Research for Finish Selection

Background:

When parts are done being manufactured, they should have the shape and dimensions that correspond to the specifications set out in the drawing. Commonly used materials in manufacturing are weak to wear and corrosion after being manufactured (steel and aluminum).

Surface finishes are a collection of industrial processes that can alter the surface of a material to achieve a desired property, this can include increasing the hardness, corrosion resistance, change surface friction, chemical resistance, modify electrical conductivity etc.

Therefore, it is desirable for us as engineering students to understand the differences and tradeoffs when selecting a surface finish.

Task:

Create a confluence page/google doc/google sheet that details the pros and cons (ideally quantitatively) of each surface finish. Some important finishes for you to take a look at are:

• Anodic Oxidization (Anodizing)

• Electroplating (Chrome Plating)

• Hot Dipping (Galvanizing)

• Painting

• Black Oxide

Less importantly:

• Others? (only include if you think it is relevant or frequently used)

• Thermal Spraying

• Electroless Plating

• Chemical treatment

• Vacuum Plating

Some important properties for us in mechanical engineering:

• Cost

• Applicability (what metals can you use this surface finishing process on?)

• Hardness

• Corrosion/chemical resistance

• Whatever else you would like to add

Note that you may not be able to find information for each of these categories and that’s ok. Just leave it blank or N/A.

Results: