Methods of improvement of hardness and/or efficiency of cutters with changeable cutting speeds along the cutting tooth edge length

Abstract

The article shows that one of the drawbacks of most cutters is uneven cutting speeds along the cutting tooth edge length resulting from the peculiarities of their construction and operation. Due to uneven cutting speeds cutting teeth edges of the cutters are worn irregularly which generally reduces operating parameters of cutters. This article provides data on improvement of hardness and/or efficiency of using cutters with changeable cutting speeds along the cutting tooth edge length which are based on the provision of changeable parameters of the cutting edge properties depending on the current operational functions. For proposed cutters with changeable properties along the length of the cutting teeth edge length there have been developed principles of improvement of hardness and/or efficiency on the grounds of function-oriented approach. There was made analysis of peculiarities of improvement of hardness and efficiency of cutters` work on the basis of these principles and there were given general recommendations on the operation of the proposed cutters.