Plastic mold & Die design(Department Elective - II) — Summer 2018

Explain mould design principles

What is the role of heat treatment in mold construction?

Classify different types of mold materials and their properties used for mold construction

Explain air ejection system.

Explain runner and gate balancing system with neat sketches

Explain 3-plate mold with neat sketch

Explain collapsible core technique with neat sketch.

What is feed system?

What is gate? Why gate position is important in mold design

Explain different types of ejection systems used in injection molding

Explain flash type compression mold

Explain different types of cooling systems used in injection molding with neat diagrams

Explain the working principle of Wire-cut machine

What is the role of CNC machines in mold fabrication?

What is the working principle of spark erosion machine?

Explain cam track actuation system with neat diagram

What are Extrusion process parameters

Explain different types of Runners and their efficiencies.

What is the concept of Hot-runner molds with their advantages and disadvantages

What are the process variables used in compression molding

Explain the stages in compression molding cycle with neat sketch

Describe extrusion die and its design considerations.

What is the process parameters used in transfer molding?

What are the advantages and disadvantages of transfer molding

Explain the considerations for designing of pot used in transfer molding.