April 20, 2024

How Laser Technology is Revolutionizing Automation

Introduction to Lasers in Automation

Laser automationhave transformed various manufacturing and industrial processes since their invention in the 1960s. By concentrating and directing beams of light, lasers offer precise control at the microscopic level. This precision enables lasers to cut, weld, mark and measure with unparalleled accuracy. As a result, lasers have become instrumental in modern automation across many industries.

Laser Cutting Automation

One of the most common applications of lasers in industrial automation is laser cutting. Laser cutters use high-powered laser beams to cut through materials often just as quickly as mechanized cutting tools but with greater precision. This allows intricate patterns and details to be cut more easily from sheet materials like steel, aluminum and plastics. Many factory floors now rely on laser cutters for tasks that would be difficult or impossible with other technologies. Automotive manufacturers use laser cutters to shape body panels, while appliance makers precision cut steel and aluminum parts for products. The aerospace industry also takes advantage of laser cutters for lightweight composite materials. Additionally, laser cutters can easily switch between cutting different materials, eliminating setup time and reducing waste – key benefits for automated production.

Laser Welding Automation

Another laser application revolutionizing industrial joining is laser welding. Through precisely focused laser beams, metal and other materials can be welded together without making direct contact. This non-contact welding process results in strong, high-quality welds and allows for welding of dissimilar materials. Laser welding systems can work much faster than traditional welding and produce consistent, reproducible results time after time. The automotive and appliance industries have integrated laser welding into their assembly lines to quickly bond chassis components, frames and exterior body panels. Laser welding is also being used for building electric vehicle batteries by automating the connection of hundreds of tiny welding spots. Its non-contact nature makes laser welding well-suited for robotics and eliminating hazards in any automated manufacturing environment.

Laser Marking and Engraving Automation

Laser marking and micro-engraving are essential processes for product identification and traceability throughout manufacturing and the supply chain. Industrial laser marking systems use high-powered pulsed laser beams to permanently etch barcodes, logos, text and other designs onto materials without contact. Automated laser marking allows manufacturers to apply varied codes to each individual part coming off the line for full traceability. Identification becomes integral to the production process. Industries like electronics, medical devices andaerospace rely on laser marking for traceability requirements. Beyond codes,companies also laser mark decorative logos, designs and instructions onto product enclosures and exterior parts. This automated identification enables advanced quality control, inventory management and recall capabilities down the road.

Laser-Guided Automation and Robotics

To further automate complex manufacturing workflows, lasers play an important role in machine vision, robotics and other forms of laser-guided automation. Industrial robots rely on laser-based sensors, cameras and guidance systems for applications like material handling, assembly and quality inspection. For example, lasers can scan workpieces and provide coordinate data to robots so they precisely locate and manipulate parts. Materials handling robots use laser triangulation for detecting object edges and dimensions in real-time. In paint and coating shops, laser-scanning robots efficiently apply thin coatings and spot-weld vehicle bodies. Laser machine vision guides pick-and-place robots for electronics assembly. These laser-guided automation technologies minimize human involvement while improving throughput, repeatability, safety and quality control. Overall, the integration of lasers enables more sophisticated autonomous robotics solutions across industry.

Laser-Based Automated Monitoring and Inspection

Non-contact laser profilers, sensors and machine vision systems allow fully automated inspection and quality control in manufacturing. High-resolution laser line probes and 3D laser scanners rapidly capture shape measurements without touching a product. Laser displacement sensors monitor dimensional accuracy and surface finish in real-time. Micro laser triangulation can detect micron-level defects on silicon wafers or circuit boards moving down an assembly line. Automated optical inspection robots use laser illumination and digital imaging for high-speed defect detection of parts, packages and labels. Laser spectroscopy analyzes chemical composition through laser-induced plasma light signatures. These non-destructive techniques integrate seamlessly into production monitoring for 100% inspection rates. They deliver quality assurance without slowing down automated processes. Laser automated inspection captures high-fidelity measurements for traceability and generates pass/fail results to guide automated sorting.


From Laser automation cutting and welding to marking, inspection and robotics, laser technology has revolutionized industrial automation by enhancing precision, repeatability and flexibility. Integrating lasers allows manufacturers to minimize human touchpoints, reduce defects and waste, while improving throughput, costs and quality control. Laser automation technologies will continue to advance, enabling higher levels of autonomous, real-time response throughout global supply chains. Overall, lasers empower industry’s digital transformation by leveraging automated, data-driven insights to benefit both production and product quality.


  1. Source: Coherent Market Insights, Public sources, Desk research
  2. We have leveraged AI tools to mine information and compile it