Body materials:
1. Timber
2. Steel sheet
3. Plastic
4. GRP
1. Timber:
Before the introduction of plastics, timber was used in vehicle body construction, because it is readily available, easily worked and economically competitive, so far as the smaller manufacturer.
2. Steel sheet:
The vehicle body building industry uses many different types of steel. Low carbon steel is used for general construction members. High tensile steels are used for bolts and nuts which will be subjected to heavy load.
The steel sheet thickness various from 0.08mm to 1.5mm. This type of sheet metal is mostly used in vehicle body construction.
3.GRP:
It is a combination of two basic materials. One is glass fiber and other is thermoplastic resign. The resign materials are relatively low strength, brittle but when combined with glass fiber it becomes strong material.
4. Plastic:
The use of plastics for interior trim is well established, and new applications are being found for components associated with the running gear, examples including reservoirs, air cleaner housings, belt covers etc.
Corrosion and Anti-corrosion:
A vehicle body exposed to corrosion through out its life and because of the load carrying structure determines the service life of the vehicle, it is essential that it should be properly protected against such effects.
There are three types of vehicle body corrosion.
1. Chemical corrosion
2. Electro chemical corrosion
3. Fretting corrosion
Anti-Corrosion treatment
Corrosion can be prevented by three basic methods
1. Improve materials.
2. Protective coating.
3. Correct design.
Selection of paint:
The colors for finishing the vehicle should be based on scientific principles of colouring, which can be briefly outlined as follows,
VALUE: Value can be measured by the mixture of a natural grey, value corresponds to the concept of brightness or darkness of colours
INTENSITY: Intensity is defined by the mixture of white in the colours, where full colour has no white mixed with it.
1. Timber
2. Steel sheet
3. Plastic
4. GRP
1. Timber:
Before the introduction of plastics, timber was used in vehicle body construction, because it is readily available, easily worked and economically competitive, so far as the smaller manufacturer.
2. Steel sheet:
The vehicle body building industry uses many different types of steel. Low carbon steel is used for general construction members. High tensile steels are used for bolts and nuts which will be subjected to heavy load.
The steel sheet thickness various from 0.08mm to 1.5mm. This type of sheet metal is mostly used in vehicle body construction.
3.GRP:
It is a combination of two basic materials. One is glass fiber and other is thermoplastic resign. The resign materials are relatively low strength, brittle but when combined with glass fiber it becomes strong material.
4. Plastic:
The use of plastics for interior trim is well established, and new applications are being found for components associated with the running gear, examples including reservoirs, air cleaner housings, belt covers etc.
Corrosion and Anti-corrosion:
A vehicle body exposed to corrosion through out its life and because of the load carrying structure determines the service life of the vehicle, it is essential that it should be properly protected against such effects.
There are three types of vehicle body corrosion.
1. Chemical corrosion
2. Electro chemical corrosion
3. Fretting corrosion
Anti-Corrosion treatment
Corrosion can be prevented by three basic methods
1. Improve materials.
2. Protective coating.
3. Correct design.
Selection of paint:
The colors for finishing the vehicle should be based on scientific principles of colouring, which can be briefly outlined as follows,
- All shades are based on three colours i.e Blue, yellow and red. The basic concepts of colour technology are as follows,
VALUE: Value can be measured by the mixture of a natural grey, value corresponds to the concept of brightness or darkness of colours
INTENSITY: Intensity is defined by the mixture of white in the colours, where full colour has no white mixed with it.
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