title: ÐÐ¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÐ²ÐµÑÐ»ÐµÐ½Ð¸Ñ ÑÑÑÐ´Ð½Ð¾Ð¾Ð±ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÐ¼ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Improving the efficiency of the drilling process of hard-to-machine materials
Creators: name: ÐÑÑÐµÐ½ÐºÐ¾, ÐÐµÐ½Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ°ÑÐ¾ÑÑ Ð¿Ð¾ÑÑÐ½ÐµÐ²ÑÐµ
ÐÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ°Ñ ÑÑÑÑÐ¶ÐºÐ°
Ð¡Ð²ÐµÑÐ»ÐµÐ½Ð¸Ðµ
ÐÐ²ÑÐ¾ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ
ÑÑÑÐ´Ð½Ð¾Ð¾Ð±ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÐ¼ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ
ÐºÑÑÑÑÑÐ¸Ð¹ Ð¼Ð¾Ð¼ÐµÐ½Ñ
Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° ÑÐ°ÑÑÐµÑÐ°
ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ
Ð·Ð°Ð³Ð»ÑÑÐºÐ°
hard-to-machine materials
torque
calculation method
manufacturing process
plug

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description: The subject of the graduate qualification work is Â«Improving the efficiency of the drilling process of hard-to-machine materialsÂ». This work is devoted to studying physical processes in drilling hard-to-machine materials, the analysis of their impact on the machining efficiency and the identification of the ways to increase this efficiency. It has been shown that ensuring stable chip breaking is one of the main conditions for efficient and productive materials drilling. Chip breaking methods were investigated; it was substantiated that in conditions of changing manufacturing environment it is advisable to use drilling with tool oscillations (vibration drilling). Moreover, drilling with the application of self-oscillations (relaxation) advantageously differs from other methods because it does not need any external energy sources and lets to create frequency and amplitude adjustable devices, which, after preliminary setting, can independently adjust to new conditions during machining. After analysis of various prototype devices a perspective design of the device for relaxation drilling was chosen and substantiation of using the axial piston pump as one of its main units was made. Calculation method for this type of pump was also developed, which allows to evaluate the range of hole diameters sufficient for creating self-oscillations at the design stage. In addition, the influence on this range of the main design parameters of the pump, machined and instrumental materials was analyzed, theoretical relationships were obtained. As an example of using the device, the manufacturing process of the Â«PlugÂ» part was developed using universal and CNC machine tools and a set of technological documentation was formalized.