当使用激光切割加工不锈钢时，由于不锈钢含有10％至20％的铬，因此不锈钢和铁在切割过程中容易与氧气发生放热反应。 

When laser cutting is used to process stainless steel, stainless steel and iron are prone to exothermic reaction with oxygen in the cutting process because stainless steel contains 10% to 20% chromium.

铬的氧化物可防止氧气进入熔融材料的内部。 进入熔融层的氧气量减少，熔融层不完全氧化，反应减少，切割速度降低。 

The oxide of chromium prevents oxygen from entering the interior of the molten material. The amount of oxygen entering the molten layer is reduced, the molten layer is not completely oxidized, the reaction is reduced, and the cutting speed is reduced.

不锈钢的激光切割需要相对较高的加工技术。 激光切割精度高，速度快，热影响区小，不易变形。 高性价比和低处理成本。

Laser cutting of stainless steel requires relatively high processing technology. Laser cutting has the advantages of high precision, high speed, small heat affected zone and not easy to deform. High cost performance and low processing cost.

使用激光切割加工碳钢时，通常10mm以内的碳钢都能很好地进行氧气辅助熔融激光切割，并且缝隙也很窄。 钢板的厚度可小至0.1mm，对于低碳钢，几乎不考虑其热影响区。

 When using laser cutting to process carbon steel, generally, carbon steel within 10mm can be well cut by oxygen assisted melting laser, and the gap is also very narrow. The thickness of steel plate can be as small as 0.1mm. For low carbon steel, its heat affected zone is hardly considered.

碳钢切缝平整，清洁，可靠，垂直度好。 低碳钢中磷和硫的偏析区的存在将导致切削刃的溶解。 因此，具有杂质的优质钢的修整质量比热轧钢的修整质量要好。 稍高的碳含量可以略微改善碳钢的修边质量，但其热影响区已扩大。

The cutting seam of carbon steel is flat, clean, reliable and good perpendicularity. The existence of phosphorus and sulfur segregation zone in low carbon steel will lead to the dissolution of cutting edge. Therefore, the dressing quality of high-quality steel with impurities is better than that of hot-rolled steel. Slightly higher carbon content can slightly improve the trimming quality of carbon steel, but its heat affected zone has been expanded.

由于碳钢和不锈钢的性质不同，使用激光切割加工时的技术要求也大不相同。 因此，必须根据实际情况进行选择。 只有正确的操作方法，才能保证工作的顺利进行。

Due to the different properties of carbon steel and stainless steel, the technical requirements of laser cutting are also very different. Therefore, it must be selected according to the actual situation. Only the correct operation method can ensure the smooth progress of the work.