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Full profile welded frames are the most costly due to the additional welding and hand grinding that is required. In the past, full profile welded frames were specified to provide a seamless appearance. Today, frames are mitered on precision dies and can be face welded by SDI members to provide an appearance similar to full profile welded frames.
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Dec 22, 2017 · The advantages of face welded frames are less labor for welding, less grinding and finishing, the frames are easier to cut apart in case re-fabrication is required, and squaring and assembly of the frame is a quicker process. Even though the labor cost is reduced, the face welded frames provide similar strength and reliability as fully welded ...
Face welded frames are the default because fully welded frames would unnecessarily increase cost and lead time. Fully welded frames may be preferred for some specialty applications and you should consult with the manufacturer. Note: Full profile welded frames are also referred to as “fully welded” or “continuously welded”.
- Face weld
- Back weld
- Full profile weld
- Preparing to weld
- Finishing the weld
A face weld is when the miter joint between the head and jamb faces is welded on the exterior of the frame face. The weld will be ground, finished smooth, and prime painted so the seam does not show. The remaining elements of the frame profile such as the soffit, stops, and rabbets are not welded.
Back welding is weld placed on the miter of the frame where the head and jamb meet, but on the back side. This type of welding requires less grinding.
Also specified as “fully welded” or “continuously welded”, a full profile weld is when the joints between all elements of the head and jamb profiles are completely welded. The faces and returns may be welded internally or externally. All other frame elements shall be welded internally Institute Bend tabs on jamb to lock to head Clamp frame to tabl...
Properly setting up the frame before welding is critical for ensuring the finished frame is square. Lay the head and the two jambs down on a level work surface with the non-door side down. Assemble the frame and bend the tabs on the jamb to lock the jambs to the head. Follow the manufacturer’s instructions to determine which direction to bend the...
Grind until the weld is level with the face of the frame. File the edges smooth. Finish with a DA sander. The finishing process is complete, and the frame is ready to be painted. After it is painted, a proper weld will give the frame a seamless appearance. Final product has a seamless appearance The procedures described in this document are...
Jul 9, 2018 · The weld is done on both faces of the frame where the joints meet. The welds are then ground smoothed, cleaned, and dressed for a completed hollow metal frame. The welded hollow metal frames are slid into the opening and installed as one complete unit. Welded hollow metal frames are ideal for openings that are subject to medium and high ...
Oct 10, 2016 · Knock-down frames – also known as after-set drywall frames – are meant to be installed after the stud wall has been built and drywall applied. This type of frame comes in three pieces: the hinge jamb, the strike jamb, and the head. The frame head is installed first. Then each jamb is inserted into place and aligned to the head with tabs and ...
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Mar 2, 2023 · Choosing between welded frames and knock-down frames ultimately comes down to your specific project needs and budget. Welded frames are more durable and secure, but they come at a higher cost. Knock-down frames, on the other hand, are more affordable and easier to transport, but require assembly and may not be suitable for high-security ...
