Wearing Tests of Tines of the Power Tillers (II)

Abstract

The results were as follows.
1. There exist three types of the wear characteristic curve on the wear of every tine in the wear of tines of the power tillers.
2. The relation between the wear of tine (W) and the cultivated depth (D), the vickers hardness of tine (carbon steel<700Hv) be able to express in the formula of
W=k⋅D³/Hv……(3)
3. In the field test, the flat knife tine wore away much more than the ordinary tine.