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Practical Application of Laser Cutting Machines in Sheet Metal Processing
Published on:
2025-08-20
Laser cutting machines have become the "core equipment" in sheet metal processing, with technological advantages covering all dimensions such as precision, efficiency, cost, and flexibility. They are especially irreplaceable in the processing of complex parts and mass production of thin plates. With the increase in fiber laser power and the integration of intelligent technologies, their application boundaries will continue to expand, driving the sheet metal industry toward high-end manufacturing transformation.
Laser cutting machines have achieved core applications of high precision, high efficiency, and high flexibility in sheet metal processing. Their technical advantages and practical value are reflected in the following aspects:
1. Technical Principles and Core Advantages
Non-contact Processing
The laser beam generates temperatures of tens of thousands of degrees through focusing, causing the material to melt and vaporize instantly. With the assistance of auxiliary gases (such as nitrogen or oxygen) to blow away molten slag, a cut seam is formed. This process involves no mechanical stress, avoiding material deformation caused by traditional stamping and shearing. Precision and Quality
1. Narrow cut seam: as small as 0.1mm, reducing material waste.
2. Smooth cut edge: no secondary grinding required, directly meeting welding or assembly requirements.
3. Small heat-affected zone: minimal edge deformation, especially suitable for precision parts processing.
Flexible Production
1. CNC programming: directly import drawings through CAD/CAM software, supporting cutting of arbitrarily complex shapes.
2. Quick changeover: no need to change molds, suitable for small batch and multi-variety orders, shortening product development cycles.
2. Practical Application Scenarios
Complex Parts Processing
Case: Sheet metal parts such as elevator door panels and electrical control cabinets require cutting of special-shaped holes and arc grooves with complex structures. Laser cutting can form in one step with precision up to ±0.05mm, avoiding the multi-process combination required by traditional stamping.
Data: When cutting 8mm carbon steel plates, the speed can reach 80m/min, which is 2-3 times the efficiency of plasma cutting.
Mass Production of Thin Plates
Application: For 0.5-6mm thick plates such as home appliance shells and kitchenware panels, laser cutting can replace the combination of punch press and shearing machine, reducing processes and labor costs.
Advantage: No mold investment, single-piece cost reduced by more than 30%, suitable for customized production.
Processing of New Materials and High-Reflectivity Materials
Breakthrough: Through pulse perforation technology, it can cut stainless steel within 16mm, carbon steel within 22mm, and even some high-reflectivity materials such as copper and aluminum.
Innovation: Using fiber lasers, energy density is increased by 50%, solving the low absorption rate problem of traditional CO₂ lasers on high-reflectivity materials.
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