Precision Filter Welding Solution: YAG Laser Welding Technology
Zero Deformation · High Sealing · Micron-Level Precision Control
Industry Pain Points
Traditional welding methods such as argon arc welding and resistance welding often lead to deformation, burn-through, and thermal damage when welding ultra-thin metal filter cores. These issues result in:
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Reduced filter core sealing performance
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Deviations in filtration accuracy
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Difficulty in ensuring high production yield
Innovative Solution
The YAG laser welding machine, with its three core advantages of high energy density, micron-level spot size, and precise heat input control, offers zero-contact, non-deformation precision welding for metal filter elements, including stainless steel and titanium alloys. It is perfectly suited for precision filter structures with aperture sizes above 0.1mm.
Technical Advantages Analysis
| Features | Value for Filter Element Welding |
|---|---|
| Ø0.1-0.5mm ultra-fine spot | Precisely avoids filter holes; controllable weld width prevents clogging of filter channels |
| Millisecond-level energy control | Heat-affected zone <0.1mm; prevents mesh wire melting and burn-through |
| Non-contact welding | No mechanical stress; protects fragile filter structures; increases yield by 40%+ |
| CCD visual positioning system | Automatically identifies filter edges; achieves precise seam alignment in multi-layer mesh welding (supports 0.05mm accuracy) |
Typical Application Scenarios
✅ Fuel filter metal mesh cores – Multi-layer stainless steel mesh ring seam sealing welding with high pressure resistance and no leakage
✅ Medical-grade titanium alloy filter elements – Biocompatible welds with no impurities, meeting GMP certification standards
✅ Chemical high-pressure filter cartridges – Airtight welding of 0.3mm ultra-thin mesh to flanges
✅ Microporous sintered filter element end caps – Dissimilar material welding between metal mesh and support rings
Process Comparison Data
| Indicators | Traditional Resistance Welding | YAG Laser Welding | Improved Efficiency |
|---|---|---|---|
| Thermal deformation | >0.2mm | <0.03mm | Reduced by 85% |
| Weld seam width | 1.2-2mm | 0.1-0.3mm | Material loss reduced by 70% |
| Production cycle | 15 seconds/piece | 8 seconds/piece | Efficiency increased by 47% |
| Airtight qualification rate | 82% | 99.6% | Scrap cost reduced by 90% |
