World's First Full-Size Integral Body Die-Casting Part Offlined in LK Group's Facility
TapTechNews August 14th news, the world's first full-size integral body integrated die-casting part was offlined ceremoniously at the die-casting machine production base of LK Group (Ningbo Hangzhou Bay New Area) last Wednesday, which also means that the 10,000-ton double injection integral chassis technology has entered the mass production stage.
Besides LK Group, the supporting enterprises also include SAECHEM New Materials Group, Lizhong Group, Shichuang Technology, Guangxing Technology, Jinlin Machinery (Xinlin Mold), Donglin Precision, Paiteng Mold, Guangcheng Mold, Zhuni Mold Frame, Guangzhou Dongre, Xinyu Technology, Saiyajie Vacuum, Lishi Technology, Xinda'er, etc.
TapTechNews found that LK Group and Chery Automobile jointly held the World's First Ultra 10,000-Ton Double Injection Molding Process and Technology Signing Ceremony on December 25, 2023, and proposed the double injection process and its equipment technology.
According to the official introduction, the technical team has made technological breakthroughs in three aspects. Firstly, in view of the problem of the huge volume of parts and the overly long flow distance, the team finally selected the aluminum alloy material route with high silicon through strict tests and screenings to ensure the high fluidity of the alloy material.
This die-casting machine adopts the double injection technology, which combines the single mold-locking mechanism and the double parallel injection system, ingeniously solving a series of problems caused by the limit of the filling distance in traditional die-casting. This technology not only indicates that the super-large integrated die-casting structural parts of the vehicle body are expected to achieve a significant weight reduction of 20%, but also establishes a phased goal of reducing the cost to 33-35 US dollars/kg.
It is claimed that the asynchronous simulation technology analysis of the double-barrel using the casting mold flow software shows that the double injection deviation within 20 milliseconds does not affect the confluence of the casting molding. Through repeated tests and adjustments in the early stage, the technical team successfully controlled the synchronization deviation of the 800-ton double injection die-casting machine within the target range, and the deviation of the 13000T double injection die-casting machine also reached the target value, thus ensuring the stability and consistency of the injection process.
In addition, Shichuang Technology has specially developed an asynchronous simulation module for the double-barrel on the basis of its mold flow analysis software Zhizhu Chaoyun, providing strong support for the early mold flow analysis using the double injection process and ensuring the accuracy and feasibility of the mold design and process parameters.