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    5111 April-2019

    Uploaded by

    75Ujwal TD
    This document contains questions for an exam on press tool technology. It is divided into three parts: Part A contains 10 multiple choice questions worth 2 marks each. Part B contains 5 out of 7 short answer questions worth 6 marks each. The questions cover topics like cutting operations, bending calculations, definitions and descriptions of forming processes. Part C contains two full questions from each of the four units of study. Candidates must answer one full question from each unit worth 15 marks each. The questions cover topics on press working equipment, types of pilots, bending and forming operations, and factors affecting drawing operations.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    5111 April-2019

    Uploaded by

    75Ujwal TD
    18 views2 pages
    This document contains questions for an exam on press tool technology. It is divided into three parts: Part A contains 10 multiple choice questions worth 2 marks each. Part B contains 5 out of 7 short answer questions worth 6 marks each. The questions cover topics like cutting operations, bending calculations, definitions and descriptions of forming processes. Part C contains two full questions from each of the four units of study. Candidates must answer one full question from each unit worth 15 marks each. The questions cover topics on press working equipment, types of pilots, bending and forming operations, and factors affecting drawing operations.

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    QUESTION

    Original Title

    5111 APRIL-2019 (1)

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    This document contains questions for an exam on press tool technology. It is divided into three parts: Part A contains 10 multiple choice questions worth 2 marks each. Part B contains 5 out of 7 short answer questions worth 6 marks each. The questions cover topics like cutting operations, bending calculations, definitions and descriptions of forming processes. Part C contains two full questions from each of the four units of study. Candidates must answer one full question from each unit worth 15 marks each. The questions cover topics on press working equipment, types of pilots, bending and forming operations, and factors affecting drawing operations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    18 views2 pages

    5111 April-2019

    Uploaded by

    75Ujwal TD
    This document contains questions for an exam on press tool technology. It is divided into three parts: Part A contains 10 multiple choice questions worth 2 marks each. Part B contains 5 out of 7 short answer questions worth 6 marks each. The questions cover topics like cutting operations, bending calculations, definitions and descriptions of forming processes. Part C contains two full questions from each of the four units of study. Candidates must answer one full question from each unit worth 15 marks each. The questions cover topics on press working equipment, types of pilots, bending and forming operations, and factors affecting drawing operations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
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    \

    PART_C
    \
    [Maximum Marks: 60]
    [Answer one full question from each unit. Each full question carries 15 marks]

    UMT-I
    Itr. (a) Explain about press working equipment with a neat sketch. 8

    (b) Differentiate between compound die and combination die.

    IV. (a) Explain the method to reduce the cutting force during the press working 8

    E
    (b) Sketch and explain single row and double row sfip layout. 7

    EG
    UMT-tr

    LL
    V. (a) Discuss about diflerent types ofpilots with a neat sketcb.
    8

    CO
    (b) With a neat sketch explain knockout and shedder mechanisrn, 7

    OR
    VI. (a) Two holes, one 5 cm square and another
    C
    8 cm diameter are to be cut in a metallic sheet
    I
    of 3mm
    HN
    thick. If shear strength ofmaterial is 3000 kg/cm2, determine

    (0 (il)
    EC

    Cutting force Stripping force 8

    (b) Explain with a neat sketch about spring loaded stripper. 7


    YT

    UNIT = III
    L
    PO

    VII. (a) Describe edge bending and V - bending operation with simple sketches. 8

    (b) List out the advantages and limitations of compound tool. 7


    N

    OR
    DI

    VIII. (a) Explain working ofprogressive die with a neat sketch.


    A'

    (b) Write a short note on spring back phenomenon.


    M

    TINIT - IV
    D(. (a) Discuss the factors affecting drawing operation.

    ft) Write short note on frne blanking operation.


    OR

    X. (a) Define the terms, draw ratio; thickness ratio and drawing ratio in press tools 8

    (b) Explain about materials suitable for fine blanking 7


    ?'tl\l Ar
    j
    :' :

    TED (15) slr1


    Q;ffiat!,.P
    rr6rre!er v
    (Revision -2015)

    DIPLOMA EXAMINATION IN ENGINEERING/TBCIINOLOGY/


    MAI{AGEMENTiCOMMERCIAL PRACTICE' APRIL - 2OI9
    PRESS TOOL TECHNOLOGY

    [Time: 3 Hours]
    [Maximum Marks: 100]

    E
    PART-A

    EG
    [Maximum Marks: 101
    (Answer all questions in one or two s€ntences' Each question canies 2 marks)

    LL
    CO
    I 1. Definc Punching operation.

    2. What is direct pilot.


    C
    3. What are the important points to be considered during bending?
    I
    HN
    4. Name the differetrt types of commonly used forming dies.

    5. State shut height of a die. [5x2:10]


    EC

    PART_B
    YT

    [Maximum Marks: 30]


    L
    PO

    ll. Atswer anlt Jive of folLo'wing questions. Each question csries 6 marlc

    l. Explain with a neat sketch cut off and parting off operation.
    N
    DI

    2. Compare piercing and blanking operation.

    3. Describe the different types ofpower presses used in press tool operation'
    A'

    4. Calculate the bending force for a 450 bend in aluminium blank. The following daia is given:
    M

    Blank thickness : / mrn; Bend length: 1000 mm; Die opening = 8 x metal thickness
    Ultimite tensile streneth : 455 N/mm2.

    5. DeFure the following.

    (i) Bend allowance (ii) Angle ofbend (iii) Set back

    6. Describe embossing type of forming operation in press tools.

    7. Calculate blank diameter to make a steel shell having 100 mm outer diameter and 50 mm height
    with 3 mm thick sheet metal.
    [5x6:30]

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