1 9 月, 2025
1. ✂️ Make Clean and Precise Cuts
The first step to a strong weld is a clean-cut profile. The cutting surface must be smooth and free of chips, breaks, or irregularities. Any roughness can create weak points where stress accumulates and cracks may later develop. Use sharp, high-quality saw blades and replace them regularly.
2. 📐 Master the 45-Degree Angle & Verticality
Accuracy in angle cutting is non-negotiable. Every piece must be cut at exactly 45 degrees, and the bottom surface of the profile must remain perfectly vertical. Even a slight deviation can lead to misalignment during welding, causing gaps or uneven pressure distribution along the joint. This is critical for achieving full seam integrity.
3. 📏 Control the Length Tolerance within ±1mm
Precision doesn’t stop at the angle—length matters too. Keep dimensional errors within ±1mm. Profiles that are too long or too short affect how well the corners meet during welding. Incorrect sizes cause internal stress in the welded joint, reducing its strength and possibly leading to failure under wind pressure or temperature changes.
✨ Pro Tip:
Always use calibrated equipment—digital saws, angle guides, and measuring tools. A small error during cutting can become a big problem after welding.
Strong corners don’t happen by accident. They come from precision, the right tools, and attention to detail. By following these steps, you’re not just making windows—you’re building trust and longevity into every installation. 🛠️✅