Current Status of Precision Stamping Technology

With the unsustainability of low-cost human resources and the continuous development of science and technology in my country, the automated and intelligent manufacturing of precision stamping parts will inevitably become an important development direction for modern manufacturing, and intelligent molds will also develop rapidly accordingly. Using intelligent molds to produce products can further improve product quality and production efficiency, save materials, and achieve automated production and green manufacturing. The environmental protection of the mold manufacturing industry promotes the development of environmentally friendly production and processes in the precision stamping parts industry.

Therefore, although the total number of intelligent molds is still small, it represents a new direction for mold technology development and will play an increasingly important role in the industry's product structure adjustment and development mode transformation. The successful development of intelligent molds will inevitably have a strong driving effect on the rapid improvement of the entire mold industry; therefore, prioritizing the development of intelligent molds in the industry's development is particularly necessary. The adoption of higher-end molds in the precision stamping parts industry is also imperative.

The current development status of automotive precision stamping parts technology in my country is reflected in the following aspects:

1. High degree of automation in the production of outer body panels. Outer body panels have high surface quality requirements and can only be produced through automated production. While my country's automotive exterior body panel production isn't high-speed stamping, its automation level is still quite high. This is mainly reflected in the widespread adoption of automated line stamping. Line stamping typically consists of four presses forming a complete closed stamping line, with robots automatically feeding and retrieving parts. The production cycle is approximately 10-15 times/min, typically consisting of a first double-action 1630T press and subsequent 800T presses.

2. Floor and roof panels, as inner body panels, are produced automatically or semi-automatically. The production method for these parts is mainly determined by the batch size, generally using automated or semi-automated production. Except for joint ventures, domestic companies have generally started with semi-automated stamping production. Semi-automated stamping places specific requirements on the presses. First, the press table needs to be large; second, due to the relatively high forming force, the first press needs to be 2000T or 2400T, and subsequent presses need to be 1000T or 1250T or higher.

3. Chassis frame components are mostly manufactured by parts suppliers and then shipped to the OEM.