Core Materials-timber Flashcards
Softwood
Grow in cooler climate (canada) ,softer and easier to work with , cone bearing-coniferous trees
Properties of softwood tree
Grow tall and straight-straight planks , looser grain structure,evergreen
Seasoning def
The drying out process of wood
Hardwood
Grow in temperate climates , harder and slightly more difficult to work with ,deciduous
Properties of hardwood tree
Broad leafed ,take 100 years to grow ,tighter grain structure , some evergreen but lode leafs in winter and autumn
Soft wood examples
Larch,pine,spruce,
Physical and working properties-larch
Pale with a darker,grainy knot
Durable,high sap content for water resistance, exterior building and flooring
Physical and working properties-pine
Pale coloured,aesthetically pleasing knot
Lightweight,easy to form , used for construction and decking
Physical and working properties-Spruce
Pale cream with even grain
Easy to form,takes stain well, used for construction and furniture
Physical and working properties-ash
Pale coloured narrow grain
Flexible and good for steam bending,tough,sports equiptment
Physical and working properties-Beech
Slight pink tint,close grain
Tough,durable,smooth to finish
Physical and working properties-mahogany
Dark-reddish colour,very close grain cuts and polishes easily,fine finish,high quality furniture
Physical and working properties-oak
Moderate brown colour with attractive grain marks
Tough and durable ,polishes well ,good quality furniture
Physical and working properties-balsa
Pale and widely spaced grain
Very soft and easy to form ,used to make models
Conversion def
After being felled ,the bark is stripped and rest is cut into panks