Thermoforming

Question 1

Thermoforming

Answer 1

Process of pulling heated plastic into a mold by forcing the plastic down into the mold walls

Question 2

Three different ways to form plastic down

Answer 2

Vacuum. Air pressure and Mechanical Pressure

Question 3

Advantages of Thermoforming

Answer 3

Cost is low. Not complex forming method. Can produce large parts

Question 4

Disadvantages of Thermoforming

Answer 4

Output rate is low and cycle time is high. Dimensional accuracy is only fair. Products to have thinning in corners. Large amount of scrap waste.

Question 5

Three ways to heat teh plastic

Answer 5

Electric rod. Ceramics. Gass/flame

Question 6

Transport Mechanism

Answer 6

This is the mechanism that transports the plastic sheet into the heater and out of it.

Question 7

Clamp Ring

Answer 7

This is the part that rests on the plastic to keep it in place

Question 8

Cavity Mold

Answer 8

This is the part that the plastic gets sucked into and is the product.

Question 9

Vacuum Pump

Answer 9

This is the thing that creates the vacuum

Question 10

Surge Tank

Answer 10

This is where the vacuum is stored and also where the air is sucked into

Question 11

Hydraulic ram

Answer 11

These are used to push up the mold cavity or push down the plug assist

Question 12

Vacuum Table

Answer 12

This is the part that is attached to the mold cavity and will such down the air to bring the plastic down

Question 13

Cooling Blower

Answer 13

This is a fan that is used to cool the plastic once it is in the cavity mold

Question 14

Plug assist

Answer 14

This is a thing that can push into eh plastic sheet to create a seal for the mold

Question 15

Draw the process of a single station thermoforming

Answer 15

Labels

Question 16

Draw the process of the three station Thermoformer

Answer 16

Labels