Reverse Engineering Techniques - Material and Substance Investigation Part 2
Introduction
When using reverse engineering to repair old machinery and restore parts, one of the biggest headaches is determining the material of the parts.
If the part is made from the same material as the damaged part, some people may think that since the original part is still available, it would be easy to distinguish by measuring it with a measuring tool or by looking at the color, but this is not always the case.
In this column, we will discuss methods for determining materials, rather than the issue of identifying materials that we discussed last time.
How to determine the material of a part?
1. Check with magnetic force
When checking the material of a damaged part during reverse engineering, the first thing we do is distinguish it using a magnet.
This is a very simple measurement method that does not take much time, and since most non-ferrous metals do not stick to a magnet, it is often used as a first step in determining the material.
2. Check the weight
Each material has a specific gravity that is determined by its material.
It is difficult for complex shapes, but for parts that are made up of a combination of box-shaped and cylindrical shapes, where the volume is easy to calculate,
The specific gravity of the material used can be calculated from the measured weight and volume, allowing you to narrow down the material you are looking for.
3. Decide based on the intended use and environment
Depending on the intended use and environment of the reverse engineered part, we may choose a material that is more environmentally friendly rather than choosing the exact same material as the previous part.
In particular, if the original part was a casting with a cast surface, it would need to be manufactured from a mold, which would be very costly and time-consuming.
Therefore, we consider the environment in which the parts are usually placed and their intended use before selecting the appropriate material.
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