Lamination Flashcards
Why is the lay-up process unlike other moulding methods?
- CT
As it is very manual and requires great skill.
Why do we laminate papers and cards?
- CT
It is done to protect the product, prolong it’s life or to improve its aesthetic features.
What is needed to create accurate shapes in the laminating timber process?
- CT
A large amount of pressure as well as highly accurate moulds.
In the lay-up process, what is the mould prepared with?
- CT
A high quality surface finish.
What does ‘GRP’ stand for?
- CT
Glass reinforced polyester.
What is the main downside to laminating card etc. ? -F.W.
It greatly increases the cost.
What is a requirement of the timber used in bending timber? -F.W.
It has to be comprised of thin sheets.
What is the equivalent of laminating, but for composites? -F.W.
Laying up.
Which notable timber glue cannot the used for vacuum bag lamination? -F.W.
PVA.
What is the name of the “Mould” used in vacuum bag lamination? -F.W.
A former.
Crucial part of the first step on lay up?
- HA
No surface imperfections
What is different about the laying up process over other moulding processes?
- HA
Very manual and therefore requires great skill
Name three notorious composites
- HA
Fibreglass, Kevlar and carbon fibre
Result from bag press moulding?
- HA
A bend as good as the mould, more uniform structure
Why is a large amount of pressure needed in Laminating?
- HA
To create accurate shapes, along with highly accurate moulds
Is clamping or a bag press better for creating a high quality laminated products?
-EW
A bag press as the pressure is even across the surface of the product and the glue will cure evenly
Why do the car industry favour carbon fibre use in cars?
-EW
It has a very high strength to weight ratio. It is incredibly rigid when set/cured for its very small weight.
How is colour added to a laminate composite if desired?
-EW
A gel coat layer can be applied and can be mixed with a very small amount of pigment to give colour.
Why is are composite laminates so expensive?
-EW
The man hours required to make them are huge, and it is a highly skilled job too.
Plywood is a composite. True or False?
-EW
False it is commonly considered a composite which is wrong.
