Should a slightly dented subframe be replaced?

1 Answers
DylanLee
07/29/25 9:35am
Data testing can be performed, and replacement is necessary if the data is abnormal. Below is relevant information about subframes: 1. Definition: A subframe, also known as an auxiliary frame, is not a complete frame but rather a bracket that supports the front and rear axles and suspension. It connects the axles and suspension to the "main frame" and is commonly referred to as a "subframe." The purpose of the subframe is to block vibrations and noise, reducing their direct entry into the cabin. Therefore, subframes are mostly found in luxury cars and off-road vehicles, and some vehicles even have subframes for the engine. 2. Research Progress: A type of subframe assembly includes the subframe and connecting brackets. The connecting brackets have a top surface and side surfaces, with the top surface connected below the subframe support points and the side surfaces connected to the inner side of the side flanges of the frame longitudinal beams. By positioning the connecting brackets on the side flanges of the frame longitudinal beams, the area with the highest stress—the upper flange of the frame longitudinal beam—is avoided, thereby preventing cracking issues at riveting holes caused by stress concentration and significantly improving vehicle safety.
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