TRAGFORMIGT PLATDETALJ MED EN DJUPARE OCH EN GRUNDARE DEL, EXEMPELVIS ETT OLJETRAG FOR FORBRENNINGSMOTORER, SAMT SETT ATT DJUPPRESSA EN DYLIK DETALJ

摘要

A trough-shaped sheet metal (or metal-plastics laminate) component with a deeper and a shallower portion such as an oil pan for combustion engines and a method of deep- drawing it. In the transition area between the deeper and the shallower portion, the edge (9) between the bottom (4) of the shallower portion and its side walls (5) has a substantially shorter radius than the central portion (10). In deep-drawing the shallower portion and the transitional area, a pressure pad is used in the transitional area, where the material is locked in between die and pressure pad. Working then only takes place by bending in the edge areas.