Study of the Preliminary Elastic Deformation State of Workpieces Made of Non-ferrous Alloys During Drilling

Autor: Aleksandr S. Byshkin, Mikhail Razumov, Vadim Kuts
Rok vydání: 2021
Předmět:
Zdroj: Smart Innovation, Systems and Technologies ISBN: 9789811638435
DOI: 10.1007/978-981-16-3844-2_26
Popis: Drilling is one of the most common operations of fabrication processes. That's why increasing the efficiency of drilling is always an urgent task. To increase the efficiency of the drilling process, a method of drilling in a pre-stress-strained material was developed using the technological facilities of Southwest State University. The workpiece is subjected to elastic deformation by applying the load not exceeding the proportional limit of the workpiece material. After loading is finished, the workpiece dimensions remain the same. It has been shown that this drilling method decreases the axial component of cutting force in the range from 20 to 30%. This happens because the workpiece material enters the cutting area (namely, the primary deformation area) in a pre-deformed state, which contributes to the saturation of the crystal lattice of the processed metal with energy. This paper describes the modeling of the drilling process using workpieces made of non-ferrous alloys in a preliminary elastic deformation state. Speaking of the mechanism of this phenomenon, the study and description of changes in the preliminary elastic deformation region of the processed material at different drilling depths are the most relevant. This study was performed using the DEFORM-3D FEM environment, which showed that the elastic deformation state of the processed material is ensured in the cutting area throughout the whole drilling process.
Databáze: OpenAIRE
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