GTU BE 2019 Summer Question Papers || Gujarat Technological University
Subject Name: Mold Manufacturing Technology
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VIII(NEW) EXAMINATION - SUMMER 2019
Subject Code: 2182313
Date: 13/05/2019
Time: 10:30 AM TO 01:00 PM
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.No. | Question | Marks |
|---|---|---|
| Q.1 (a) | Explain about Role and Responsibility of mold designer. | 03 |
| Q.1 (b) | List the reasons for non-metallic materials used for mold. | 04 |
| Q.1 (c) | Explain the components of CNC machines. | 07 |
| Q.2 (a) | List the non ferrous metals employed in the mold making. Explain about Zinc alloys. | 03 |
| Q.2 (b) | List the basic materials used polishing for the mold. | 04 |
| Q.2 (c) | Explain about elastomeric mold materials. | 07 |
| OR | ||
| Q.2 (c) | List the properties of steel should posses for the mold construction. | 07 |
| Q.3 (a) | List the work holding device used for Lathe. Explain any one. | 03 |
| Q.3 (b) | Short note: Cryogenic Heat treatment. | 04 |
| Q.3 (c) | Explain part programming structure of CNC milling with examples. | 07 |
| OR | ||
| Q.3 (c) | List the common alloying elements in the steel. | 03 |
| Q.4 (a) | Draw the line diagram of optimistic_job planning for mold making. | 04 |
| Q.4 (b) | Compare: CNC machines with conventional machines. | 07 |
| Q.4 (c) | List the basic process steps-of proto typing. | 03 |
| Q.5 (a) | What is Rapid proto typing? List the various methods of Rapid prototyping. | 04 |
| Q.5 (b) | What is cutting tools? List the characteristic of ideal cutting tools. | 07 |
| OR | ||
| Q.5 (b) | Short Note: CMM(Coordinate measuring machines) | 03 |
| Q.5 (c) | In modern tool room which type of machining operation employed for making core and cavities? | 04 |
| Q.S (c) | Explain About EDM process and its working principle with neat sketch. | 07 |
| Q.S (a) | Define Milling. Give the classification of Milling operation. | 03 |
| Q.S (b) | Explain Vacuum Hardening Process. | 04 |
| Q.S (c) | Explain mold assembly procedure in detail. | 07 |
| OR | ||
| Q.S (c) | Define Lathe. Explain in brief about Turning operation of Lathe. | 03 |
| Q.S (a) | Define Heat Treatment. Explain about carburizing in brief. | 04 |
| Q.S (b) | What is Chemical Etching? what is the application of it in mold manufacturing? | 07 |
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