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

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 a...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2019-06, Vol.102 (9-12), p.3781-3789
Main Authors: Behrens, B.-A., Chugreev, A., Kazhai, M., Yarcu, D., Büdenbender, C., Relge, R.
Format: Article
Language:English
Subjects:
Alloying
Aluminum
CAE) and Design
Computer simulation
Computer-Aided Engineering (CAD
Engineering
Extruders
Forming
Fuel consumption
High carbon steels
Industrial and Production Engineering
Light metals
Mathematical models
Mechanical Engineering
Media Management
Original Article
Ring compression tests
Steel
Strain rate
Temperature dependence
Weight reduction
Workpieces
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Summary: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.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-019-03473-z