Jikuhidai® is a type of incremental plasticity processing that forms an enlarged area by applying axial compressive stress and repetitive alternating tensile and compressive stress through rotary bending of the shaft material.
Since the process enables large-diameter parts to be cold formed without machining, it has already been used for various parts as a resource-saving, energy-saving, and environmentally friendly type of processing.

Forming process

Benefits

(1) Low processing energy enables large plastic deformation.
(2) Cold processing provides an enlargement ratio of 1.6D and enlargement width of 1.0D relative to the material diameter.
(3) Minimal material waste
(4) Saves energy and resources

Processing sample

Gear pump shaft
拡大
Gear pump shaft
Intermediate shaft
拡大
Intermediate shaft
Ball screw
拡大
Ball screw

Hardness and microstructure of Jikuhidai products

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