What is the introduction of laser cutting?

Laser cutting is a CNC cutting process in which a high-powered laser is used to cut through materials.

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In this process, a high-density light beam is created by stimulating lasing material with an electrical discharge, within an enclosed container. Optics are used to focus the created laser beam onto the workpiece, effectively cutting it by melting, vaporizing, or burning through it. The movement of the laser beam is controlled using CNC technology.

Types of Laser Cutters

There are three main types of lasers used in laser cutters. They are CO2, Nd, and Nd: Yag lasers.

Laser Type CO2 Nd Nd: Yag Advantages &#; High energy efficiency
&#; High power output ratio &#; High energy &#; High power output ratio
&#; Can be used to cut thicker material Disadvantages &#; Not appropriate for thick metal sheets &#; Low repetition efficiency &#; Less cost-effective than plasma cutters for such material Applications This laser is great for boring, engraving, and cutting relatively thin material This laser is mostly used for engraving and boring This laser is good for manufacturing and medical industry

Laser Cutting Materials

Laser cutting can be used to cut a variety of materials such as paper, wood, metal, rock, and many others, but it is widely applied in material removal for sheet metal fabrication of materials such as:

• Aluminum
• Steel
• Stainless steel
• Copper and other metals

In general, laser cutters are great for cutting relatively thin sheet metal with maximum thicknesses of 6 mm for aluminium and 15 mm for steel. They typically have a tolerance of 0.2 to 0.1 mm.

Benefits and Limitations of Laser Cutting

Because of the high precision of laser cutting, minimal finishing is required for laser cut parts. Laser systems create a small heat-affected zone, reducing the need for post-processing heat treatment.

Compared to other cutting processes, laser cutting is more precise and versatile (material wise) than plasma cutting but less than waterjet cutting.

Laser cutting is the most widely used because of its material versatility, precision, and ability to carry out both cutting and engraving (a process that cannot be done with waterjet). It is also cheaper than waterjet cutting.

Cost of Laser Cutting

The cost of Laser Cutting can vary widely depending on the type of laser and on the chosen material. The easiest way to have an idea about the price of your sheet metal fabrication project, is to upload your CAD file to get a free and instant quote.

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What is laser cutting?

Laser cutting is a high precision CNC thermal process that uses a high-power laser beam to cut, melt, or burn a material sheet. It uses a focussed beam of light to cut and etch sheet material to the design specification. Ideal for a variety of material types (including metals, wood and polymers), it is capable of producing complicated parts without using a custom-designed tool.

The process is suitable for both one-off jobs and low, medium volume production due to its high repeatability. Laser cutting is particularly useful for the fabrication of metals (steel, brass, aluminum, or nickel). It has become a firm favorite in the production of medical products owing to its high precision, reliability, and resultant smooth finishes.

In contrast to CNC machining, laser cutting works with sheet material, producing shapes and forms no more profound than 10mm (depending on the material type).

Learn about the different types of sheet metal fabrication &#;

In this article, the key differences between the main types of laser cutting are introduced, and the characteristics of the process are discussed. By the end, you will have an overview of the basic principles of the technology and how these relate to its key benefits and limitations.

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