Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Nagatoshi Okabe"'
Publikováno v:
Materials Science Forum. 943:34-42
This study focus on the diameter-enlarged ratio, which is an important parameter for evaluating the workability of a partial diameter-enlarged process. Moreover, the study attempts to explain the influence of the fillet radius of the die end on the f
Publikováno v:
Materials Science Forum. 943:43-47
The purpose of this research is to determine the state inside the material using finite-element analysis and to improve the performance of a rotary-draw bending forming by clarifying the mechanism of wrinkle generation. An analytical model of rotatio
Publikováno v:
Materials Science Forum. 943:26-33
The hardness test, Charpy impact test, and axial expansion experiment were performed on a medium carbon steel S35C specimen typically used for shaft materials after first subjecting it to quenching and tempering heat treatment under different heating
Publikováno v:
Key Engineering Materials. :473-478
We have proposed a new cold processing method to enlarge the diameter of a short section of a metal shaft using a combination of a cyclic bending load and an axial compressive load that is lower than the yield stress of the sample material. We call t
Publikováno v:
Procedia Materials Science. 3:83-89
This study experimentally and numerically investigated the damage extension of a brittle monolithic silicon carbide plate in response to the high speed impact of a projectile. An out-of-plane impact of a silicon nitride sphere with a velocity of 50 t
Publikováno v:
Procedia Materials Science. 3:1499-1504
We proposed a new cold processing method to partially enlarge the diameter of a shaft with a combination of a cyclic bending load and an axial compressive load that is lower than the yield stress of sample material. We call this cold processing metho
Publikováno v:
Applied Mechanics and Materials. 473:30-34
We have proposed a new cold processing method to form a partial diameter-enlargement part in a hollow shaft. Using the processing method, the diameter-enlargement part with a large deformation is formed easily by applying compressive stress at yield
Publikováno v:
Applied Mechanics and Materials. 473:35-38
This paper proposes a new near-net-shape working method to partially enlarge and control shaft's cross section through a metal mold. This study investigates the changes in the sectional area of shafts during the processing under various processing co
Publikováno v:
Journal of the Society of Materials Science, Japan. 61:530-536
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 35:291-300
Ceramic balls have been used as components of devices, such as those found in high-pressure pumps for automobiles and industrial machines. In the backflow valve, for example, a ceramic ball is in contact with a conical surface. Fractures of ceramic b