Temper Rolling Of Sheet Steel

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 of sheet steel.

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. 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. This increases the density of the steel by reducing its overall thickness between usually 1 5 to 2 without allowing the steel to spread out while under pressure. 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.

The primary purpose of a temper mill is to improve the surface finish on steel products. Temper passing is performed to improve flatness minimize the tendency to stretch strain and flute. 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. Temper rolling is the process of lightly cold rolling sheet steel.