This download link is referred from the post: SGBAU B.Tech Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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B.Tech. Eighth Semester
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11150 : Mould Design for Plastics : 8 PP 04
Time : Four Hours Max. Marks : 80
Notes:
- Answer three questions from Section A and three questions from Section B.
- Due credit will be given to neatness and adequate dimensions.
- Assume suitable data wherever necessary.
- Diagrams and chemical equations should be given wherever necessary.
- Illustrate your answer with the help of neat sketches.
- Discuss the reaction, mechanism wherever necessary.
- Use of pen Blue/Black ink/refill only for writing the answer book.
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SECTION - A
- a) Explain pressure casting technique of mould making in detail. 7
b) What do you mean by Mould? Give its working & significance. 6
OR - a) What are the various types of materials used in making & construction of mould? 5
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b) Describe cold hobbing process of making various parts, with the help of neat sketch. 8 - a) Explain with design sprue, having different type of design to suit the modified mould design. 7
b) Draw & discuss how Single-Day light & Multi-Day light works? 6
OR - a) Define term Bolster? Discuss it's various type with help of neat sketch. 6
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b) Describe Integer method of making cavity/core plate with the use of local inserts? 7 - a) Why Ejection system design is to be considered while design of mould? Explain its various technique of ejection. 7
b) Explain the importance of cooling systems in injection mould? Discuss its various type in detail. 7
OR - How will you determine most Economical number of cavities for an injection mould? 14
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SECTION -B
- a) Explain the calibrating devices used in pipe manufacturing process. 5
- b) Explain the following: 8
i) Tape die ii) Coat hanger die--- Content provided by FirstRanker.com ---
Used for sheet extrusion process.
OR - a) State the fundamental design aspects for tape die and profile die. 7
b) Write basic design aspects of gear & bearing for extrusion. 6 - a) Explain in detail standard components of compression mould with its typical design. 7
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b) Discuss the factors considered while designing runner systems for compression mould. 6
OR - Explain working principle of positive, semi-positive & flash type of mould, with its design features. 13
- a) Explain with the help of neat sketch loose plate type transfer mould. 7
b) Which factors are considered while designing transfer mould. 7--- Content provided by FirstRanker.com ---
OR - Explain the following in detail: - 14
i) Vents
ii) Clamping force
iii) Transfer pressure
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This download link is referred from the post: SGBAU B.Tech Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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