RESEARCH OF THE STRESS-STRAIN STATE OF HOLES WITH NEW BROACH DESIGNS

Kassenov A.Zh. Abishev K.K. Yanyushkin A.S. Iskakova D.A. Absadykov B.N.
2022 National Academy of Sciences of the Republic of Kazakhstan

News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022 #2 Issue 452 89 - 103 pp.

The treatment of internal surfaces with increased requirements for accuracy and location is broaching – due to the high concentration of cutting teeth simultaneously involved in the work. The article presents the results of research work on the development of metal-cutting tools to improve the quality (physical and mechanical properties) and processing performance – the design of two-stage progressive and two-stage slotted broaches. The use of two-stage progressive broaching for processing cylindrical holes will increase processing productivity, reduce stretching and vibration forces, specific pressure on the teeth of the broach, the depth of the defective layer, thereby increasing its durability, the quality of processing cylindrical holes and physical and mechanical properties. The use of two-stage split broaching with a straight profile of single-cut slots with peripheral and lateral cutting allows you to reduce the number of cutting teeth, the length of the broach and the cost of tool material and increase economic efficiency. Thus, the use of the proposed broach designs improves the stress-strain state, increases processing productivity, reduces stretching and vibration forces, specific pressure on the teeth of the broach, and, consequently, increases the resistance of the broach, the quality of processing, savings of tool material and economic efficiency.

accuracy , broaching , efficiency , productivity , quality , stress-strain state , tool materials

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Toraighyrov University, Pavlodar, Kazakhstan
I.N. Ulyanova Chuvash State University, Chuvash, Cheboksary, Russian Federation
A.B. Bekturov Institute of Chemical Sciences, Almaty, Kazakhstan

Toraighyrov University
I.N. Ulyanova Chuvash State University
A.B. Bekturov Institute of Chemical Sciences

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