On the basis of the topics discussed in this chapter, do you think there is a direct correlation between friction and wear of materials? Explain. Explain why so many different types of metalworking...

On the basis of the topics discussed in this chapter, do you think there is a direct correlation between friction and wear of materials? Explain.

Explain why so many different types of metalworking fluids have been developed

Explain why surface treatment of manufactured products may be necessary. Give several examples.