Vacuum Forming

Which of these statement is incorrect?

• The surface of the former must be smooth

• Holes must be drilled on the sides of former

• The corners of the former must be sharp

• The height of the former must not be too tall

Which of this statement is correct?

• The corners of the former must be sharp

• The former must be made from aluminium only

• The former design must be tapered.

Why is there clear plastic sheet covering one side of the HDPE plastic?

• To protect the surface from dirt

• To show that it is new

• To protect the surface from scratches

• To identify the correct side to use

What will happen to the plastic sheet if your former is too deep?

• It will form webs at the corners when the plastic is being shaped

• The plastic will lose its colour

• The plastic will melt on the former

What is a former?

• A machine that cuts the plastic sheet after it is formed

• A tool that shapes the edges of the plastic sheet after it is formed

• A mold to shape the plastic sheet

Which is an example of a product made using vacuum former.

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Why do you need to drill holes into the former?

• It is easier for the plastic sheet to cover the former

• It will be easier to melt the plastic sheet

• The size must be small

• To remove trapped air easily

What is vacuum former used for?

• To bend plastic into 90 degrees

• To form thin plastic sheets into various shapes

• To melt plastic sheets

Which of these statement is incorrect?

• It cannot be used to form very tall designs

• It can create a variety of uneven shapes

• The former can be used many times

• It can be used to form all types of materials.

Which of these process is incorrect?

• The blower is used to help release the plastic from the former

• The heater must be placed over the plastic sheet to make it soft

• The vacuum must be turned on while the plastic is being heated

• The former is placed under the plastic sheet