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Te Imp (Veena)

This document provides a list of important questions for an exam on tool engineering. It covers topics from several chapters including: 1. Introduction to tools, tool design, and tool engineering functions. 2. Cutting tools and tool holders, including types of materials and tool geometry. 3. Locating and clamping devices, including the 3-2-1 principle of location and different locator types. The questions range from short definitions and explanations to longer questions requiring diagrams and detailed descriptions. In total there are over 100 questions drawing from various aspects of tool engineering.

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Sidpara Deep
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© © All Rights Reserved
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Download as PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
81 views17 pages

Te Imp (Veena)

This document provides a list of important questions for an exam on tool engineering. It covers topics from several chapters including: 1. Introduction to tools, tool design, and tool engineering functions. 2. Cutting tools and tool holders, including types of materials and tool geometry. 3. Locating and clamping devices, including the 3-2-1 principle of location and different locator types. The questions range from short definitions and explanations to longer questions requiring diagrams and detailed descriptions. In total there are over 100 questions drawing from various aspects of tool engineering.

Uploaded by

Sidpara Deep
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 17

Jiteshsir’s Om Namah Shivay

Topic - Important Questions Subject – TOOL ENGINEERING Subject Code - 3361902


For Exam – Summer 2022 Chapters – 1 to 6 Diploma (Mech) – 6th Semester

CH 1 – INTRODUCTION:

 1.1 Concept, meaning and definition of Tool, Tool Design and Tool
Engineering:
1. Define Tool. (2 Marks, S-2020) – Solution Video 1

2. Define tool design. (2 Marks, S-2018) – Solution Video 1

3. State the basic step in tool design procedure and explain briefly at least one step. (4 Marks,
S-2020)

4. Define Tool and Tool engineering. (2 Marks, W-2018) – Solution Video 1


5. Define Tool Engineering. (2 Marks, S-2021) (2 Marks, W-2021) (2 Marks, W-2020) (2
Marks, S-2019) – Solution Video 1

6. List different section of tool engineering and explain their function. (3 Marks, W-2018)

7. “Tool engineering is a connecting link between product design and manufacturing”- justify
the statement. (3 Marks, W-2018)
8. Briefly explain the relationship of tool engineering with other departments in the industry,
(3 Marks, W-2019)

9. Give any four names of machine tools. (2 Marks, S-2020) – Solution Video 1

 1.2 Tools – Types, classification, features and applications:


10. Define Tool. State the types of tools along with at least two examples. (3 Marks, W-2019)

11. Explain characteristics of form tools. (3 Marks, S-2020)

 1.3 Tool Engineering Functions and Importance to enhance


productivity & quality:
12. Explain the functions of Tool Engineering. (3 Marks, S-2019) – Solution Video 3
13. List four functions of tool engineer. (2 Marks, S-2021) (2 Marks, S-2018) (2 Marks, W-2021)
– Solution Video 3

14. Write importance of tool engineering in modern industries. (4 Marks, S-2018)


15. What is the importance of tool engineering in modern industries? (3 Marks, S-2020)

16. Explain the common problems in tool engineering. (3 Marks, W-2021)


Jiteshsir’s Om Namah Shivay

17. Explain project method and group method used by tool engineering. (3 Marks, W-2021)

18. State the duties of tool engineer in industries. (3 Marks, S-2021) (3 Marks, S-2020) –
Solution Video 2
19. State duties and responsibilities of a tool engineer. (3 Marks, W-2019) – Solution Video 2
20. Explain responsibilities of tool engineer. (3 Marks, W-2020) – Solution Video 2

 1.4 Importance of Process Planning:


21. Define process planning. (2 Marks, S-2020)

22. Explain Importance of process planning in tool engineering. (3 Marks, W-2020)


23. Explain importance & functions of the Process planning. (3 Marks, S-2019)

24. Explain process planning and list documents used for process planning. (4 Marks, S-2018)

25. State the contents of process and tool plans. (3 Marks, S-2020)

26. What are the steps followed in procedure of process planning. (3 Marks, W-2021)

 1.5 Economy concept, meaning, importance and principles in tool


engineering:
27. State the meaning of Economy in tool engineering. Describe briefly the ways to achieve
economy. (3 Marks, W-2019)

28. Explain principle of motion economy by Habel and Kearful. (4 Marks, W-2021)
29. What are the principles of motion economy in tool engineering? Explain. (3 Marks, S-2021)

30. List the factors influencing tool economy and explain any two in brief. (4 Marks, S-2020)
31. List the factors influencing Tooling Economy. (3 Marks, W-2021) (3 Marks, S-2019)

 1.6 Universal acts and their elements of a manufacturing operation


with simple example:
32. Writes elements of universal Acts. (2 Marks, S-2020)
33. Enlist universal acts and their elements. (2 Marks, W-2019)
34. Explain Universal acts & their elements of a manufacturing operation with simple example.
(3 Marks, S-2019)
35. Write universal act and their elements. (2 Marks, S-2018)

36. Explain how economy can be achieved in fixed cost. (4 Marks, W-2017)
Jiteshsir’s Om Namah Shivay

CH 2 – CUTTING TOOLS & TOOL HOLDERS:

 2.1 Cutting tool materials – types, composition, properties and


applications:
1. Enlist cutting tool materials. (2 Marks, S-2020) (2 Marks, S-2019)
2. Name the various cutting tool material. (2 Marks, W-2021) (2 Marks, S-2018)
3. State various cutting tool materials. (2 Marks, S-2021)

4. Explain the importance of heat treatment in tool steels. (3 Marks, S-2021)

5. Explain tool steel alloys and their effects. (4 Marks, S-2021)


6. Write short note on high speed steel tool. (4 Marks, W-2017)
7. Write short note on HSS. (4 Marks, W-2020)

8. State the functions of vanadium and molybdenum as constituents of tool materials. (2


Marks, W-2019)
9. Why cobalt, chromium, and molybdenum metals are added in tool materials. (3 Marks, W-
2017)

10. Write short note on Ceramic carbide. (4 Marks, W-2020)

11. List the abnormal tool materials and briefly explain cubic boron nitride material. (3 Marks,
W-2018)

12. List the criteria of selection of tool material. (2 Marks, W-2018)

13. State desirable properties cutting tool material. (3 Marks, W-2020)


14. State any four desirable properties of a tool material. (2 Marks, W-2019)
15. State the properties of Cutting tool materials. (2 Marks, S-2019)
16. List the properties of cutting tool material. (4 Marks, S-2018)

17. State at least four tool materials along with composition, properties and applications. (4
Marks, W-2019)

18. Select appropriate tool material for (i) Hacksaw blade, (ii) Twist drill. (2 Marks, W-2020)

 2.2 Carbide inserts – Types, ISO designation and Applications:


19. State ISO designation and applications of various carbide inserts(4 Marks, W-2019)
20. Explain ISO designation of a CNC turning tool carbide insert. (3 Marks, S-2021)
21. Write types of carbide inserts with its application. (4 Marks, S-2018)

 Questions on Tool Geometry:


Jiteshsir’s Om Namah Shivay

22. Draw tool geometry of twist drill. (3 Marks, S-2020)


23. Draw tool geometry of a twist drill. (3 Marks, S-2018)
24. Draw drill tool geometry. (3 Marks, W-2020)

25. Draw tool geometry of milling cutter. (3 Marks, S-2020)


26. Draw tool geometry of plain milling cutter and show different angles. (3 Marks, W-2018)
27. Draw the geometry of plain milling cutter with important geometrical elements. (4 Marks,
W-2019)

28. Draw tool Geometry of a single point cutting tool. (3 Marks, S-2018)
29. Draw single point cutting tool geometry. (3 Marks, W-2020)
30. Draw three views of right hand single point cutting tool along with important geometrical
elements. (4 Marks, W-2019)

31. Define Nose radius. (2 Marks, W-2020)

 2.3 Resharpening methods of cutting tools:


32. Explain the resharpening method of Drill point. (3 Marks, S-2019)
33. Write steps of re sharpening for a twist drill. (4 Marks, S-2021)

 2.4 Tool holders for turning and Milling Carbide inserts:


34. Write names of various cutting tool holders. (2 Marks, S-2021)

 2.5 Tool holding and tool mounting systems for machine tools:

CH 3 – LOCATING AND CLAMPING DEVICES:

 3.1 Concept, meaning and definitions of location & clamping:


1. Define location System. (2 Marks, S-2018) (2 Marks, W-2021)
2. Define location system and its importance in the design of jigs and fixtures. (2 Marks, S-
2021)

3. Explain concept of clamping. (2 Marks, S-2020)

4. State meaning of location & clamping. (2 Marks, W-2020)


5. State the meaning of location & Clamping. (3 Marks, S-2019)

6. Differentiate between location and clamping with respect to jig and fixture. (3 Marks, W-
2018)

 3.2 Use of locating and clamping principles in day-to-day


supervision on shop-floor:
Jiteshsir’s Om Namah Shivay

 3.3 Degree of freedom – Concept and Importance:


7. What is degree of freedom? (2 Marks, W-2021)

 3.4 3-2-1 Principle of location:


8. Explain 3-2-1 location principle with the help of a neat sketch. (4 Marks, S-2021)
9. Explain 3-2-1 location principle. (4 Marks, W-2021)
10. Explain 3-2-1 principle of location. (4 Marks, W-2020) (4 Marks, S-2020) (4 Marks, S-2018)
(4 Marks, W-2018)
11. Explain with neat sketch, 3-2-1 principle of location. (4 Marks, W-2019)
12. Explain 3-2-1 principle of location with a neat sketch. (4 Marks, S-2019)

 3.5 Locators – Types, sketches with nomenclature, working and


applications:
13. Describe ways to locate various types of surfaces in jigs and fixture design. (4 Marks, W-
2019)

14. List types of Locators & Explain any one with neat sketch. (4 Marks, S-2019)
15. List the types of locators and state where they are used. (3 Marks, W-2018)
16. List locating devices, explain locating pins with sketch. (4 Marks, W-2017)

17. Explain diamond pin locator with neat sketch. (3 Marks, S-2020)

18. Explain Nest locator. (2 Marks, S-2019)

19. Explain with sketch V locators. (3 Marks, W-2021)


20. Explain V locator with neat sketch. (3 Marks, W-2020)
21. Explain Vee Locator with neat sketch. (4 Marks, S-2018)

22. State the function of locators. (2 Marks, W-2018)

 3.6 Fool proofing and Ejecting:


23. Explain fool proofing with sketch. (4 Marks, W-2021)
24. Explain fool proofing and ejecting with neat sketch. (3 Marks, W-2020)
25. Describe with neat sketches, ejecting and fool proofing. (4 Marks, W-2019)
26. Explain in brief: Fool proofing & ejecting devices. (2 Marks, S-2019)
27. Explain the principle of fool proofing and ejecting devices. (4 Marks, S-2018)
28. Explain related to Jigs & fixtures (i) Fool proofing (ii) Loading & Unloading. (4 Marks, W-
2018)

29. Draw a neat sketch of ejecting device used in jig and fixture and state its functions. (3
Marks, W-2018)
Jiteshsir’s Om Namah Shivay

 3.7 Clamping devices – Types, Sketches with nomenclature,


working and applications:
30. Name any four clamping devices. (2 Marks, W-2018)
31. State any four clamping devices. (2 Marks, S-2021)
32. Explain any one quick acting clamping device with neat sketch. (3 Marks, W-2020)
33. List types of clamping device and explain any one with neat sketch. (4 Marks, S-2020)
34. List types of Clamping devices & Explain any one with neat sketch (4 Marks, S-2019)

35. Describe with neat sketches various types of Strap clamps. (4 Marks, W-2019)

36. Draw the sketch of “C” clamp. (2 Marks, W-2017)

37. Explain any one Quick acting clamp with sketch. (4 Marks, S-2018)
38. Why should quick acting clamps be used in jig and fixture? (2 Marks, W-2017)
39. Name the quick acting clamps. Explain quick acting nut with sketch. (4 Marks, W-2017)

40. With neat sketch explain power clamp. (3 Marks, W-2018)

 EXERCISE:
41. State any six principles of location. (3 Marks, S-2018)

42. State any six principles of clamping. (3 Marks, S-2018)


43. State and briefly explain clamping principles. (4 Marks, S-2021)
44. Explain clamping principles. (4 Marks, W-2020)
45. State the rules to be followed to achieve the aim of clamping. (3 Marks, W-2021)

CH 4 – JIGS AND FIXTURES:

 4.1 Concept, Meaning, Differences & benefits of jigs and fixtures:


1. List the basic elements of jig and fixture. (2 Marks, W-2017)

2. Differentiate between jigs and fixtures (2 Marks, S-2021)

 4.2 Types, sketches with nomenclature, working & application of


jigs:
3. List various types of Jigs & state the application of each type. (3 Marks, S-2021) (3 Marks,
S-2019)
4. Name five different jigs. (2 Marks, W-2021)

5. State applications of Box Jig. (2 Marks, S-2018)


Jiteshsir’s Om Namah Shivay

6. State the applications of box jig and leaf jig. (2 Marks, S-2021)
7. With neat sketch explain box jig. (4 Marks, W-2018)
8. Explain box jig or simple leaf jig. (4 Marks, W-2021)

9. Explain template jig with figure. (3 Marks, W-2021)

10. Explain channel Jig with sketch. (4 Marks, W-2021) (3 Marks, W-2017)
11. Describe the procedure of designing channel jig. (4 Marks, W-2018)

12. Name the various jig and explain indexing jig. (3 Marks, S-2020)

13. Explain Turn over Jig with neat sketch. (4 Marks, S-2018)

 4.3 Types, sketches with nomenclature, working & application of


fixtures:
14. List various types of Fixtures & state the application of each type. (3 Marks, S-2021)
15. State different types of fixture and explain any one. (3 Marks, W-2020)
16. Name the various fixtures and explain any one in brief. (3 Marks, S-2020)
17. List the different types of Fixtures & sketch any one of them. (3 Marks, S-2019)

 4.4 Steps of design Jigs and fixtures:


18. Why burr clearance is provided in jig? (2 Marks, W-2017)
19. Explain the terms swarf clearance and burr clearance with neat sketch. (3 Marks, W-2019)
20. Explain following terminologies. 1) Fool proofing (Topic – 3.6) 2) Swarf clearance. (4 Marks,
S-2021)

21. State the parts of a milling fixture. (2 Marks, S-2021)

22. Describe milling fixture with neat sketch. (3 Marks, W-2019)

23. Write the functions of Tenon and setting block in milling fixture. (4 Marks, S-2018)
24. State functions and materials of Tenon and Setting block with neat sketches. (3 Marks, W-
2019)
25. State the function of setting block(2 Marks, W-2018)
26. State the function of tenon strip and setting block. (2 Marks, W-2020)

27. List turning fixture. (2 Marks, W-2018)


28. Explain with sketch turning fixtures. (3 Marks, W-2021)

29. Describe with help of sketch any one type of welding fixture. (4 Marks, W-2018)
30. Describe welding fixture with neat sketch. (3 Marks, W-2019)

 4.5 Benefits of Jigs and Fixtures:


Jiteshsir’s Om Namah Shivay

31. State the advantages of using Jig & Fixture. (2 Marks, W-2018)
32. Give advantages of Jigs and Fixtures in mass production. (4 Marks, W-2017)
33. Explain importance of jigs and fixtures in context of productivity and interchangeability. (4
Marks, S-2020)

34. State difference between jig and fixture. (4 Marks, W-2020)


35. State differences between Jigs and Fixtures. (3 Marks, W-2019)
36. Differentiate: Jigs & Fixtures. (2 Marks, S-2019)
37. State four differences between Jig and Fixture. (4 Marks, W-2021) (4 Marks, S-2018)

 4.6 Design of Jig for a simple component:


38. Explain principles of jig and fixture design. (3 Marks, W-2020)
39. State the general principle of jigs and fixture design and explain any two principles. (4
Marks, W-2018)
40. State the general principles of jigs and fixtures and explain any two principles. (4 Marks, W-
2021)

 Exercise:
41. Define (1) Jig and (2) Fixture. (2 Marks, S-2020)
42. Define JIG and Fixture. (2 Marks, S-2018)

 Jig Bush
43. Explain the selection criteria of jig bush. (4 Marks, S-2020)
44. Explain the selection criteria for jig bush. (3 Marks, W-2018)

45. When headed bush is used in jig? Draw its sketch. (3 Marks, W-2017)

46. State different types of bushes and sketch any one. (3 Marks, S-2021)
47. State the types of jig bush. Describe any two with neat sketch. (3 Marks, W-2019)
48. Explain different types of bushes. (4 Marks, W-2020)
49. Name various types of bushes. (2 Marks, W-2021)

50. Draw a figure of slip renewable bush. (2 Marks, W-2020)

51. Explain design principles for drill bushings. (3 Marks, W-2017)

52. Select appropriate tool material and heat treatment processes for Jig bush and twist drill.
(2 Marks, W-2019)
Jiteshsir’s Om Namah Shivay

 Numericals:
53. Design a suitable Jig for the component shown in Fig. 1. to drill 10 mm diameter hole. (7
Marks, S-2021) Solution Video 6

54. Design a suitable jig to drill 2 holes of 10 mm diameter for the component shown in figure-
1 (7 Marks, W-2020) Solution Video 7

55. Design a suitable jig to drill holes of 8 mm. diameter for the component shown in figure-2,
also sketch its important components with dimensions. (7 Marks, S-2020) Solution Video 4
Jiteshsir’s Om Namah Shivay

56. Design a suitable jig to drill four holes of 8 mm. diameter for the component shown in
Figure-1. (7 Marks, W-2019) Solution Video 4

57. Design a suitable Jig to drill 4 holes of 8 mm diameter for the component shown in Fig-1. (7
Marks, S-2019) Solution Video 5

58. Design a suitable milling fixture to mill a slot of 6 mm width and 4 mm depth In a
component as shown in fig. 1. Draw the assembly sketch showing important components.
(7 Marks, W-2017)
Jiteshsir’s Om Namah Shivay

CH 5 – Press Tools:

 5.1 Press working processes – Types, sketches and applications:


1. Classify press operations. (3 Marks, W-2020)

2. Define (1) slitting process and (2) blanking process. (2 Marks, S-2020)
3. Explain following press operations (1) Punching (2) Notching (3) Trimming (4) Embossing(4
Marks, W-2017)
4. What is Perforating & Notching? (2 Marks, S-2019)
5. Explain following press operations I) Perforating II) Lancing III) Nibbling IV) slitting (4 Marks,
S-2018)

6. State the applications of embossing and coining die. (2 Marks, S-2021)

 5.2 Press tools – Types, working and functions of press tools:


7. Draw press tool assembly and list important elements included in press tool assembly. (7
Marks, W-2021)
8. Write different components of a press tool. (2 Marks, S-2021)
9. Draw and name the parts of press tool assembly. (3 Marks, W-2020)
10. Draw a neat sketch of press tool assembly and name the components. (4 Marks, W-2018)

11. Explain the function of the following parts. (i) Tenon (ii) Bolster plate (iii) liner bush (3
Marks, S-2019)
12. State purpose of bolster plate. (2 Marks, S-2018)

13. Explain with sketch the working of pilots. (4 Marks, W-2021)


14. State the functions of pilot and stripper in press tools. (2 Marks, W-2019)
15. State the reason of using pilot. (2 Marks, W-2018)
16. State the functions of pilot. (2 Marks, S-2020)
17. State the function of stock stop and pilot. (2 Marks, W-2020)
18. State type and function of stripper. (4 Marks, W-2018)
19. Explain with sketch any one type of strippers. (4 Marks, W-2021)

20. State the functions of stock stop and knockout in press tools. (2 Marks, W-2019)
21. State the functions if knockout. (2 Marks, S-2018)
22. What is knock-out and state it types. (4 Marks, W-2018)

23. Give classification of press tools. (3 Marks, W-2021)


24. Classify press tools based on operation & construction. (4 Marks, S-2019)
25. Classify press tool according to process. (3 Marks, S-2018)
Jiteshsir’s Om Namah Shivay

 5.3 Concept meaning, definitions and calculation of press tonnage


and shut height of press tool:
26. Define shut height of press and press tonnage. (2 Marks, W-2020)
27. Define the following with reference to press. (i) Tonnage capacity (ii) centre of pressure (iii)
Shut height of press (iv) Shut height of die. (4 Marks, S-2019)
28. Define Shut height of press and shut height of die. (2 Marks, W-2019)

 Numerical on Tonnage Capacity:


29. Calculate press tonnage in tons for a blank having thickness of 3 mm and perimeter 200
mm. Take shear stress equal to 400 N/mm2. (3 Marks, W-2021)
30. Calculate the tonnage capacity of press to cut a M.S. Washer shown below in Figure-1.
(Assume Fs= 350 N/mm2) (4 Marks, S-2020)

 5.4 Shear action in die cutting operation:


31. Explain shear action in die cutting operation. (4 Marks, S-2020) (4 Marks, S-2019) (3
Marks, S-2018)

 5.5 Centre of pressure – concept, meaning, definition, methods of


finding and importance:
32. Explain analytical / mathematical method for finding centre of pressure. (4 Marks, W-2021)
33. Define centre of pressure and list various methods to find out centre of pressure. (2 Marks,
S-2018)
34. Define centre of pressure. State the method to find it. (4 Marks, W-2018)
35. What are the methods to find centre of pressure. (2 Marks, W-2021)
36. List the method of to determine centre of pressure and explain any one. (4 Marks, W-
2020)
Jiteshsir’s Om Namah Shivay

 Numerical on centre of pressure:


37. Calculate the Centre of pressure for the blank shown in Fig 2. (4 Marks, S-2021)

38. Find centre of pressure and tonnage of press for component shown in figure-3. (3 Marks,
W-2019)
Figure not given
39. Find the Centre of pressure for the blank shown in Fig-2. (4 Marks, S-2019)

 5.6 Die clearance – Concept, definition, reasons, effects and


methods of application:
40. Explain how clearance is applied in piercing and blanking operation. (4 Marks, W-2018)
41. State any four reasons for providing die clearance. (2 Marks, W-2020)
42. List reasons for providing die clearance. (3 Marks, W-2021)
43. What is Die Clearance? List the reasons for providing die clearance. (4 Marks, S-2019)

 Numerical on Punch and Die Clearance:


44. Calculate dimensions of punch and die for a steel washer of 2 mm thickness having inner
diameter 20 mm and outer diameter 50 mm.

 5.7 Cutting Force – methods to calculate & methods of reducing:


45. Explain the methods of reducing cutting force during operation in press tool design. (3
Marks, S-2021)
46. Discuss the method for reducing cutting force on punch. (4 Marks, S-2020)
47. Enlist the methods to reduce cutting force in press tool. (2 Marks, W-2019)
48. Name the methods of reducing cutting force in press working and explain any one. (3
Marks, W-2021) (3 Marks, W-2018)
Jiteshsir’s Om Namah Shivay

 5.8 Shear angle concept, need and method to give shear angle on
punch and die:

 5.9 Strip layout – concept, importance, method to prepare and


determining percentage stock utilization:
49. Explain strip layout and percentage utilization with suitable example. (4 Marks, W-2020)
50. Write short note on scrap strip lay out. (3 Marks, S-2021) (4 Marks, S-2020)
51. Explain scrap strip layout. (4 Marks, W-2021)
52. Explain strip lay out with suitable example. (4 Marks, S-2018)

 5.10 Types, working and applications of stock stop, pilots, strippers


and knock outs:

 5.11 Cutting dies – types and applications:


53. State types of cutting dies and explain any one. (3 Marks, S-2021)

 5.12 Design of progressive cutting die:


54. Explain working of progressive die with sketch. (4 Marks, W-2021)

55. State difference between compound and progressive die. (4 Marks, W-2020)
56. Differentiate between combination die and compound die. (3 Marks, S-2020)
57. Differentiate between Compound Die & Progressive Die. (4 Marks, S-2021) (3 Marks, S-
2019)
58. Give differences between compound die and progressive die. (7 Marks, S-2018)
59. Differentiate between simple die and compound die(4 Marks, W-2018)

 Numerical:
60. Select a suitable die-set for component shown in figure-2. Calculate dimensions and
prepare sketches of Punch & Die. Draw assembly of die-set you have selected. (4 Marks,
W-2019)
Jiteshsir’s Om Namah Shivay

61. A steel circular washer having internal diameter 20 mm, outer diameter 40mm and
thickness 2 mm is to be manufactured with the help of progressive die from the material
having shear strength 400 N/mm2. Length of strip is 2 m. Assume suitable data if necessary.
Determine: (i) Cutting force, (ii) Punch & die size for punching and blanking operation, (iii)
Draw scrap strip layout and find percentage stock utilization. (7 Marks, W-2018)
62. Find Max % utilization possible showing scrap-strip layout for component shown in figure-
2(3 Marks, W-2019)

63. A steel washer has its internal diameter 6 mm, external diameter 30 mm & thickness 0.9
mm. Find out the dimensions of punch & die for the washer. (4 Marks, S-2019)

CH 6 – Dies

 6.1 Bending:
1. Explain bending dies. (4 Marks, W-2020)
2. With neat sketch explain bending die. (4 Marks, W-2019)

3. Write short note on V bending die. (3 Marks, S-2020)


4. Explain V-bending in brief. (2 Marks, S-2019)

5. Define bend allowance and spring back. (2 Marks, W-2019)


6. Explain following terms with a neat sketch. 1) Bend allowance 2) Spring back (4 Marks, S-
2021)

7. Define spring back. (2 Marks, W-2020)


8. What is spring back? (2 Marks, S-2019)
9. What is spring back? (2 Marks, S-2018)
10. What are the factors causing spring back effect? (2 Marks, W-2018)

 Numerical on Bending:
11. Calculate the bending force in KN for a 45̊ bend in 1.0 mm thick & 1000 mm long
aluminium piece. Take die opening as 8 times metal thickness. Take ultimate tensile
strength S= 450 N/mm2 (4 Marks, S-2019)
Jiteshsir’s Om Namah Shivay

 6.2 Drawing dies – types and method to determine blank size for
drawing operation:
12. List the different types of drawing dies and explain any one. (4 Marks, S-2020)
13. List different types of the drawing dies & explain any one. (3 Marks, S-2019)

 6.3 Types, Sketch, Working and applications of drawing dies


(embossing, curling, bulging, swaging, coining and hole-fanging)
14. Explain curling die with neat sketch and suitable example. (4 Marks, W-2019)
15. Explain the curling die. (3 Marks, S-2019)

16. Explain bulging die with neat sketch. (4 Marks, W-2020)


17. Draw neat sketch of Bulging die. (2 Marks, S-2019)

18. State advantages and limitations of Bulging Die. (4 Marks, S-2018)

19. Draw neat sketch of coining die. (2 Marks, S-2020)


20. Which type of die will you select for the following product and why? (i) Washer (ii) Cup (iii)
Coin(3 Marks, W-2018)

 6.4 Forging dies – Terminology, types, sketch, working and


applications:
21. Name various terms associated with forging dies. (2 Marks, W-2021)

22. Describe two main types of forgings. (6 Marks, S-2018)

23. Describe up-set forging die with neat sketch. (4 Marks, W-2019)

24. Define draft and fillets in context of forging die. (2 Marks, W-2019)

25. State different types of forming die and explain any one. (4 Marks, S-2021)

26. Differentiate between Bending & Forming. (4 Marks, S-2021) (3 Marks, W-2021) (4 Marks,
S-2019)
27. Differentiate between bending and forming dies. (3 Marks, W-2018)
28. Differentiate between forming and bending. (3 Marks, S-2020)

29. Explain blanking and punching with suitable example. (4 Marks, S-2021)

30. State difference between punching and blanking. (4 Marks, W-2020)


31. Differentiate between Blanking & Punching. (4 Marks, S-2019) (2 Marks, W-2021)
32. Give difference between punching and blanking. (2 Marks, S-2018)
33. Differentiate between punching and blanking operation. (2 Marks, W-2018)
Jiteshsir’s Om Namah Shivay

 6.5 Sketch, working and applications of following dies: (i) Extrusion


dies, (ii) Plastic injection
34. Explain in brief on blow moulding. (4 Marks, S-2020)

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