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Selecting the Right Fiber Laser Cutter for Texas Stainless Steel Fabrication: A Business Guide

2025-03-31 15:55:21

by Luminarycnc

First, review the common types of stainless steel, the basic classification of austenitic, martensitic, ferritic, duplex stainless steel and so on. Considering the different performance of these types in cutting, such as cutting parameters, gas selection, common problems, etc., as well as the more concerned about the quality of the cut, such as oxidation, burrs, etc., we have made the following statistics.

▶ Austenitic stainless steel (304/316/321)

Material characteristics: strong corrosion resistance, non-magnetic, high ductility.
Fiber Laser Cutting machine features: As the material is controlled by oxidation, the need for nitrogen protection to prevent blackening of the cut surface; the use of medium-high power cutting more effective, the proposed fiber laser cutting machine is 3-6kw, cutting effect of the cut surface silver white, no oxide layer.

▶ Martensitic stainless steel (420/440C)

Material characteristics: high hardness, wear-resistant (high carbon content), magnetic
Fiber Laser Cutting machine features: the material is controlled by the heat-affected zone, the need to reduce the cutting speed to reduce carbide precipitation; it is recommended that the use of oxygen to improve the cutting efficiency, slag removal after cutting.
 

Fiber laser cutting machine cutting 304 stainless steel finished product | home kitchenware class


▶ Ferritic stainless steel (430/409)

Material characteristics: magnetic, high temperature oxidation resistance (high chromium content, no nickel)
Fiber Laser Cutting machine features: pay attention to the burr problem, the need to increase air pressure (nitrogen) and adjust the focus position; cutting machine power recommended 1-3kw, mainly suitable for thin plate cutting.



 Fiber laser cutting machine meets all your cutting needs
 

▶ Duplex stainless steel (2205/2507)

Material characteristics: high strength and corrosion resistance (austenite + ferrite mixed structure)
Fiber Laser Cutting machine characteristics: because of the high material, generally use high-power laser, recommended 4kw or more, choose a mixture of nitrogen and helium will die the risk of oxidation.

▶ Precipitation hardening stainless steel (17-4PH/630)

Material characteristics: ultra-high strength (strengthened by heat treatment)
Fiber Laser Cutting machine characteristics: the material requires fine tuning of the parameters, the general use of low-speed and low-frequency pulse mode to avoid thermal deformation, the need after cutting is to re-solid solution treatment.


Stainless steel stamping parts--Hardware
 

▶ Fiber laser cutting machine on the stainless steel industry applications and selection of material recommendations

 
Industry Applications and Material Selection Suggestions Recommended material Fiber Laser Cutter Requirements
Food medical equipment 316L austenitic stainless steel (corrosion resistance, easy to clean) Nitrogen protection + mirror cutting process to ensure pollution-free cutting surface.
Architectural decoration/Kitchen equipment 304/430 stainless steel (cost-effective) high-speed cutting (more than 20m/min) to match the complex pattern processing.
Automobile exhaust system 409 ferritic stainless steel (high temperature oxidation resistance) medium power (3kW) with oxygen assisted, taking into account the efficiency and cost.
Marine engineering Duplex Stainless Steel 2507 (chlorine ion corrosion resistance) high power (6kW) + mixed gas, to avoid intergranular corrosion of the cut surface.



 

▶  Common Problems and Solutions

⭕ Cutting austenitic stainless steel edge blackening
Reason: Insufficient purity of nitrogen gas or too low gas pressure.
Solution: Upgrade the gas purity to 99.99% or more, and adjust the gas pressure to 1.5-2MPa.

⭕Decrease in hardness after cutting martensitic stainless steel
Reason: excessive tempering in the heat-affected zone.
Solution: Adopt pulse cutting mode and reduce the heat input of continuous laser.

⭕ Deformation of thin plate (<1mm) cutting
Optimization: Use high frequency low duty cycle pulses with honeycomb table to reduce heat accumulation.

Want to know more about cutting stainless steel with fiber laser cutting machine, click below to contact us!!
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Selecting the Right Fiber Laser Cutter for Texas Stainless Steel Fabrication: A Business Guide

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