3D laser cutting machines are primarily used for processing body sheet metal components or custom-shaped tube fittings. These workpieces typically measure around 1mm in thickness, with the thicker ones rarely exceeding 3mm. Thus, a standard 1KW 3D laser cutting machine is usually sufficient to meet the requirements.

But with the improvement of the product process requirements in various industries, more and more thick plate workpieces begin to try to use 3D laser cutting, and achieve very good results.

Today we will focus on the application of 3D laser cutting machine in cutting metal corrugated pipes for tunnels and culverts.

project context ：

This metal corrugated pipe is extensively used in tunnel and culvert construction projects, typically with thicknesses of 8mm, 10mm, or 12mm. The pipe features multiple holes (circular, square, or waist holes) and edges that require cutting. The conventional manufacturing process involves pre-cutting these holes before rolling the sheet metal into shape. However, the pre-cut holes often deform significantly after rolling, frequently necessitating on-site rework. This not only increases labor intensity but also prolongs project timelines.

Project challenges:

The customer's workpiece is long and thick, it is difficult to process after forming with traditional machine tools, and the ordinary 3D laser cutting machine has not enough travel, load and cutting technology and components.

In the field of planar laser cutting, the industry has now achieved stable processing of workpieces exceeding 50mm in thickness. Many professionals, including industry peers, might assume that 3D laser cutting of such thickness poses no significant challenges—simply requiring larger lasers. However, practical experience reveals this is far more complex than initially perceived. The cutting process for 3D curved surfaces on thick plates fundamentally differs from planar laser cutting and conventional 3D laser systems. Specialized height regulators and cutting heads are required, robotic arm load capacities must be enhanced, and cutting positions demand meticulous calibration.

Current project status:

To ensure optimal processing quality and efficiency for clients, we conducted two months of testing involving cutting nearly 1 ton of material, replacing seven different cutting heads, and adjusting the height regulator four times. Through these efforts, we successfully developed our proprietary 3D laser thick plate cutting technology, creating a specialized 3KW 3D laser cutting machine with its corresponding process. The machine has now been successfully delivered to the client for operational use.

The following is the customer processing site: (Mobile workbench is being installed)