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| Cylinder block
and liner honing |
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| Cylinder body |
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| Hatch-cross and valley depth to retain oil |
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In order to achieve the desired
surface roughness of cylinder bore,rough boring,semi-finish
boring,rough honing,finish honing is required.In recent years,extensive
research on new technology for cylinder bore honing have been
conducted.This new technology are widely used and spread.This special
pattern has been made includes creating various”cross
hatch”or”sine curve”cratch patterns on
the finished bores.(The depth and angle of the cratch
pattern is vary depend upon superabrasive grit size,workpiece
material,operating speeds and feeds.)This pattern are thought to be
beneficial in the retaining of oil in the engine cylinder bores.
Advantages：
- Excellent surface wear
resistance.
- Good oil retaintivity
property
- Close contact in between
piston and liner.
- Powerful compression
- Long life of compression.
Process
In order to obtain special texture of slots and platforms,rough
honing,finish honing,and plateau honing are needed.Their functions are
as follows:
Rough honing:Getting the correct geometry of the bores,as well as the
desired surface roughness for the next process.
Finish honing:Getting the basic platforms and symmetrical
intercross texture.
Plateau honing:Generate a surface texture that has the benefits of a
smooth surface and the benefits of a rough surface
At present,Our honing stones for plateau honing can meet the engine
manufacturer’s criteria,and successfully support
world famous honing machines such as
Nagel,Gehring,Nissin,WMW,etc.Following is an example of a honed
platform and intercross texture with our honing stones for a motor
company. |
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Rz
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Rpk
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Rk
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Rvk
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Mr1
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Mr2
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Mmax
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(3-8)wm
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(0-0.35)wm
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(0.3-1.2)wm
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(1.0-3.0)wm
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(0.0-8.0)%
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(70-90)%
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(0.0-10)wm
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| Honing
Stones dimention ：150*4*6 |
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