Gun-Drill Insertion in Drilling Deep Holes by Means of Multifunctional Machine Tools
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The drilling of deep holes by means of gun drills is investigated so as to establish the parameters of the guide hole and its production. The rate of change in the load on the tool is proportional to the active length of the primary cutting edge. Assessment of the smoothness of tool insertion on the basis of the rate of change in the load on the tool is proposed.
Keywords:gun drill guide hole drill insertion smooth insertion tool life primary cutting edge active length tool load
Financial support was provided by a grant intended to improve the competitiveness of Tomsk Polytechnic University.
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