Next prepare and upload to a 3 pages by doing research on the internet on

* (1-2) Why is surface modification is needed for engineering components.

* (4) Description of various processes used for surface modification e.g. shot peening, coatings, laser shock blasting etc. Compare the processes as much as possible. Specify based on website data the coating advantages, thickness, characteristics, disadvantages etc.

* (2) Give examples from firms in Ohio/USA doing work in modifying surfaces of engineering automotive, biomedical components