Szukana fraza: [Słowa kluczowe = "kinematics of cutting"]

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Szukana fraza: [Słowa kluczowe = "kinematics of cutting"]

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- Archive of Mechanical Engineering (1)
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- Hrytsay, Ihor (1)
  
  Stupnytskyy, Vadym (1)
  
  Topchii, Vladyslav (1)
Słowa kluczowe
- cutting process simulation (1)
  
  gear hobbing (1)
  
  kinematics of cutting (1)
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- Artykuły / Articles (1)

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Improved method of gear hobbing computer aided simulation

Ihor Hrytsay Vadym Stupnytskyy Vladyslav Topchii

Archive of Mechanical Engineering | 2019 | vol. 66 | No 4 | 475-494 | DOI: 10.24425/ame.2019.131358

Słowa kluczowe gear hobbing cutting process simulation kinematics of cutting

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Abstrakt

Simulation studies of the hobbing process kinematics can effectively improve the accuracy of the machined gears. The parameters of the cut-off layers constitute the basis for predicting the cutting forces and the workpiece stress-strain state. Usually applied methods for simulation of the hobbing process are based on simplified cutting schemes. Therefore, there are significant differences between the simulated parameters and the real ones. A new method of hobbing process modeling is described in the article. The proposed method is more appropriate, since the algorithm for the momentary transition surfaces formation and computer simulation of the 3D chip cutting sections are based on the results of hobbing cutting processes kinematics and on rheological analysis of the hob cutting process formation. The hobbing process is nonstationary due to the changes in the intensity of plastic strain of the material. The total cutting force is represented as a function of two time-variable parameters, such as the chip’s 3D parameters and the chip thickness ratio depending on the parameters of the machined layer.

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Bibliografia

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Autorzy i Afiliacje

Ihor Hrytsay

Vadym Stupnytskyy

Vladyslav Topchii

Department of Mechanical Engineering Technologies, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, Lviv, Ukraine.