Welding Truck Chassis Rails

Some trucks are designed with rivets in the bottom flange of the chassis rails.

Welding truck chassis rails. We use astm a656 grade 80 frame rails up to 36 in length. Welding on these frame rails carries a high risk factor since the heat treated frame rail material right next to the repair plate channel material might cause cracking due to the dissimilarity between the two. All rigid trucks have a body attached to the chassis rails. One concern with larger trucks is that their frame rails are sometimes heat treated to an exact specification to optimize their strength.

The body will rarely fit neatly directly onto the chassis rails and so the sub frame is needed to make a durable. A chassis absorbs a tremendous amount of stress that is distributed throughout the lateral beams and if the welding is not done correctly this can lead to chassis failure or wear and tear. Each type has different repair procedures. This specification covers high strength low alloy hot rolled structural steel plates to use in truck frames crane booms rail cars and similar applications.

International chassis are presently manufactured with frame rails of. We work with our customers to stretch shorten truck frames to their specific needs. Allowed when joining the chassis rails and of course the welding quality is particularly important. The body such as a tray concrete pump or tank is attached to a sub frame that in turn is attached to the chassis rails.

4 aum8101a modify or repair chassis frame and associated components single skin a single skin chassis consists of one channel pressing for each chassis rail. Another risk factor is welding the bottom flange to form a trailer chassis rail. High strength low alloy hsla steel 50 000 60 000 and 80 000 psi yield strength heat treated steel 110 000 and 120 000 psi yield strength. Whether a custom show winner or an oil field workhorse don t build your project on anything other than p g.

This significantly weakens the rails and makes them vulnerable to fatigue cracking if they carry heavy loads. The frame rail material can be determined by inspecting the frame and consulting. 2x big rig build off champions.