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Manufacturing and Production: Part 8
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Drop forging

Ashish Futtan
MTECH IIT Bombay|Quora Top Writer for GATE Mechanical 2019|Cracked IIT (ISM) Dhanbad,IIT DELHI|3 times GATE qualified| Singer|

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awesome sir ...🌷🌷
  1. manufacturing and production


  3. IES - 2003 Consider the following steps in forging a connecting rod from the bar stock: 1. Blocking 2. Trimming 3. Finishing 4. Edging Select the correct sequence of these operations using the codes given below: Codes: (a) 1-2-3-4 (b) 2-3-4-1 (c) 3-4-1-2 (d) 4-1-3-2

  4. lAS - 2001 Match List I (Forging operations) with List I (Descriptions) and select the correct answer using the codes given below the Lists: List I List II A. Flattening 1. Thickness is reduced continuously at different sections along length B. Drawing 2. Metal is displaced away from centre, reducing thickness in middle and increasing length C. Fullering 3. Rod is pulled through a die D. Wire drawing 4. Pressure a workpiece between two flat dies Codes:A B C DA BC D (a) 3 2 1 4 (b) 412 3 (c) 3 1 2 4 (d) 4 21 3

  5. lES - 1994, ISRO-2010 In drop forging, forging is done by dropping (a) The work piece at high velocity (b) The hammer at high velocity. (c) The die with hammer at high velocity (d) a weight on hammer to produce the requisite impact.

  6. IAS-2000 Drop forging is used to produce (a) Small components (b) Large components (c) Identical Components in large numbers (d) Medium-size components

  7. IES 2011 Consider the following statements: 1. Any metal will require some time to undergo complete plastic deformation particularly if deforming metal has to fill cavities and corners of small radii 2. For larger work piece of metals that can retain toughness at forging temperature it is preferable to use forge press rather than forge hammer. (a) 1 and 2 are correct and 2 is the reason for 1 (b) 1 and 2 are correct and 1 is the reason for 2 (c) 1 and 2 are correct but unrelated (d) 1 only correct

  8. IES - 2005 Match List I (Type of Forging) with List II (Operation) and select the correct answer using the code given below the Lists: List I List II A. Drop Forging 1. Metal is gripped in the dies and pressure is applied on the heated end B. Press Forging 2. Squeezing action C. Upset Forging 3. Metal is placed between rollers and pushed D. Roll Forging 4. Repeated hammer blows A B C DA B C D (a) 4 1 2 3 (b) 3 2 1 4 (c) 4 2 1 3 (d) 3 1 2 4

  9. IES-2013 Statement (I): In high velocity forming process, high energy car be transferred to metal with relatively small weight. Statement (II): The kinetic energy is the function of mass and velocity. (a) Both Statement (I) and Statement (Il) are individually true and (b) Both Statement (l) and Statement (Il) are individually true but (c) Statement (I) is true but Statement (II) is false Statement (II) is the correct explanation of Statement (I) Statement (II) is not the correct explanation of Statement (I) (d) Statement (I) is false but Statement (II) is true

  10. IES - 2008 The balls of the ball bearings are manufactured from steel rods. The operations involved are: 1. Ground 2. Hot forged on hammers 3. Heat treated 4. Polished What is the correct sequence of the above operations from start? (a) 3-2-4-1 (b) 3-2-1-4 (c) 2-3-1-4 (d) 2-3-4-1