Automotive supplier Ningbo Xusheng Auto Technology Co. Ltd. of China issued the Final Acceptance Certificate to SMS group for a fully automatic closed-die forging line. Installed at the company’s Ningbo location in the province of Zhejiang, the forging line consists of an eccentric forging press and, as a pre-forming unit, an automatic forging roll. The press operates with a maximum press force of 25 MN. Ningbo Xusheng is using the line to produce aluminum chassis components, especially for electric vehicles. With support of specific simulation software, SMS group cooperated with Ningbo Xusheng to jointly develop the technology and the dies for the aluminum forging process.
The line produces high-quality aluminum forgings in maximum cycle times of 5 seconds. The forging roll pre-forms heated stock into a predetermined shape applying a nominal rolling force of 1,250 kN. The stock goes through several forging sequences in the fully automatic press. The components are precisely handled by an automatic electric walking-beam system. SMS group also developed a function-optimized spray lubrication system specifically for Ningbo Xusheng.