30 hp - The Influence of Surface Texture on Press Fit Behaviour and Torsional Strength: A Parametric

30 hp – The Influence of Surface Texture on Press Fit Behaviour and Torsional Strength: A Parametric Study

Introduction

Scania is currently transforming from a traditional truck manufacturer into a comprehensive provider of sustainable transport solutions. Writing your thesis with us presents a unique opportunity to connect with Scania and cultivate future relationships. Many of our team members began their careers at Scania through their degree projects. Are you eager to be part of the shift towards sustainable transport? Join us in building a sustainable future together!

Background

Press fits, or interference fits, are critical components in engineering, used to assemble parts tightly without the need for additional fasteners. This method relies on the precise alignment and mechanical interaction between mating surfaces. The effectiveness of a press fit is significantly influenced by surface texture, which includes parameters such as roughness, waviness etc., Understanding the relationship between surface texture and press fit performance is essential for optimizing design, quality and manufacturing processes. Each roughness parameter contributes to the performance of press fits, highlighting the need for a deeper insight into how surface roughness affects both press-fit and torsional strength.

Objective

The objective of this parametric study is to systematically evaluate the impact of various surface texture parameters on press fit performance and torsional strength. This study aims to:

• Assess the Influence of Surface Texture: Investigate how different roughness parameters affect the mechanical performance of press fits
• Establish Empirical Correlations: Develop empirical correlations that relate specific surface texture characteristics to press fit performance metrics. These correlations will facilitate predictive modelling.

Scope of this thesis

Study aims to investigate the press fits through testing and to establish and verify empirical correlations. The tasks involved include:

• Conducting a literature review
• Developing a test matrix with surface parameters
• Establishing empirical correlations between surface texture and press forces
• Performing torsion tests to correlate surface texture with torsional strength
• Compiling the report

Prototyping center, along with test facilities and rigs, will be available for the verification process.

What We’re Looking For:

Education: Master’s program in Mechanical Engineering, Vehicular Engineering

Number of students: 1

Start date for the thesis work: January 2024

Estimated time required: 20 weeks

Contact persons and supervisors

Bharath Chanamolu; Design engineer; Conventional transmission;+46 76 291 9439; bharath.chanamolu@scania.com

Matilda Klett; Head of Shafts, Gears & Planetary; Transmission development; +46 70 086 9219; matilda.klett@scania.com

Application:
Your application must include a CV, personal letter and transcript of grades

A background check might be conducted for this position. We are conducting interviews continuously and may close the recruitment earlier than the date specified.