The effectiveness of non-oxidizing cutting

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The effectiveness of clean-cut

Achieve greater accuracy, less material waste and faster turnaround times

Effective

Reduces cutting surface roughness due to its ability to resist oxidation

Quickly

Low cutting surface hardening, so easy to grind in the next step

Saving

Advantages for welding, painting and no need for post-processing

Breakthrough

Advantages in corrosion resistance and rust resistance

MAYBE YOU DON’T KNOW

ABOUT THE TERM
"CLEAN-CUT"

  • Clean cutting is a processing method that uses nitrogen, an inert gas, as an assisting gas when cutting stainless steel by laser processing, to obtain a more beautiful and careful finish than conventional laser cutting. It is also called “nitrogen separation” or “non-oxidation separation”. 
  • In conventional laser cutting, the surface is beautifully finished by polishing or chemical treatment after laser processing, but the disadvantage is that the construction time and cost are inevitably increased because finishing treatment is required in addition to laser processing. 
  • Clean cutting is a technology that can shorten the construction time and improve the quality. 
  • However, the actual situation such as whether it supports clean cutting and the level of finishing quality of clean cutting are different depending on the laser processing company you request, so it is important to check the characteristics of clean cutting and the contractor’s capabilities in advance. 
  • At Ueno Tekko, we are currently using this processing method.

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Types and characteristics of assist gases used for
clean cutting

Nitrogen gas is commonly used in clean cuts, but there are other gases used as assist gases.

Nitrogen (Nitrogen gas)

When performing clean cuts on stainless steel, the assist gas commonly used is nitrogen gas.
By using nitrogen gas, a beautiful cut surface with a metallic luster can be achieved without forming an oxide film. Therefore, it can not only be used while maintaining its aesthetics, but also facilitates the transition to the next process, such as welding work.
However, when cutting titanium, nitrogen gas nitriding must be considered.

Argon (Argon gas)

Like nitrogen, argon is also an inert gas and can be used as an assist gas for clean cutting.
Argon is said to be used when you want to clean cut titanium, which is nitrided with nitrogen gas. Because it costs more than nitrogen, nitrogen is often used when cutting stainless steel.