ACCURACY INCREASE IN DRILLING HOLES BY TWIST BITS BY WAY OF CONTROL OVER DYNAMIC COMPONENTS OF PROCESS

There has been ascertained that the inherent stability of process is absent always, namely the lateral vibrations of bit initiate the kinematic changes of cutting angles, whereby the accucy is impaired in combination with the axial vibrations. The diagnostic technique of causes and correction of drilling errors has been developed. The manners of drilling and the equipment have been introduced in the Joint-Stock Company "Bulat", in the Ural Motor-Works, in the Polyus enterprise. The drilling accuracy has been risen, the period of production tests of equipment has been decreased 2 - 3 timesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio