Laser cutting machines are important for manufacturers and construction workers who need to be able to manipulate metal into different shapes. However, sometimes these machines can have problems that need to be addressed quickly in order to keep production moving. In this post we will explain some of the most common fiber laser cutting problems and their solutions.

Gas Contamination

Gas contamination is a common issue when it comes to operating a fiber laser cutting machine. Using contaminated or impure gas can result in incomplete cuts and affect the overall quality of your finished product. To ensure that your cuts are precise and clean, make sure you are using pure, uncontaminated gas in your machine. One way to prevent contamination is to regularly clean and maintain your gas lines and storage tanks. It is also important to only purchase gas from reputable suppliers and properly seal any gas containers when not in use. Taking these steps will help ensure that your fiber laser operates at its best and produces high-quality cuts. 

Feed Rate

If you're experiencing incomplete cuts on your fiber laser, it may be because the feed rate is set too high. On a fiber laser, the feed rate refers to the speed at which the material is moved under the laser beam. If this speed is too fast, it can prevent the laser from cutting all the way through the material. To fix this issue, adjust the feed rate to a slower speed and also increase the power setting on the laser. This will allow for a deeper and more complete cut.

Material Thickness

Another common problem you could run into is that using a metal that is too thin can result in incomplete or uneven cuts, while using a metal that is too thick can cause the laser to overheat and potentially damage the machine. It's important to consider the capabilities of your particular laser and choose a sheet metal thickness that will work well with it. Consulting with a professional or doing some research on recommended thicknesses for your specific equipment can also help ensure successful cutting results. Overall, taking the time to select the right sheet metal for your project can save you from costly mistakes and improve the quality of your final product.


Let’s recap on a few things you can check if you're having trouble with incomplete cuts. First, make sure you're using pure gas in your machine. Contamination is one of the most common causes of this problem. Second, adjust your feed rate and power settings. If these are too high or too low respectively, it can cause incomplete cuts. Finally, choose the right sheet metal for your project. Choosing a metal that's too thin or thick can also lead to incomplete and inconsistent cuts. If you've tried all of these solutions and are still having trouble, talk with us at Pioneer Machine Sales. We'd be happy to help you troubleshoot any other problems you're experiencing with your fiber laser cutter.