Process Planning & Tool Selection B.E Question Paper : unipune.ac.in

Name of the University : Savitribai Phule Pune University
Department : Production Engineering
Degree : B.E
Subject Code/Name : Process Planning And Tool Selection
Sem : II
Website : unipune.ac.in
Document Type : Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/unipune.ac.in/6809-B.E.(2003%20Patt.).pdf

Process Planning & Tool Selection Model Paper :

B.E. (Production Engineering) :
(2003 Pattern) (Sem. – II)
Time :3 Hours
Max. Marks :100
Instructions to the candidates:-
1) Answer any 3 questions from each section.
2) Answers to the two sections should be written in separate books.

Related : Savitribai Phule Pune University Oil Well Drilling Engineering B.E Question Paper : www.pdfquestion.in/6808.html

3) Neat diagrams must be drawn wherever necessary.
4) Figures to the right indicate full marks.
5) Assume suitable data, if necessary.
6) Use of electronic pocket calculator is allowed.

SECTION – I :
Q1) a) “What is process? Explain with a neat line diagram how the Manufacturing processes are classified? [8]

b) Define the following terms : [8]
i) Part and work – piece.
ii) Equipment and tooling.
iii) Operation and routing.
iv) Specification and dimensions.
OR
Q2) a) List the main responsibilities of process engineer. [8]
b) What are the considerations for manufacturing and assembly operation while designing a product. [8]
Q3) a) What are the two methods of dimensioning? Which method is normally preferred and why? [8]
b) What is a datum? What is the advantage of using datum? Is it always possible to establish a physical datum? Explain. [8]
OR

Q4) a) What is meant by geometry of form? Define the followings :- [8]
i) Flatness,
ii) Straightness,
iii) Angularity,
iv) Concentricity.
b) What is the purpose of grouping the related surfaces or areas? Explain. [8]
Q5) a) What do you mean by selective assembly? Explain the three general types of fits with appropriate examples? [9]
b) What causes work – piece variations? What are the variables which interface with work – piece control? [9]
OR
Q6) a) What are the design and process tolerance stack? Explain with suitable example. List the problems incurred due to tolerance stack. [9]
b) What are the rules for locating long cylinder and short cylinder? Explain with neat diagram. [9]

SECTION – II :
Q7) a) Discuss various factors affecting on selection of tooling. [8]
b) Differentiate between general purpose machine (GPM) and special purpose machine (SPM). List any four GPM’s. [8]
OR
Q8) a) What is mean by process capability of equipment? Explain and differentiate between prime accuracies and producing accuracies. [8]
b) Compare and explain various types of holders used for cylindrical tools. [8]

Q9) a) Explain in detail the steps involved in variant process planning. List CAPP software packages used in manufacturing industry. [8]
b) How are the critical areas on a work – piece generally identified? Distinguish between product critical areas and process critical areas. Which is most likely to occur in operation sequence? [8]
OR
Q10) a) Explain Automatic Time Standard System (ATS) in CAPP? [8]
b) Describe the steps of the engineering approach to selecting and planning a process. [8]

Q11) A precision Engineering Company have won a contract to manufacture 5000 units of a component as shown in figure1., with a view to repeat orders every two months. The holes are to be produced on a manual drill press and have to ensure required accuracy and repeatability. Prepare a process sheet for a component to have a minimum cost per piece. [18]
All dimensions are in mm. General tolerance ± 0.1 unless otherwise stated.  Quantity Material Scale 5000 Mild Steel 1 : 1

OR

Q12) The part drawing shown in fig. 2, shows a flanged component is to be manufacture in batches of size 500, at an intervals of two weeks. Prepare the process sheet containing manufacturing plan with operation sequence, equipments, tooling, process parameters and cycle time per piece. [18]

CAD/CAM/CIM : (2003 Pattern) (Sem. – II)
SECTION – I :
Unit – I :
Q1) a) Perform the following transformation if the coordinates of vertices of triangle are A(2,2), B(6,2), C(4,6) the transformation in sequence are
i) Scaling by 2 units in X and Y direction.
ii) Rotate by 30 degree anticlockwise about A, [8]
b) Explain image creation techniques in cad [8]
OR

Q2) a) Explain different surface entities. [6]
b) A line XY with end points X(2,2) and Y(5,5) find new co-ordinates of a line for following transformation
i) Translate X 2 unit and Y 3 unit,
ii) Scale in X and Y direction by 2,
iii) Rotate by 45 degree in CCW,
iv) Reflection about origin. [10]

Unit – II :
Q3) a) Why tool presetting is required for CNC? Explain the set up with sketch. [6]
b) Explain different layouts in FMS. [6]
c) Explain sub routine and Do loop used in CNC programming. [6]

Q4) a) Write a note on [8]
i) automated factory,
ii) CANQ.
b) Write a CNC program in G and M code for a part as shown in fig No.1. Also write a remark for each block. [10]