GTU BE 8th Semester 2182310/2182313 Mold Manufacturing Technology(Departmental Elective – III) Summer 2018 Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VIII (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2182310/2182313 Date: 02/05/2018
Subject Name: Mold Manufacturing Technology(Departmental Elective –
III)
Time: 10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) List the non ferrous metals employed in the mold making. Explain
about Zinc alloys.
03
(b) List the reasons for non-metallic materials used for mold. 04
(c) Explain about elastomeric mold materials. 07

Q.2 (a) List the basic materials used polishing for the mold. 03
(b) Explain about Role and Responsibility of mold designer. 04
(c) Explain the components of CNC machines. 07
OR
(c) List the properties of steel should posses for the mold construction. 07
Q.3 (a) Define Heat Treatment. Explain about carburizing in brief. 03
(b) Define Lathe. Explain in brief about Turning and Facing operation of
Lathe.
04
(c) What is Chemical Etching? what is the application of it in mold
manufacturing?
07
OR
Q.3 (a) Define Milling. Give the classification of Milling operation. 03
(b) Explain Vacuum Hardning Process. 04
(c) Explain mold assembly procedure in detail. 07
Q.4 (a) Short Note: CMM(Coordinate measuring machines) 03
(b) In modern tool room which type of machining operation employed
for making core and cavities?
04
(c) Explain About EDM process and its working principle with neat
sketch.
07
OR
Q.4 (a) List the basic process steps of proto typing. 03
(b) What is Rapid proto typing? List the various methods of Rapid
prototyping.
04
(c) What is cutting tools? List the characteristic of ideal cutting tools. 07
Q.5 (a) List the common alloying elements in the steel. 03
(b) Draw the line diagram of optimistic job planning for mold making. 04
(c) Compare: CNC machines with conventional machines. 07
OR
Q.5 (a) List the work holding device used for Lathe. Explain any one. 03
(b) Short note: Cryogenic Heat treatment. 04
(c) Explain part programming structure of CNC milling with examples. 07
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