27 laminating scroll saw work & pyrography

WOOD MATERIALS TECHNOLOGY

4th Edition

Chapter 27Laminating, Scroll Saw Work and

Pyrography

Laminating

Features– Stronger than solid wood

of same size– Do not warp – Easily formed into shapes– There is a lot of waste – Lots of glue required– Moulds/formers needed

to form the shapes

Laminates

− Laminates – thin strips of wood (2-3mm)

Laminates used in buildings

− Glulam beams are used in buildings

Laminates are thin (1mm – 4mm thick)They are glued together to form a thicker pieceThey can be bent to shape using a former Cramps are used to hold the former closed

Laminating

Prepare thin laminates (1mm – 4mm) to make up the thickness required

Soften the laminates using hot water, so that they bend more easily

Apply glue to the surfacesPosition laminates in the

former with paper around them, to prevent them from bonding to the former

Cramp until dryClean and plane the edges Sand surfaces smooth

Using laminates

Steam bending

Scroll saw work

Scroll saw – Cutting detailed shapes

from thin pieces of wood

– Used to make pictures and jigsaws

– Intarsia pictures made from different woods

– Keep hands clear of the blade

Scroll saw work – fretwork

Cutting a pattern

Pyrography(Wood burning)

The art of wood burning

Pictures or symbols are burned onto the surface

A pyrography tool is used

Care must be taken, the tool is very hot

Pyrography

Quiz

What type of glue would be used for bonding the laminates of this frame?

– PVA glue– Casein glue– Formaldehyde glue

− Laminates are thin strips of wood or veneer

− They are about 1-4mm thick

− They are bonded together into shapes

Explain what laminates are

− A former is used to contain the laminates and hold them into a defined shape

Name the following piece of equipment and state its use

Former