Laser cutting aluminum plate operation guide

Why is laser cutting the best method for cutting aluminum plates?

There are many methods for cutting aluminum plates. Why is laser cutting the best choice besides manual cutting, CNC machine cutting, plasma cutting, and waterjet cutting? Let's explore the reasons behind it together.

Most Precise and Repeatable Precise Cut
As a computer controls the machine, the beam only follows the given instructions. For this reason, the precision remains the same for repeated work. You can easily produce the same outcome for each aluminum part.

Smooth Edges
The beam melts the metal edges very precisely, which leaves smooth edges. This way, it saves time and improves the quality while not requiring sanding or reworking.

Thickness Versatility
Laser cutting aluminum can handle thin, medium, and thick materials simultaneously. They can cut many different thick materials without changing parts. As a result, it supports deep penetration and offers flexibility for various jobs.

Automation and CAD Integration
Laser cutters can work with CAD software. Thanks to this automation, cutting is now quick and easy to repeat. You won’t need to use much muscle power to cut intricate forms.

Low Tooling and Maintenance Cost
Laser technology does not require many physical tools. It uses light instead of blades, so it reduces the risk of material damage and eliminates design errors. Consequently, it minimizes the cost and lowers the maintenance charges.

Safe and Clean Process
The laser cutting machine is quite flexible. It allows you to customize settings according to your material’s thickness and design requirements. Furthermore, it does not produce sparks or noise, and generates little waste. This makes it suitable for every approach, resulting in safe and clean cutting.

How to Cut Aluminum with a Laser Cutter: Step-by-Step
Aluminum is soft compared to other metals and easy to cut. You might be thinking it needs lower laser power as well. But in reality, aluminum typically needs more laser power. Because it has excellent thermal conductivity and high reflectivity, you must know the exact laser parameters before you begin the project. Here is the step-by-step process for cutting aluminum sheet metal with a laser cutting machine.

Step #1: Prepare the Aluminum Sheet
Firstly, you have to prepare your aluminum sheets for cutting. To do this, select the exact alloy and the thickness of your aluminum based on the project. Thereafter, clean the surface thoroughly if there are any contaminants. Place the sheet in the appropriate region of the laser bed. Don’t forget to secure the movement of the sheet.

Step #2: Set up the Laser Machine
Turn on the machine and check the laser parameters. With a 1000W laser cutter with a power range of 50-100%, use a 10-25m/min velocity for 1 mm thick aluminum. The speed varies with thickness; therefore, apply 6m/min for 2 mm and 2m/min for 3mm thickness material.

Step #3: Upload the Design
Insert your cutting plan from CAD software into the control panel of the laser machine. Before you start, make sure the file is lined up correctly with the aluminum sheet. Double-check the scale and position before proceeding.

Step #4: Perform a Test Cut
It is essential to perform a test cut before starting production. It lets you know whether the parameters are working well with the sheet. If they are not working well, then fix them up as needed.

Step #5: Execute the Final Cut
Once all your settings are perfect, start the cutting process. Observe the cutting process closely. If there is any emergency, turn off the machine. After the completion, allow the aluminum to cool before removing it safely from the laser bed.