Materials and Processes Selection Assignment
Members: Lim Yu Rong ()
Buwanguzi Yusuf (4328752)
Cantona Chhoa Hua Fung (4317262)
Eric Ting Wei Xiang (4316614)
Date of Submission: 19th May 2014
Table of content
Content Pages
Sports and recreation equipment selection
Selection 1: Bicycle frame Brief description Properties required Selected material: Carbon fibre Introduction Advantages and disadvantages compared to other materials
Sustainability issues
Processing technique Selection 2: Baseball bat Brief description Properties required Selected material: Aluminium Introduction Advantages and disadvantages compared to other materials Sustainability issues Processing technique
Sports and recreation equipment selection
Selection 1: Bicycle frame
Brief description
Bicycle frame is the core part of bicycle.
Properties required
1. Low density = light weight
2. High strength
3. High corrosion resistance
4. High toughness
5. High fatigue limit
6. Sustainable
Frame materials
Some of the materials that are used to make bicycle frames include Steel, Aluminium alloys, Titanium and Carbon fibre. Below is a brief description of Steel, Aluminium and Titanium in relation to bicycle frames. Thereafter is a more detailed study and comparison of each of the different properties of a bicycle frame under the candidate materials. This will provide the basis for choosing the best material for the job.
Steel –Steel is the most commonly used material in bike frames. They are strong, easy to work, and relatively inexpensive, but denser and thus generally heavier than many other structural materials. Steel frames are often built using various types of steel alloys including chromoly. Chromoly is light, strong steel. When it is butted and shaped to take off excess weight, it can deliver a fairly light frame that will last through years of hard use. Chromoly is responsive and offers good flex while
References: Bicycle frame http://www.rodbikes.com/articles/material-world.html http://en.wikipedia.org/wiki/Bicycle_frame http://bigshark.com/articles/which-frame-material-is-the-best-pg531.htm#. https://www.missionbicycle.com/about/news/4-22-13/oversimplified-steel-vs-aluminum Baseball bat http://www.baseball-bats.net/baseball-bats/baseball-bat-materials/index.html http://www.dixie.org/AssetFactory.aspx?did=608 http://m-5.eng.uml.edu/umlbrc/publications/Characterizing%20the%20Performance%20of%20Baseball%20Bats%20using%20Experimental%20and%20Finite%20Element%20Methods.pdf http://www.slideshare.net/mustijab/composite-baseball-bat-manufacturing-process