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This forging method is aiming to achieve less CO2 emission and become more green-friendly.
By forging the outer helical tooth, we can suggest cost reduction, material yield improvement.

i.e.)
Hobbing allowance is reduced to 0.5mm each side by forging the tooth, the forged material weight will be less approx. 0.7 ~ 0.9kg, and the hobbing chips weight is reduced 50%.
The forged tooth contains the continuous metal fiber flow, which is said to have 20~30% more strength compared to fully-machined tooth.

These parts are formed by energy saving method, cold forging.

With deep hollow shape, we can suggest a shaft achieving high cooling performance.
Machining process can be also reduced by near-net shape, forged surface finish.

Capable with maximum ~400mm long shaft for hollow forming.

Inner spline (inside bottomed hollow) can be formed by cold forging in shaft products.

Process reduced by forming both inner and outer spline at once.
Capable with spline and datum by machining or cold forging.

Flange / gear can be formed on shaft with under-cut area, uniformed parts suggestion of the shaft and gear (flange).

Advantages of uniformed parts are:
Improve forged material yield
Reduce machining allowance
Omit assembly process

Bossed shape case is used in planetary units.
Base plate and boss is uniformed by forging (instead of welding), which is strong enough to apply for parts receiving high torque.