Contribution to plough shares and chisels useful life optimization

Plough shares and chisels are quite expensive and they represent typical spare parts in agriculture with high consumption. For technical practice it is very important to take into account the optimal choice and utilization of these parts from point of minimal costs and useful optimal life. In the paper the authors solve this problem giving priority to an economical approach using cost analysis. An example shows practical application of the developed methodology. Implementation of this methodology in the agriculture can save spare parts, raw material and money