焼入れ軸とフランジの塑性流動結合特性に及ぼす成形代および歯先接触角の影響 [in Japanese] Effects of Forming Depth and Contact Angle on Plastic Flow Joining of Quenched Shaft and Flange [in Japanese]
Access this Article
Search this Article
A shaft of quenched steel and a thick flange of mild steel were successfully joined by forming a hole in the flange with serrations provided on the shaft. The effects of forming depth and contact angle on deformation during joining and on the strength of the joint obtained are discussed in this paper. The filling-up of serrations formed in the flange increased with increasing contact angle and forming depth. However, very large contact angles caused fracture and lowered the filling-up ratio. Thus, the optimum contact angle that maximized the filling-up ratio without fracture was determined, which was approximately 30° at a forming depth of 0.5mm. Under this condition, the hardness of the formed serrations and the joining force were also higher. A good correlation was found between the filling-up ratio and the joining strength as long as no cracking occurred during joining.
- Journal of the JSTP
Journal of the JSTP 49(573), 1000-1004, 2008-10-25
The Japan Society for Technology of Plasticity