Temper Rolling Of Sheet Steel

Temper passing is performed to improve flatness minimize the tendency to stretch strain and flute.

Temper rolling of sheet steel.

Temper rolling with relatively small deformation usually around 1 forms the final mechanical properties planarity and surface microrelief of sheet steel. It will also ensure your steel obtains your desired surface texture and mechanical properties. A temper mill is a steel sheet or steel plate processing line composed of a horizontal pass cold rolling mill stand entry and exit conveyor tables and upstream and downstream equipment depending on the design and nature of the processing system. It is typically done after the annealing process or hot roll after pickling to improve flatness minimize any tendency to stretch strain and flute and create a specific surface texture.

The metal forming method at a temper mill involves rolling the sheets of steel through what is known as a cold reducing process or temper pass. Temper rolling increases the yield point to 30 50 meganewtons per sq m 3 5 kilograms force per sq mm reducing the possibility of formation of flow lines which mar the surface of products on the metal during cold stamping. Temper rolling is necessary for sheet metal that is to undergo cold forging with deep drawing such as sheet steel intended for making motor vehicle body parts so called auto steel and sheet iron. The thickness of the steel is typically reduced by 0 5 percent to 3 percent and can be used to change the gauge and inconsistencies of the steel.