General understanding: 1. Why are metals so important in industry? 2. What are the main...

Question

General understanding: 1. Why are metals so important in industry? 2. What are the main metalworking processes? 3. Why are metals worked mostly hot? 4. What properties does cold working give to metals? 5. What is rolling? Where is it used? 6. What is extrusion? What shapes can be obtained after extrusion? 7. What are the types of extrusion?

Comments

Помогите пожалуйста, нужно срочно

Answer 1

Ответ:

1. Metals are important for industry because they can be easily deformed into useful shapes.

2. The main metalworking processes are rolling, extrusion, drawing, forging, sheet-metal forming.

3. Metals are worked mostly hot because new strain-free grains will gwow instead of deformed grains.

4. Cool working gives such properties as hardening metals and making the part stronger

5. Rolling is the most common metalworking process which is used during the work with aluminium, steel and copper

6. Extraction is pushing a billet to flow through the orifice of a die.  

7. The type of extraction is back extraction

Объяснение: