS - 9-12

ER -