Unmachined part of an exhaust manifold, exhaust gas manifold, mounting structure for a mounting of an exhaust manifold, and method for production of an exhaust manifold

摘要

The present invention relates to a blank (5) of an exhaust manifold (3), with a base body (7) and at least one of the base body (7), a flange (9) for fastening the exhaust gas manifold (3) to a cylinder head of an internal combustion engine, wherein, on the flange (9) at least a predetermined threaded point is provided. In this case, it is provided that the flange at the point of the threaded point has a thickening (15).