English
Italian
French
German
Spanish
Portuguese
Armenian
Bengali
Bulgarian
Catalan
Czech
Danish
Dutch
Esperanto
Estonian
Filipino
Finnish
Frisian
Greek
Hebrew
Hungarian
Icelandic
Indonesian
Irish
Japanese
Kannada
Korean
Lithuanian
Malagasy
Malayalam
Maltese
Mongolian
Norwegian
Persian
Polish
Russian
Scottish Gaelic
Slovak
Slovenian
Swedish
Tajik
Thai
Ukrainian
In the fields of industrial equipment, electronic communication, new energy, etc., customized metal enclosures (customized metal cabinets) are the core components for protecting precision parts. Their performance depends directly on the precision of sheet metal bending and welding technology. In this article, we will analyze in depth how sheet metal processing technology creates durable metal enclosures with high strength and high precision, and provide selection guidelines for enterprises.
Part I: Sheet metal bending technology - the cornerstone of precision metal enclosures
From the design drawing to the finished product, the manufacture of precision metal enclosures involves the following key steps:
- Material selection: Cold rolled steel, stainless steel or aluminum alloy sheet thickness and ductility to match the application scenario;
- CNC Bending Programming: Bending angle control with ±0.1mm accuracy is achieved through computer numerical control (CNC) equipment;
- Rebound Compensation: Calculate the amount of rebound for different metal characteristics to ensure bending dimensional stability.
Case: An industrial automation company optimized the design of bending radius to improve the impact resistance of its heavy-duty metal enclosures by 30%.
1.2 Influence of bending techniques on the properties of metal enclosures
- Structural strength: the three-dimensional frame formed by continuous bending can withstand higher mechanical loads;
- Heat dissipation optimization: the bending process creates a ventilation slot design to avoid overheating of electronic components;
- Cost control: integrated bending reduces the number of welding nodes and lowers the cost of custom metal enclosure fabrication.
Part II: Welding Techniques - Ensuring Airtightness and Durability of Metal Enclosures
2.1 Comparison of Mainstream Welding Processes
Welding type
TIG welding
Applicable
Stainless steel/aluminum alloy housing
Advantages (for metal enclosures)
Beautiful, spatter-free weld seams for precision electronic devices
Laser cutting welding
Ultra-thin sheet (under 0.5mm)
Small heat affected zone to avoid metal deformation
resistance welding
TIG welding
Fast and suitable for standardized metal enclosures
Customer story: Intelligent medical device manufacturer from the U.S. achieves zero corrosion of its IP67-rated metal enclosures in wet environments through laser welding technology.
2.2 Welding quality inspection standards
- Airtightness testing: helium mass spectrometry leak detection method to ensure waterproof and dustproof performance;
- Non-destructive testing: X-ray detection of internal defects in welds;
- Salt spray test: verifying the life of corrosion-resistant metal enclosures in harsh environments.
Part III: Customized Metal Enclosure Selection Guide
3.1 How to choose a sheet metal processing service provider?
- Technical Capability Verification: Suppliers are required to provide samples of sheet metal enclosure prototyping to test the bending accuracy and welding strength;
- Certification standards: ISO 9001 certification ensures the quality control process of industrial-grade metal enclosures;
- Flexible production: vendors that support small batch customization requirements are better suited for fast iterative projects.
3.2 Cost optimization strategies
- Design Simplification: Reduced cost of low-volume metal enclosure manufacturing by minimizing shaped bends and complex welded structures;
- Material Substitution: Replacement of stainless steel with galvanized steel for non-corrosive environments for economic metal enclosures;
- Standardized modules: use of common size panels to shorten lead times.
Part IV: Industry Application Cases
- 5G communication base station: EMI-shielded metal enclosures are utilized to ensure electromagnetic shielding effectiveness through multi-point welding;
- New energy charging piles: weatherproof metal enclosures molded by bending process to withstand extreme temperatures ranging from -40℃ to 85℃;
- Industrial Robotics: Compact high-density metal enclosures with customized bending angles for space-optimized wiring.
Contact our team of sheet metal fabrication experts
Whether you are a start-up company in need of small-batch custom metal enclosures or a manufacturer in pursuit of mass-production metal enclosure solutions, Supro MFG’s technical engineering specialists in sheet metal bending and welding technology work in active co-innovation to provide you with Reliability is guaranteed.
Contact our team of engineers today for a free design and true factory price quote proposal!
