COMPARISON OF PLOUGHSHARE BOLTS HARDNESS AND COEFFICIENT OF FRICTION PROPERTIES
Keywords:Ploughshare Bolts, Hardness, Coefficient of Friction
Parts working in soil are exposed to effects of different abrasive particules in soil. Hardness of the particules that is mostly higher than tools’ causes the tool to be worn or broken. The tools are made in detachable form in order to prevent to be broken. The form is mostly made with bolts and nuts. One of agricultural tools working in soil, Ploughshare is joined to plough beam with bolts. The galvanised bolts are manufactured in form of countersunk head and DIN 604 standard. In our study, hardness (HB) and friction coefficient (µ) of six different plough bolts are examined. The average values of friction coefficient are determined as 0.20, 0.24, 0.16, 0.12, 0.15, 0.18 and Hardness’ 121, 137, 105, 100, 101, 111 respectively.
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