Joining

Question 1

What glue is used to stick wood together?

Answer 1

PVA

Question 2

Contact adhesive

Answer 2

Glue is rubber based. It is put onto both surfaces, which don’t come into contact before glue goes tacky. Releases harmful fumes

Question 3

This glue sticks almost anything

Answer 3

Epoxy Resin. Takes 15 minutes to set.

Question 4

Superglue

Answer 4

More expensive than epoxy resin. Slight pressure required for a strong bond.

Question 5

How are plastics attached?

Answer 5

Acrylic cement. Plastics need to be clamped together for 24 hours.

Question 6

Type of joint in flatpack furniture

Answer 6

Brackets

Question 7

What is flux?

Answer 7

A cleaning agent. It’s stops air oxidising the surface of the metal when you are heating it (this would stop the joint from taking)

Question 8

Explain soldering

Answer 8

Soldier, made from tin, is melted onto components. It then cools and solidifies. Low temperature.

Question 9

Explain brazing

Answer 9

Brass rod is melted onto components. It then cools and solidifies. High temperature.

Question 10

Explain welding

Answer 10

Strongest way to join metals. Edges of joint are melted so they flow together. Also, can fix slight gaps using welding rods.

Question 11

What is a rivet?

Answer 11

A rivet is a metal peg with a head on one end.

Question 12

When are pop/blind rivets used?

Answer 12

When there is only access to one side. It is fast and easy. Often used to join sheet metal.