862-FORGING DIES DIE CASTING DIES & DIE MAINTENANCE –ANSWER KEY

PART-A

1.

2. Wear resisting alloy steel, straight carbon steel

3. Hot chamber process, cold chamber process

4.

5.

6.

7.

8. Cracks, laps, tears, pitting, coarse grain wrinkle, dents, underfilling,blow holes,cold shut,mismatching

PART-B

9.

10.

11 .a) hydraulic with toggles b) straight hydraulic c) mechanical with toggles

12.

13.

14.

15.

16.

PART-C

17. (A)

17. (B)

18 (A)

18 (b)

19 (A)

19 (b)

20 (a)

20 (b)

21 (a)

21 (b)

PREPARED BY

P.MURUGAPANDI

LECTURER (34132006)

413-ITE-DGL