Unit 4.3 Shaping and joining materials
Page 205


10. Complete the map with the correct words.

FORMING
In the process of forming metal sheets are 1. or deformed to geometric shape through mechanical 2. .

Drawing → stretching metal through series of 3. of decreasing size to produce flexible metal 4. .

5. metal forming → shaping thin sheets of metal by applying pressure with 6. .
There are many types:
• cold 7. : sheet of metal passes between rollers → the higher the 8. , the harder the finished product
• bending: 9. applied to metal sheet → bend at 10. to form shape
• spinning: 11. metal sheet then rotating it very fast

12. forming → powders heated in 13. → solid workpiece (14. )
11.1 Answer the question: what happens to metal workpieces during the forming process? aperta
11.2 Answer the question: what does the drawing process consist of? aperta
11.3 Answer the question: what presses may be used in sheet forming? aperta
11.4 Answer the question: in the cold rolling process, how does pressure affect the hardness of the final product? aperta
11.5 Answer the question: how does the bending process deform the metal sheet? aperta
11.6 Answer the question: how can complex parts be made in the bending process? aperta
11.7 Answer the question: how does a metal sheet get the desired shape with the spinning method? aperta
11.8 Answer the question: what is sintering? aperta
12. Listen to the recording, then complete the table with the missing information.

Process: Drawing
Description: Flat 1. of metal is 2. or pulled
Materials: Steel, 3. glass
Products: Steel bars, flexible wires, 4. fibres

Process: Deep drawing
Description: Metal sheet is 5. deeper into a 6.
Materials: Metal, 7. materials
Products: Round forms, car 8.

Process: Forming
Description: Shapes thin 9. by applying 10. forces
Materials: Stainless steel, 11.
Products: 12. , cans, plane panels

Process: Spinning
Description: Metal 13. is rotated at 14. speed and shaped
Materials: Metal
Products: 15.