Up to this time, the wood working in technological education has been trend to the study of the production.
On the other side, they haye been said "The theoretical experimental study is important."
But, it has not been practiced.
As the merit of the wood working in technical education is the production and it includes educational significations, the theoretical, experimental study is necessary to keep pace with the productional study.
On this case, I take the orthogonal cutting that is the most basic wood cutting in wood engineering and show it's theory.
Also I show the experimental equipment of the orthogonal cuttting and oscill ograms of the cutting resistance.
We can observe the cutting type, the cutting resistance, the cutting mchanism and so on through the oscillogram.