Master thesis - Machinability of Bainitic Steels
Volvo Business Services AB / Maskiningenjörsjobb / Göteborg
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hela Sverige Machinability of Bainitic steels - Master Thesis
The Volvo Group is a global leader in transportation solutions, from trucks and buses to construction equipment. With the heavy transport industry facing numerous challenges, we consider metallic materials a key facilitator in achieving Volvo Group's ambitious environmental objectives.
Volvo Group Materials Technology offers exceptional expertise in metallic materials. Our team comprises approximately 35 engineers and technical doctors specializing in materials science and related fields. We collaborate with engineers worldwide to develop innovative, sustainable transportation solutions for the future.
Background and aim
Forged steel is widely used in the automotive industry for manufacturing critical components such as gears, axle beams, steering arms, drive shafts, and connecting rods. QT (quenched and tempered) and AFP (precipitation hardening of ferrite-pearlite) steel are commonly used among different grades. Bainitic grade steel has recently gained popularity due to its exceptional strength-to-toughness ratio that can potentially replace QT and AFP steel for varied components and applications. This steel offers green manufacturing since it requires less heat treatment through controlled cooling, unlike QT steels. Additionally, its superior mechanical properties over AFP steels allow engineers to design lightweight structures that help reduce the overall CO2 footprint generated by an automotive vehicle. These steels' mechanical properties and microstructure are well researched, but it is essential to understand their machinability characteristics in detail to implement them into production successfully. Therefore, this thesis work aims to study the machinability of bainitic steels.
Description
Tool wear during machining processes significantly impacts the characteristics of machined surfaces, e.g., the state of residual stress and roughness, as well as the dimensional tolerances and process stability. Therefore, the bainitic steel's machinability must be analysed and optimised to use the material to its full capability. In this study, the student is expected to conduct turning tests and understand the basic tool wear behaviour, mechanisms, and challenges for machining the steel with bainitic microstructure.
When and where?
It is recommended to commence the thesis work in January 2024, with most of the work taking place at Chalmers University of Technology. A minor supplementary component may be completed at Volvo Materials Technology, Göteborg.
Preferences
We are searching for a student with a mechanical or materials engineering background, with a preference for those who specialize in Material Science.
Kindly note that due to GDPR, we will not accept applications via mail. Please use our career site
Så ansöker du Sista dag att ansöka är 2023-11-04
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Arbetsgivare Volvo Business Services AB (org.nr 556029-5197)
405 08 GÖTEBORG
Arbetsplats Volvo Group
Jobbnummer 8176321
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