Manufacturing Industries Interview Questions & Answers

  1. Question 1. What Is A Tool ?

    Answer :

    Anything which is necessary to make a product is called tools.

  2. Question 2. What Are The Classification Of Tools ?

    Answer :

    Press tools, Moulds, Jigs and fixtures, Cutting and assembly tools ,gauges and measuring instruments.

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  4. Question 3. What Is A Press Tool ?

    Answer :

    Press tool is a custom built tool in which we make sheet components that not readily available in the market.

  5. Question 4. What Do You Mean By Stampings?

    Answer :

    The sheet metal which makes with the help of press tool is called stampings.

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  7. Question 5. Name The Different Types Of Rolling ?

    Answer :

    Hot rolling, cold rolling.

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  9. Question 6. What Is Stock Materials ?

    Answer :

    Sheet metal from which stampings made is called stock material.

  10. Question 7. What Do You Mean Blanking ?

    Answer :

    In this operation, cut out material or slug will be the component.

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  12. Question 8. What Is Piercing?

    Answer :

    Process of making opening on sheet metal is called piercing. The cut out material will be waste.

  13. Question 9. Describe About A Side Cam Tool?

    Answer :

    Transforms vertical motion of the press ram into horizontal motion of the tool. It is used for side piercing.

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  15. Question 10. What Is Dinking ?

    Answer :

    Press tool cutting operation for soft materials like paper, leather, wood etc.

  16. Question 11. Describe Bending?

    Answer :

    Bending can be explained as shaping of material around straight line axis. Result is a new plane which is at an angle to the mother plane.

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  18. Question 12. What Is Forming ?

    Answer :

    Press tool non cutting operations in which material is formed into different shapes.

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  20. Question 13. What Is Compound Tool ?

    Answer :

    All cutting features of the component perform at one stroke of the ram.

  21. Question 14. Formula Of Cutting Force ?

    Answer :

    Fc = LSTmax

    L : Length of periphery to cut in mm.

    S : sheet thickness in mm

    TM ax : shear strength in n/mm^2

  22. Question 15. Briefly Explain The Capacity Of The Press ?

    Answer :

    Maximum amount of force can be given on the press . It is determined by KN or TONS.

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  24. Question 16. What Do You Meant By Cutting Clearance ?

    Answer :

    Gap between the side of the punch and corresponding side of the die in single side.

  25. Question 17. Calculation Of Cutting Clearance ?

    Answer :

    Sheet metal up to 3mm = C*S* root of (TMAX/10)

    Sheet metal more than 3 mm=(1.5*s) *(s-0.015)* root of (TM ax /10)

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  27. Question 18. What Is Called Land ?

    Answer :

    To avoid jamming of material inside the die ,we give straight portion of certain amount from the cutting edge. That is called land.

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  29. Question 19. What Are The Types Of Guide Plate Tool ?

    Answer :

    Open guide plate tool

    Stripper guide plate tool

  30. Question 20. Name The Types Of Cold Rolled Stock Materials Used ?

    Answer :

    Hard, Three quarter hard, Half hard, Quarter hard, Soft, Dead soft.

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  32. Question 21. What Are The Factors Effecting A Strip Layout ?

    Answer :

    Shape of the blank, production requirement, grain direction, burr side, stock material.

  33. Question 22. What Is Scrap Bridge ?

    Answer :

    Portion of the material remaining between two adjacent openings.

  34. Question 23. What Are The Types Of Strip Layout ?

    Answer :

    Single row layout, double row, gang dies and angular.

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  36. Question 24. The Ultimate Condition Of Buckling Force Is ……..?

    Answer :

    Buckling force =cutting force require for the operation =shear force on the punch

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  38. Question 25. What Is The Function Of Stopper ?

    Answer :

    Arrest the movement of the strip for one pitch length after each stroke.

  39. Question 26. Describe Registry Position ?

    Answer :

    Exact position where strip has to be established.

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  41. Question 27. Tunnel Width Formula ?

    Answer :

    X = w + f

    w = stock strip width at maximum tolerance

    f = desired horizontal feeding clearance

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  43. Question 28. What Is Pitch ?

    Answer :

    Distance between two consecutive operations.

  44. Question 29. What Is Strip Lay Out ?

    Answer :

    A layout which gives sequence of works and operations.

  45. Question 30. Quarter Hard Material ?

    Answer :

    Can bend 180 degree across and 90 degree along the grain direction.