The Modeling of Combined Stress State of the Drilling Bit Body during the Selective Press Fitting of Picks in it

Nikolay V. Polezhaev; Maksim D. Khoroshevskiy; Mark G. Kristal; Vladimir V. Preis

doi:10.4028/www.scientific.net/MSF.973.61

Paper Titles

An Investigation of Ingots Teemed under Different Thermal and Physical Solidification Conditions and the Analysis of Metal Quality of the Hollow Forgings Produced
p.36

Briquettes Made from the Chips after Abrasive Grinding of Rolled High-Alloy Steels as an Advanced Charge Material Solution
p.41

Structuring Control of Facial Layer during Edge Cutting Machining
p.51

Formation of the Surface Layer Properties in Edge Cutting Machining of Stainless and Heat-Resistant Steels
p.56

The Modeling of Combined Stress State of the Drilling Bit Body during the Selective Press Fitting of Picks in it
p.61

Formation of Residual Stresses in the Internal Combustion Engine Sleeves after Abrasive Processing and Operation
p.65

Physical Principles for Forming the Microgeometry of the Surface Layer in the Steel Edge Cutting Machining
p.69

The Quality of a Surface Received by Processing the End of a Large Diameter Pipe with the Use of a Single-Row Cylindrical Brush
p.75

Investigation of the Influence of the Thermal Conductivity of the Buildup on Tool Durability
p.80

HomeMaterials Science ForumMaterials Science Forum Vol. 973The Modeling of Combined Stress State of the...

The Modeling of Combined Stress State of the Drilling Bit Body during the Selective Press Fitting of Picks in it

Abstract:

A new mathematical model is proposed where breaking down of exploited drilling bits is considered to be a consequence of an unbalanced spreading of charges in drilling bit body, which is caused by the difference in interference values of obstruction in each pair “body-pick”. Fulfilled modeling allow to make a definition of complicated stress-deformed state of the drilling collet’ body with different number of teeth and different combinations of hole sizes and sizes of teeth using different materials for further production.

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Periodical:

Materials Science Forum (Volume 973)

Pages:

61-64

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.973.61

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Online since:

November 2019

Authors:

Nikolay V. Polezhaev*, Maksim D. Khoroshevskiy, Mark G. Kristal, Vladimir V. Preis

Keywords:

Drilling Bit, Finite-Element Model, Selective Press, Solid-State Model, Stress-Deformed State

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