Explain following terms: (1) Parting lines (2) Ribs (3) Bosses
[3 marks]Explain about different types of undercuts in moulded plastic parts.
[4 marks]What are the different modifications to be done in nominal wall to improve its structural response?
[7 marks]Suggest the appropriate location of heater in compression molding.
[3 marks]Explain Approach section and land in extrusion process with figure.
[4 marks]Explain in detail about Hot runner moulds and cold runner moulds.
[7 marks]Write about the basic heating systems for plates & Molds.
[7 marks]Explain die design procedure steps.
[3 marks]Why a small gate is desirable for any plastic product to be produce?
[4 marks]Explain different types of gates used in polymer industries.
[7 marks]How to calculate loading chamber depth in compression molding.
[3 marks]Explain in detail about semipositive vertical flash type of compression molding.
[4 marks]Explain the tubing die with a neat sketch.
[7 marks]What do you mean by die swell? Explain the various factors that influence by die swell.
[3 marks]Explain the design of pot transfer mould with neat sketch.
[4 marks]How to calculate number of cavities in Transfer moulds? Explain.
[7 marks]What do you mean by venting? Suggest various location of vent.
[3 marks]What are the different factor that influence thermoset molding?
[4 marks]Explain the following parts of Injection moulds with figure. (1) Fixed Clamping Plate (2) Runner Stripper Plate (3) Cavity Plate (4) Ejector Retainer Plate
[7 marks]Give classification of Extrusion dies.
[3 marks]What are the different types of heat losses occurred in compression mould? Explain it with formula.
[4 marks]What do you mean by Plasticising capacity? How to calculate number of impression by plasticising capacity.
[7 marks]Explain various types of runner design in transfer molding.
[3 marks]What are the selection criteria of a mould material?
[4 marks]Define CAD. Explain the steps involved in CAD process. What are the benefits of implementing CAD?
[7 marks]