中空屈曲部品の製造方法及び中空屈曲部品

Japanese Patent JP7205409

B2

To provide a manufacturing method of a hollow bent component, in which weight saving can be achieved according to various design needs, while partially increasing a product plate thickness, and to provide a hollow bent component manufactured according to the same manufacturing method.SOLUTION: A manufacturing method of a hollow bent component includes the steps of: supporting a hollow stock Pm at a first position A while feeding it in a feeding direction; partially heating the hollow stock Pm at a portion to be heated using a heating device 12 disposed at a second position B; cooling the hollow stock Pm using a cooling device 13 disposed at a third position C; and applying shearing force to the portion to be heated of the hollow stock PM, by supporting the hollow stock Pm at a fourth position D and moving the support position in a two-dimensional direction or a three-dimensional direction. In the manufacturing method of the hollow bent component, the below Formula (1) is satisfied when a shearing angle of the hollow stock Pm formed after applying the shearing force in the feeding direction is θ (degrees), and an inclination angle of the heating device 12 and the cooling device 13 relative to the feeding direction is α (degrees). [Formula 1]SELECTED DRAWING: Figure 1

JPWO2010050460	Manufacturing method and manufacturing equipment for bent products
JP3617934	Manufacturing method of high wear resistant double layer bend tube

Atsushi Tomizawa
Uematsu Kazuo

JP2019134900A

January 17, 2023

July 22, 2019

Click for automatic bibliography generation  

Nippon Steel Corporation

B21D7/16; B21C37/15; B21D7/00; B21D51/02

JP61229425A
JP5611111A
JP63293394A

WO2011024741A1
WO2018186102A1

Sumio Tanai
Mitsuo Teramoto
Tomomasa Katsumata
Hiroshi Yamaguchi

Previous Patent: Wire harness protectors and wire harnesses with protectors

Next Patent: CONTROL SYSTEM FOR PRINTER