Download GTU BE/B.Tech 2019 Summer 4th Sem New 2143407 Mould Manufacturing Technology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 4th Sem New 2143407 Mould Manufacturing Technology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2143407 Date:09/05/2019
Subject Name: Mould Manufacturing Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.


MARKS

Q.1 (a) Explain how mould cost is estimated and quoted. 03
(b) Explain the working principle of Vernier Caliper with neat sketch. 04
(c) Name different non-metallic materials used for mould construction and
what are its advantages & Disadvantages
07

Q.2 (a) What is the necessary of hard chrome plating 03
(b) Explain the functioning of Dial-Gauge with neat sketch. 04
(c) Explain the working principle of WIRE-EDM with neat sketch. 07
OR
(c) Explain beryllium-copper alloy? Why it is important in mould
manufacturing? State its advantages and disadvantages.
07
Q.3 (a) Name different parts of the mould. 03
(b) Explain the working principle of micrometer with neat sketch. 04
(c) What is Rapid Prototyping? Explain Stereolithography technique with
neat sketch.
07
OR
Q.3 (a) What is Chemical etching technique? 03
(b) Explain how slip gauges are classified based on their accuracy 04
(c) What is heat treatment process? Explain nitriding heat treatment
procedure.
07
Q.4 (a) What is pantograph? 03
(b) Write a short note on mould maintenance. 04
(c) Explain different types of steels used for mould manufacturing. 07
OR
Q.4 (a) How mould life is calculated? 03
(b) Explain vacuum hardening heat treatment process. 04
(c) Why mould maintenance is important? Explain how it can be achieved by
proper scheduling?
07
Q.5 (a) State the difference between CNC-Turning and CNC-Milling 03
(b) Write a short note on mould assembly. 04
(c) Explain how mould cavity thickness can be calculated and why it is
important
07
OR
Q.5 (a) How mould is protected against wear and Corrosion. 03
(b) Explain different types of Mould polishing techniques. 04
(c) What is CMM? Name different types of CMM? What are the functions of
CMM?
07


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