Types of Forging MCQ Quiz in தமிழ் - Objective Question with Answer for Types of Forging - இலவச PDF ஐப் பதிவிறக்கவும்
Last updated on Apr 3, 2025
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Types of Forging Question 1:
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
A. Wrinkling
B. Centre burst
C. Barreling
D. Cold shut
List-II
1. Upsetting
2. Deep drawing
3. Extrusion
4. Closed die forging
Answer (Detailed Solution Below)
Types of Forging Question 1 Detailed Solution
Wrinkling: In drawing operation, An in sufficient blank holder pressure causes wrinkles to develop on the flange, which may also extend to the wall of the cup.
Centre burst: Centre burst or chevron defect in extrusion are attributed to a state of hydrostatic tensile stress at the centre line in the deformation zone in the die. This tensile stress at centre causes a crack known as centre burst.
Upset forging: It involves increasing the diameter of a material by compressing its length. Due to barelling effect, there is inhomogeneous deformation.
Cold Shut or fold:A small crack at the corners and at right angles to the forged surface. It occurs in closed die forging. It is due to improper design of due.