Answer any seven out of ten. 1. Enlist four material used for making Blow Moulds. 2. Define Blow Ratio. 3. List out the materials used for making Plugs. 4. Which are the main Functions of core rod in Injection Blow Mold? 5. Define Welding Edges. 6. Enlist Mold Finishing Techniques. 7. Define Radii. 8. State any two Flash Removal Methods. 9. Which part of blow mold requires Higher Cooling Rate? Provide reason. 10. Define Draw ratio.
State properties of Beryllium Copper as Blow Mold Material.
[3 marks]Explain significance of Draw Ratio in detail.
[3 marks]Explain use of Alignment Pins in Blow Mold.
[3 marks]Sketch any two plug shapes.
[3 marks]Explain design consideration for Vent In Thermoforming Mould.
[4 marks]Draw neat sketch of Parison Stick and label different parts.
[4 marks]Explain any Surface Treatment method for Thermoforming.
[4 marks]Write a short note on mould Cleaning Methods for Blow Moulds.
[4 marks]Give important points to be considered while Design Blow Mould Parting Line.
[3 marks]Give basic concepts about Plug Design.
[3 marks]Write short note on Alignment Pins.
[3 marks]Write in brief about Chamfers in Thermoforming Mold.
[3 marks]Explain the Design Criteria for Vacuum Holes.
[4 marks]With sketch explain Flash Pockets.
[4 marks]Write short note on Plug Assist Thermoforming Mold.
[4 marks]List various Blow Mold Ejection methods and explain any one. 1/2
[4 marks]Explain characteristics of Aluminum as Blow Mold Materials.
[3 marks]Write Short Note on Draft Angle.
[3 marks]Explain Sheet Clamping Mechanisms for Thermoforming.
[4 marks]Explain method for deciding Clamping Force in Blow Molding.
[4 marks]Draw only Sectional Elevation of a Blow Mold Assembly for a product of your choice.
[7 marks]Enlist various Moving Elements for Thermoforming mold. Explain any one in brief.
[4 marks]Explain Striker Plates in brief.
[4 marks]Give short note on Surface Texturing In Thermoforming.
[3 marks]Explain Importance of Pinch-Off in Blow Mold. 2/2
[3 marks]