WorksheetsUnderstanding Extrusion Process
Total questions: 10
Worksheet time: 5mins
What is extrusion used to create?
Objects of a fixed cross-sectional profile
Molded sculptures
Flexible sheets of material
3D printed objects
Which material is not listed as an example used in extrusion?
Polyethylene (PE)
Silicone
Polyvinyl chloride
Acrylonitrile butadiene styrene (ABS)
What are the main advantages of extrusion?
Complex cross-sections and working with brittle materials
Color variety and flexibility
Speed and cost
Durability and strength
What does the extrusion process have in common with injection moulding?
Both create objects with uniform cross-sections
Both require molds to shape the plastic
Both use a die of the desired cross-section
Both involve heating plastic until liquid
How is plastic prepared for the extrusion process?
By dissolving it in a solvent
By cooling it to a solid state
By compressing it into pellets
By heating it until liquid
What is a characteristic feature of an extruded product?
Split lines
Uniform cross-section
Varying thickness
Multiple colors
Why are there no split lines in extruded products?
Because they are made from a single material
Because the products are painted
Because there is no mould used
Because they are polished after extrusion
What role does the hopper play in the extrusion process?
It shapes the plastic into the final product
It cools the extruded product
It controls the amount of plastic going into the barrel
It heats the plastic
What happens to the plastic in the barrel during extrusion?
It is cooled rapidly
It is heated until liquid
It is mixed with other materials
It is compressed
How does extrusion differ from injection moulding?
Extrusion cannot create complex shapes
Extrusion is only for metals
Extrusion does not use a mould
Extrusion uses higher temperatures
