I. Basic Functions of Sheet Metal Processing
1. Forming Complex Structures: Sheet metal processing can transform flat metal sheets into three-dimensional parts through processes such as bending and stretching. For example, automobile doors and chassis enclosures require multiple bending steps with an accuracy of ±0.1mm (see the Mechanical Engineering Handbook).
2. Efficient Material Utilization: Laser cutting technology enables nested layouts, reducing waste. For example, after nesting optimization, the utilization rate of 1.5mm thick stainless steel sheets can reach over 95% (data source: American Metalworking Association).
3. Rapid Prototyping: Compared to casting or injection molding, sheet metal processing has a shorter cycle time, with design to prototype production completed within 48 hours, making it suitable for product iteration.
II. Core Role in Industry Applications
1. Automotive Industry: 70% of body panels and chassis structural parts are produced using sheet metal processing (2022 report by the China Society of Automotive Engineers), balancing strength and lightweighting.
2. Electronic Equipment: Server cabinets and 5G base station casings rely on the electromagnetic shielding properties of sheet metal. Common thicknesses range from 0.8-2.0mm, with a tolerance of ±0.05mm.
3. New Energy: Photovoltaic racks and battery enclosures are made from galvanized sheet metal, offering a 20-year corrosion lifespan and costing 40% less than aluminum alloy.
III. Technical Advantages and Development Trends
1. Flexible Production: CNC punching machines can switch dies with a single click, allowing a single machine to process 200 different parts daily (example: TRUMPF TruPunch 5000).
2. Intelligent Upgrade: AI-powered scheduling systems have reduced the delivery cycle of traditional sheet metal factories from 7 days to 3 days (see the "Smart Manufacturing White Paper").
3. Green Manufacturing: Water jet cutting replaces traditional processes, reducing dust pollution and lowering energy consumption by 15% (data from the international environmental organization Clean Production).