Is cutting oil used on sheet metal?

Cutting oil is generally not used on sheet metal for several important reasons. During the cutting process, metal shearing typically generates high temperatures, and the application of cutting oil can create a slippery surface that increases the risk of slippage or deviation from the intended cut. Additionally, using cutting oil can lead to complications like contamination and the need for excessive cleaning afterward.

Most sheet metal operations, especially those involving materials like aluminum, are better performed without the use of cutting oil because the oil could interfere with subsequent operations such as welding or the bonding of adhesive compounds. Tool lubrication in sheet metal work often relies on other methods such as using a cutting lubricant that can provide a protective layer without the negative effects associated with conventional cutting oils.

In this context, the focus on using cutting oil specifically for different materials is not applicable, as the reasons against its use apply universally across various types of sheet metal.