CNC Laser Cutting - Applications, DFM Guidelines & Detailed Explanation

Laser cutting is a precise process that uses a focused laser beam to cut materials into defined shapes and sizes. Computer Numerical Control (CNC) utilizes optics, an assist gas, and a guidance system to direct the laser beam along a programmed path. Laser cutting companies use the process for wide-ranging materials, including plastic, wood, steel, gemstones, and even glass. It produces intricate but precise pieces without the use of custom-design tooling.

Although the concept of laser cutting has existed since the 1970s, CNC laser cutting has recently come into the limelight. It has now become the most preferred process among laser cutting companies. Let us talk about CNC laser cutting in detail.

CNC laser cutting is a process used to cut metal sheets into the required shapes. This process is carried out by specialized CNC laser cutters in laser cutting companies. They follow a predefined path through computer numerical control.

Although other laser cutting techniques, such as plasma cutting, offer certain advantages, CNC laser cutting provides superior benefits. That is why it is the number one choice for well-established laser cutting companies, including Custiv. Let us take a look at some of the benefits of CNC laser cutting:

● Greater Accuracy and Precision When we talk about CNC laser cutting, accuracy and precision come hand-in-hand. As compared to other processes like plasma cutting or stainless-steel laser cutting, CNC laser cutting machines can execute the process more precisely. ● No Chance of Human Error With CNC laser cutting, CNC metal cutting companies employ specialized machines that execute diagonal, straight, and even curve cuts quite easily. Since all operations are programmed into the CNC machine, the process eliminates the risk of human error.

● Faster Processing and Less Production Time CNC laser cutting is easy and fast to process and includes minimum production time. Because you are programming everything in the machine, it also reduces the human workforce and makes the process simpler and faster. Unlike traditional laser cutting methods such as plasma cutting and sheet metal laser cutting, CNC laser cutting is a lot quicker, especially in the case of intricate cuts and designs. ● Quality “You get what you pay for” is a saying that perfectly defines the output of a CNC laser cutting frame. With CNC laser cutting, you achieve a higher level of precision and accuracy, which is nearly impossible to get from other laser cutting methods. CNC laser cutting allows you to be highly creative with your cuts, that too at a reduced cost. ● CNC Savings Compared to other laser cutting services, CNC laser cutting is relatively cost-effective, giving engineers a good enough reason to opt for this technique over others. The power consumption is also high in other laser cutting machines, making them a costlier option for laser cutting houses.

When we talk about laser cutting, there are majorly three varieties of laser cutting that laser cutting companies consider:

1. Fusion cutting, where you use nitrogen gas to eliminate the molten material in the kerf. In this process, both metals, as well as other fusible materials such as ceramics, can be cut down. The gas is blown through the kerf at pressures ranging from 2 to 20 bar.
2. Flame cutting, where the assist gas is oxygen. In this process, the appropriate part of the material to be cut is raised to ignition temperature by an oxy-fuel gas flame. Primarily, this purpose is used to separate shaping and separating steel components.
3. Remote cutting, where there is no assist gas; however, a laser beam is used to evaporate the molten material. Hence, it can be termed as a process of gas free separation technology.

Shapes that seem to be exceptional on paper might not be easy to execute with various manufacturing processes. No matter what manufacturing process you choose to perform laser operations within a laser cutting company, a list of design for manufacturing (DFM) guidelines needs to be on the top of your head.

Below, we discuss a few of these guidelines that hold a special place in the CNC laser cutting world. These are specific guidelines that laser cutting companies consider while working with sheet metal. ● Hole Sizes To achieve accurate precision, the diameter and radius of the hole should always be more than the sheet metal thickness. ● Hole Locations Another critical point is the hole location. The holes should be one thickness apart from the edge and two thicknesses away from each other. ● Bend Relief Once you apply pressure to the metal, it increases the chances of cracking. The bend reliefs play an essential role in preventing such scrapes and cracks in the sheet metal. ● Points and Corners Other areas to focus on are the points and corners of the sheet metal. Avoid unnecessary points and sharp corners that might hamper the end product.

CNC laser cutting is widely applied in: • Automotive components (chassis, brackets, panels) • Aerospace parts • Electronics and enclosures • Custom metal fabrication • Decorative and artistic metal designs Its precision, speed, and flexibility make it ideal for both mass production and custom projects.

Custiv is a trusted laser cutting company that provides precise and cost-effective CNC laser cutting solutions that will help you manage your casting needs at pocket-friendly rates. Explore Custiv’s CNC Laser cutting solutions at cost-effective rates. So, if you’re looking for a laser cutting company, we are here to help.

CNC laser cutting has revolutionized modern manufacturing, enabling precision, efficiency, and flexibility. By following DFM guidelines and choosing an experienced partner like Custiv, manufacturers can achieve optimal results, faster production, and reduced costs. For more such industry-specific content, visit our website.