Common Mistakes to Avoid with Corner Aluminum Extrusions

Corner aluminum extrusions offer a versatile and durable solution for various architectural, engineering, and industrial applications. However, improper handling or installation can lead to costly mistakes and compromise the performance of these extrusions. Here are some common pitfalls to avoid:

Improper Cutting

Accurate cutting is crucial to ensure proper fit and function. Using the wrong tools or techniques can result in burrs, uneven cuts, or damage to the extrusion’s surface. Invest in a high-quality miter saw or band saw specifically designed for cutting aluminum extrusions. Use sharp blades and follow the manufacturer’s instructions carefully.

Overtightening Connections

Overtightening fasteners can crush the extrusion’s corners or strip the threads. Use the appropriate torque wrench and follow the recommended tightening specifications. Avoid using excessive force, and check the tightness periodically to prevent loosening.

Inadequate Corrosion Protection

Aluminum extrusions are susceptible to corrosion, especially in outdoor environments. Ensure proper surface preparation by thoroughly cleaning the extrusion and applying a high-quality primer and paint system. Choose corrosion-resistant fasteners and sealants to prevent premature deterioration.

Misalignment of Extrusions

Improper alignment can lead to uneven loads and structural instability. Use precision measuring tools to ensure that the extrusions are aligned correctly. Check both horizontal and vertical alignment to prevent any potential warping or bowing.

Incorrect Joint Design

Weak or improperly designed joints can compromise the strength and longevity of the structure. Consider the load requirements and choose the appropriate joint type, such as butt joints, miter joints, or interlocking joints. Use high-strength adhesives or mechanical fasteners to ensure a secure fit.

Lack of Finishing

Leaving aluminum extrusions unfinished can expose them to the elements and lead to premature deterioration. Apply a durable finish that matches the intended environment, whether it’s anodizing, powder coating, or painting. This will enhance the extrusion’s aesthetics and protect it from corrosion.

Failure to Consider Thermal Expansion

Aluminum expands and contracts with temperature changes. When joining extrusions, allow for sufficient movement by using slotted holes or expansion joints. This will prevent deformation or buckling due to thermal stress.

Neglecting Maintenance

Regular maintenance is essential to maintain the performance and longevity of corner aluminum extrusions. Inspect the extrusions periodically for any signs of damage, corrosion, or loose connections. Clean and reapply protective finishes as needed to ensure optimal functionality.