27 laminating scroll saw work & pyrography
TRANSCRIPT
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