Compression forming of rotationally symmetrical blanks at 1100°C – 1250°C between counter-rotating moving generating tools, which reduce by rolling on the surface of the workpiece. Preferred process for manufacturing gear shafts with widely diverging geometrical cross-sections.
Machinery: Smeral wedge rolling
• Forming with undercuts is possible in this process
• Distortion after machining (hardening) is low
• Homogeneous grain flow through whole shaft