Sheet metal bending processing technology
🛠️ Core Principle
Apply pressure to the sheet metal using convex and concave molds, inducing plastic deformation in the V-shaped groove to achieve the desired bending angle.
🔑 Key Elements
Bending Machine & Mold
Core equipment; mold shape determines bending angle and geometry.
Bending Force
Required force depends on material thickness, strength, and bending length.
Bending Radius
Recommended: 0.8-1.2× material thickness (smaller radii risk cracking).
Bending Coefficient/K-Factor
Critical parameter for calculating unfolded dimensions and accurate blanking.
Springback
Material's elastic recovery after bending; compensated via over-bending or bottoming.
🔄 Main Bending Methods
Air Bending ➜ Most versatile and widely used.
Bottom Bending ➜ High precision, effective springback control.
Coining Bending ➜ Highest accuracy, requires significant pressure.
📈 Process Steps
Program based on material and technical specs.
Install suitable upper/lower molds.
Position & clamp sheet accurately.
Execute bend and inspect first piece.
Mass produce with quality monitoring.
✅ Process Advantages
High efficiency for mass production
Capable of complex geometries
High material utilization
Excellent strength & aesthetics
Sheet metal bending processing products
🌐 Application Fields
📟 Electronic & Electrical Industry
Chassis, cabinets, enclosures
Heat sinks, shielding cover
Distribution & junction boxes
🚗 Automotive Industry
Body structural parts & brackets
Chassis components
Exhaust system parts
✈️ Aerospace
Aircraft internal structures
Avionics enclosures
Lightweight support frames
🏠 Home Appliance Industry
AC, washer outer casings
Oven & microwave cavities
Structural brackets for appliances
📡 Communication Equipmen
Base station housings & internal brackets
Server rack
Antenna reflectors
🏥 Medical Devices
Equipment enclosures & carts
Surgical instrument trays
Medical bed frames & accessories
