Rolling

Add one script tag to your page:

<div data-alloyfyi="glossary" data-slug="rolling"></div>
<script src="https://cdn.jsdelivr.net/npm/alloyfyi-embed@1/dist/embed.min.js" defer></script>

Embed as an iframe:

<iframe src="https://alloyfyi.com/iframe/glossary/rolling/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>

Paste the URL in WordPress, Medium, or Ghost:

https://alloyfyi.com/ko/glossary/rolling/

Web Component:

<alloyfyi-glossary slug="rolling"></alloyfyi-glossary>
<script src="https://cdn.jsdelivr.net/npm/alloyfyi-embed@1/dist/embed.min.js" defer></script>

Manufacturing Processes

Definition

A metal forming process in which stock is passed through one or more pairs of rolls to reduce thickness, achieve a specific cross-section, or improve mechanical properties. Hot rolling and cold rolling are the two primary variants.

Detailed Explanation

Hot rolling is performed above the recrystallization temperature, producing plate, sheet, structural sections, and bars with refined grain structure and reduced porosity compared to the cast ingot. Cold rolling at room temperature introduces work hardening, improving strength and hardness while producing better surface finish and tighter dimensional tolerances suitable for automotive body panels and appliance components. Temper rolling (skin passing) is a light cold reduction applied to hot-rolled and annealed sheet to improve flatness and surface quality.