激光切割钣金中的几大常见问题分析

激光切割钣金中的几大常见问题分析

Analysis of Several Common Problems in Laser Cutting of Sheet Metal

很多钣金行业的客户由于对激光切割机不太了解，所以在使用激光切割机切割板金的过程中，可能会遇到各种各样的问题，这些问题的出现常常会影响到激光切割机的正常运行以及切割质量。下面小编为大家分析下有哪些常见问题以及相应的解决办法。

Many customers in the sheet metal industry may not know enough about the laser cutting machine. Therefore, various problems may be encountered in the process of cutting the sheet metal using a laser cutting machine. These problems often affect the laser cutting machine. Normal operation and cutting quality. The following Xiao Bian analyzes what are the common problems and the corresponding solutions. 

1、激光切割碳钢时，加工件出现毛刺

1. When the laser cuts carbon steel, the workpiece has burrs

     一般造成加工件出现毛刺的原因和解决办法：（1）激光焦点位置发生偏移，做焦点位置测试，根据激光焦点的偏移量进行调整；（2）激光的输出功率不够，需要检查激光发生器的工作是否正常，如果正常，则观察激光控制按钮的输出数值是否正确，若不正确加以调整；（3）切割线速度太慢，需要在操作控制时加大线速度；（4）切割气体纯度不够，需要提供高质量的切割工作气体（5）机床运行时间过长出现的不稳定性，此时需要关机重新启动。

The causes and solutions for the burrs on the workpieces are as follows: (1) The focus position of the laser is shifted, and the focus position is tested and adjusted according to the offset of the laser focus; (2) The output power of the laser is not enough, and it is necessary to check the occurrence of laser light. Whether the work of the device is normal, if it is normal, observe whether the output value of the laser control button is correct, if it is not properly adjusted; (3) the cutting line speed is too slow, it is necessary to increase the line speed during the operation control; (4) cutting gas The purity is not enough, need to provide high-quality cutting working gas (5) The instability of the machine running time is too long, at this time need to shut down and restart.
 

2, The laser is not completely cut

    出现激光未完全切割的原因：（1）激光喷嘴的选择与加工板厚度不匹配，更换喷嘴或加工板；（2）激光切割线速度太快，需要操作控制降低线速度。

The reason why the laser is not completely cut is as follows: (1) The selection of the laser nozzle does not match the thickness of the processing plate, and the replacement of the nozzle or the processing plate; (2) The laser cutting line speed is too fast, and it is required to reduce the line speed by operation control.
 

3、切割低碳钢时出现非正常火花

3, Abnormal sparks when cutting mild steel

    出现这种情况会影响加工件的切割断面的光滑度和加工质量，此时在其他参数都正常的情况下，应考虑以下情况：（1）激光头喷嘴损耗严重，应及时更换喷嘴；（2）在无新喷嘴更换的情况下，应加大切割工作气体压力；（3）若喷嘴与激光头连接处螺纹松动，此时应立即暂停切割，检查激光头连接状态，重新上好螺纹。

This situation will affect the smoothness and the processing quality of the cutting section of the workpiece. At this time, the following conditions should be taken into consideration when other parameters are normal: (1) The nozzle of the laser head has serious loss and the nozzle should be replaced; (2) ) In the case of no new nozzle replacement, the cutting work gas pressure should be increased; (3) If the nozzle and the laser head connection thread loose, at this time should immediately suspend cutting, check the laser head connection status, re-apply thread.