Lecture 5

Question 1

what is shearing operations

Answer 1

guillotine

Question 2

fien blanking

Answer 2

v shaped lock to prevent distortion of material

Question 3

what is blanking

Answer 3

when sheared piece is usable piece

Question 4

what is piercing

Answer 4

when sheared piece is thrown away and left with hole

Question 5

what is deep drawing

Answer 5

“cup shaped”

Question 6

what is stretch forming

Answer 6

made for airplane panels etc

Question 7

what is peen forming

Answer 7

shot with small ball bearing like material - increases yielding on the surface and indentations are made

Question 8

advantages of superplastic forming

Answer 8

high ductility and forms complex shapes in one piece

Question 9

disadvantages of superplastic forming

Answer 9

can be slow to form

Question 10

bulging

Answer 10

split pipes

Question 11

rubber forming

Answer 11

shoe soles

Question 12

hydroforming

Answer 12

female die filled with pressurised water

allows for more complex shapes and deeper draw

Question 13

electroforming

Answer 13

charge detonated - shock waves force material into die cavity