可能原因：

【1】喷嘴选择过大；

【2】切割气压过大引起过烧；

【3】切割速度过慢引起过烧或过快导致切割不充分；

解决方案：

【1】更换小口径合适喷嘴，举例16mm碳钢亮面切割使用1.4D喷嘴，20mm碳钢亮面切割使用1.6D喷嘴等；

【2】减少气压改善切割断面质量，一般亮面切割气压需求在0.6~0.8Bar之间。

【3】将切割速度调整至当前功率合适的范围（详见锐科激光连续激光器全系列切割参数表）

Possible Reason:

[1] Nozzle selection is too big;

[2] Excessive cutting pressure causes over-burning;

[3] The cutting speed is too slow, causing excessive burning or too fast, resulting in insufficient cutting;

Solution

[1] Replace small nozzle with suitable nozzle；

[2] Reduce the air pressure to have a brighter face of the cutting edge；

[3] Adjust the cutting speed to a suitable range for the current power；

可能原因：

【1】喷嘴选型过大；

【2】正向离焦不足；

【3】切割速度较慢；

解决方案：

【1】若要达到断面上下全亮，考虑更换小一号口径喷嘴，例如1.6D更换为1.4D；

【2】喷嘴口径不变的情况下，继续增加正向离焦；

【3】将切割速度调整至当前功率合适的范围（详见锐科激光连续激光器全系列切割参数表）

Possible Reason:

[1] Nozzle selection is too large;

[2] The defocus amount does not match;

[3] Slower cutting speed;

Solution:

[1] Replace small nozzle with suitable nozzle；

[2] With the nozzle diameter unchanged, continue to increase positive defocus;

[3] Adjust the cutting speed to a range suitable for the current power ；

可能原因：

【1】正向离焦过大，导致能量不集中形成滞后拖尾；

【2】气压过小导致切割拖尾形成拖曳线滞后产生挂渣；

【3】切割速度过快导致滞后；

解决方案：

【1】适当减小正向离焦，其余参数不变，观察底部挂渣情况；

【2】适当增加进给气压，可尝试最多增加至1Bar左右，观察情况；

【3】将切割速度调整至当前功率合适的范围（详见锐科激光连续激光器全系列切割参数表）

Possible Reason:

[1] The forward defocus is too large, causing the energy to be concentrated and forming a lagging tail;

[2] Air pressure feed error: Too small air pressure causes cutting tail to form drag line lag and slag;

[3]Too fast cutting speed leads to lag;

Solution:

[1] Reduce forward defocus appropriately, the remaining parameters remain unchanged, observe the slagging situation at the bottom;

[2] Increase the feed air pressure appropriately, try to increase it to about 1Bar at most, and observe the situation;

[3] Adjust the cutting speed to a range suitable for the current power ；

可能原因：

【1】负向离焦量过大,导致产生等离子体，产生蓝光并分层；

【2】喷嘴口径过小；

【3】气压进给过大 ；

解决方案：

【1】减小负向离焦，其余参数不变，观察现象；

【2】更换大一号口径的喷嘴；

【3】适当减小气压进给；

Possible Reason:

[1] The negative defocus amount is too large, resulting in plasma generation, blue light generation and layering

[2] Nozzle diameter is too small;

[3] Air pressure feed is too large;

Solution:

[1] Reduce negative defocus, the remaining parameters remain unchanged, observe the phenomenon;

[2] Replace the nozzles of the larger size;

[3] Reduce air pressure feed appropriately;

可能原因：

【1】喷嘴选择过小；

【2】负向离焦不足；

【3】气体压力不够，导致未充分切割。

解决方案：

【1】更换更大口径喷嘴，增加气体流量；

【2】继续增加负向离焦，使切割断面到达底部；

【3】继续增加气压；

Possible Reason:

[1] The nozzle selection is too small;

[2] Defocus amount mismatch;

[3] Insufficient gas pressure, resulting in insufficient cutting

Solution:

[1] Replace larger nozzles to increase gas flow;

[2] Continue to increase negative defocus to make the cutting section reach the bottom;

[3] Increase air pressure;

可能原因：

【1】在速度无法得到提升的情况下，激光器能量过于集中，与材料间反应过于剧烈；

【2】喷嘴选型口径过小，导致流量过小；

解决方案：

【1】保证峰值功率不变的情况下，适当降低频率和占空比，举例50mm不锈钢切割时，速度无法增加的情况下，考虑将频率调整至200Hz左右，占空比在55~65%之前，可得到较好切割效果；

【2】更换更大口径喷嘴，提高气体流量；

Possible Reason:

[1] When the speed cannot be increased, the laser energy is too concentrated and the reaction with the material is too violent;

[2] The nozzle selection diameter is too small, resulting in too little flow;

Solution:

[1] Under the condition that the peak power is constant, reduce the frequency and the duty cycle appropriately.

[2] Replace larger nozzles to increase gas flow;