The study of deep holes accuracy and surface roughness after gun drilling

Kirsanov, S. V.; Babaev, A. S.

doi:10.1109/meacs.2014.6986950

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Verification of calculations of the shear stresses concentration zone made by FEM was performed in LLC «Promdiesel» (Barnaul, Russia) [14]. GDCCS with d=2.05h5 mm produced by Botek (Germany) according to our drawing were used for the verification.…”

Section: Resultsmentioning

confidence: 99%

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Strength and Stiffness Calculation of Small Diameter Gun Drills

Babaev

Tukhfatullin

Kim

2016

KEM

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The results of strength and stiffness calculations of gun drills with steel and cemented carbide stems are presented. Four cross-sections of gun drills are examined and recommendation for selection of proper shape in terms of strength and stiffness is given. Finite element modeling of gun drills shown that the highest stress concentration is at the bottom of the V-shaped flute in the middle of the length of the stem. Gun drill testing under production conditions confirmed the results of finite element modeling.

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Section: Resultsmentioning

confidence: 99%

“…Gun drills with diameter less than 5mm are characterized by low strength and stiffness and, consequently, low tool life and productivity. These characteristics can be increased by manufacturing stem from cemented carbide and rational choice of the cross-section of supply channel [1].…”

Section: Introductionmentioning

confidence: 99%

Strength and Stiffness Calculation of Small Diameter Gun Drills

Babaev

Tukhfatullin

Kim

2016

KEM

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Research into the Impact of Spindle Speed and Feed Rate Changes on the Life of a Deep-Drilling Technology Tool

et al. 2022

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The drilling process in real production places ever-increasing demands on the length and accuracy of the holes made. The drilling of holes beyond a length-to-diameter ratio of 5–10 is called deep drilling. The aim of the research was to determine in detail the deep-drilling process input conditions, their impact on the stability of the cutting process and the degree to which the output requirements were achieved. The focus of the analysis was on how the monitored technological and physical impacts translate into achieving the required gun-drill life and the quality and dimensional accuracy of deep holes, as well as their overall impact on tool life. Based on the analysis, tests were conducted to verify the impact of individual parameters on tool life. The obtained results were then statistically evaluated and optimized. Drawing on the evaluated experimental results, solutions and procedures were proposed and implemented in the environment of a real operation. This research obtained the optimal values of the frequency of rotation and displacement to ensure maximum tool life while maintaining the efficiency of the production of drilled parts. At the same time, based on the research, a methodology and recommendations for deep-drilling technology were developed.

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The study of deep holes accuracy and surface roughness after gun drilling

Cited by 2 publications

References 4 publications

Strength and Stiffness Calculation of Small Diameter Gun Drills

Strength and Stiffness Calculation of Small Diameter Gun Drills

Research into the Impact of Spindle Speed and Feed Rate Changes on the Life of a Deep-Drilling Technology Tool

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