PPT on Veneer and Laminates Architectural

8/19/2019 PPT on Veneer and Laminates Architectural

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Veneer

A thin decorative covering ofne wood applied to coarser

wood or other material.An attractive appearance that

covers or disguises truenature or feelings.


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Types

Wood

Stone

Brick


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Wood

veneer refers tothin slices of wood

usually thinner

than mm typically

are glued ontocore panels

!usually on wood"particle #oard ormedium density#re #oard$

http://en.wikipedia.org/wiki/File:RCA_Dimensia_wood_grain_veneer_cabinet.JPG


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Wood

%t produces &at panels such as doors"tops and panels for ca#inates"par'uet &oors and parts of furniture.

%n #rief" a ()*W++, is cosist of threeor more layers of veneer" each gluedwith its grain at right angles toad-acent layers for strengths.

%t is a thin layer of decorative edgingplaced around o#-ect


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esources and (roduction Veneer is o#tained either #y /peeling/ the trunk of a

tree or #y slicing large rectangular #locks of woodknown as &itches.

The appearance of the grain and gure in wood comesfrom slicing through the growth rings of a tree anddepends upon the angle at which the wood is sliced

A rotary lathe in which the wood is turned against a

very sharp #lade and peeled o0 in one continuous orsemi1continuous roll. otary1cut veneer is mainly usedfor plywood" as the appearance is not desira#le#ecause the veneer is cut concentric to the growthrings.

A slicing machine in which the &itch or piece of log is

raised and lowered against the #lade and slices of thelog are made. This yields veneer that looks like sawnpieces of wood" cut across the growth rings2 suchveneer is referred to as /crown cut/.

A half1round lathe in which the log or piece of log can#e turned and moved in such a way as to e3pose the

most interesting parts of the grain.


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esources and (roduction

o 4ach slicing processes gives a

very distinctive type of grain"depending upon the tree species.

o %n any of the veneer1slicing

methods" when the veneer issliced" a distortion of the grainoccurs. As it hits the wood" the

knife #lade creates a /loose/ sidewhere the cells have #eenopened up #y the #lade" and a/tight/ side.


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aw Veneer

o This veneer has no bac"ing on it andcan be used !ith either side acing up.&t is important to note that the t!osides !ill appear di%erent !hen afnish has been applied due to the cellstructure o the !ood.


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(aper Backed Veneer

o &t is as the name suggests veneers that arebac"ed !ith paper.

o The advantage to this is it is available in

large si+es or sheets as smaller pieces are ,oined together prior to adding the bac"ing.

o This is helpul or users that do not !ish to ,oin smaller pieces o ra! veneers together.

o This is also helpul !hen veneering curvesand columns as the veneer is less li"ely tocrac".


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(henolic #acked Veneer

o (henolic #acked veneer is lesscommon and is used or composite ormanmade !ood veneers.

o -ue to concern or the naturalresource this is becoming morepopular.

o &t too has the advantage o beingavailable in sheets and is also lessli"ely to crac" !hen being used on

curves.


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)aid 5p Veneer

o )aid up veneer is ra! veneer that hasbeen ,oined together to ma"e largerpieces.

o The process is timeconsuming andreuires great care but is not dicultand reuires no epensive tools or

machinery.o 2eneers can be ordered through some

companies already laid up to any si+e

shape or design


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econstituted Veneer

econstituted veneer is made romastgro!ing tropical species.

'a! veneer is cut rom a log anddyed i necessary.

3nce dyed the sheets are laminatedtogether to orm a bloc".

The bloc" is then sliced so that theedges o the laminated veneerbecome the grain5 o the

reconstituted veneer.

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