Cold Rolling Process

Cold rolling is the process of giving shape to the soft raw materials by passing it through a set of rollers without applying heat (or, more technically, below recrystallization temperature). To make the raw material soft, annealing is normally done before this process. The components produced by this process have good surface finish and tighter tolerances. However, the component produced by this got work hardened and you should do normalizing before performing any further machining on it. Normally multiple rolling stations are used for gradual reduction of the cross sections.

Fig.1: Cold Rolling Process

 

Image source: Wiki
Level of surface finish achieved: 6.3-0.20 micro meters

Advantages:

–      Good surface finish

–      Good dimensional accuracy

–      Cost effective process

Disadvantages:

–      Cannot change the shape drastically.

–      Require annealing before rolling.

Ideal applications: Ideal for making strips, sheets, bar, rods.

Shibashis Ghosh

Hi, I am Shibashis, a blogger by passion and engineer by profession. I have written most of the articles for mechGuru.com. For more than a decades i am closely associated with the engineering design/manufacturing simulation technologies.
Disclaimer: I work for Altair. mechGuru.com is my personal blog. Although i have tried to put my neutral opinion while writing about different competitor's technologies, still i would like you to read the articles by keeping my background in mind.

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