Laser marking machine drills deep holes|Deep-Hole Laser Marking Lens and Process

We have developed a special laser marking lens and process solution for this industry.Through high-precision optical design, the machine can focus on the inside wall of holes with diameters ranging from 0.5 to 50 mm. When combined with its own independently developed rotary positioning process, the machine can steadily complete the engraving of two-dimensional codes and text on complex structures such as blind holes and through holes.The system supports a variety of materials including stainless steel and aluminum alloy, and solves problems with traditional marking methods such as difficulty in positioning and blurry marks. It enables the implementation of traceability management for precision components.

Laser marking technology for the inner walls of deep holes is currently in hot demand in the field of precision manufacturing.Traditional laser marking machines were limited by the depth of field of their lenses and the design of their optical paths, and when processing holes with a depth-to-diameter ratio greater than 3: 1, they often had problems with focus and energy loss.In order to meet this challenge, the deep-hole marking lenses used in professional applications use multi-element lens designs, and dynamic compensation algorithms to ensure that the focus of the laser beam is accurate at different depths within the hole.The 30 ° -60 ° adjustable angle of incidence design of the lens, combined with a pneumatic rotating clamp, can meet the multi-angle marking requirements of various workpieces with different hole diameters.

In terms of processing schemes, we have developed an intelligent layering process. The system automatically divides the process into layers based on pre-set parameters for hole depth, and uses differentiated laser power and scanning speed for each layer, effectively avoiding excessive burning at the hole mouth and insufficient energy at the hole bottom.For reflective materials, a polarizing filter is used to improve the contrast of the markings.Actual testing has shown that the new process can achieve a recognition rate of 98 % or higher for QR codes engraved on the inner walls of 2 mm diameter holes 8 mm deep, compared to 62 % for conventional processes.

The accompanying database already includes more than 30 material parameter templates, so users need only input basic parameters such as the diameter of the hole, its depth, and the material, and the system can automatically generate the optimal path.For deep-hole processing, a 360 ° ring light system can be selected to allow for marking without blind spots.Currently, the solution has been successfully applied in the manufacture of medical device components and automobile fuel system parts. It has helped customers to reduce processing time by 40 % and increase the yield of good products by 25 %.

Common Problems with Deep Hole Laser Marking

The guidebook offers practical tips for troubleshooting common problems with the machine, such as adjusting the laser parameters, cleaning the optical path, and maintaining the cooling system.

Polarized Light to the Rescue

In industrial inspection and precision machining, this problem often causes data errors or blind spots.Using polarized light, the system can adjust the angle of the light source and the angle of the polarizing filter to reduce glare, thereby improving the accuracy of the inspection.These are suitable for mechanical processing, electronic component testing and other scenarios, and are simple to operate with controllable costs.

Cost Comparison between Deep Hole Etching and Conventional Electrochemical Etching

This paper compares the costs of deep hole marking with traditional electrochemical engraving, analyzing the differences in terms of equipment investment, consumables, and operating efficiency. It also uses real-world examples to show the applicability of each technique, helping manufacturing users to choose the most cost-effective solution.

Deep Hole QR Code Engraving on Stainless Steel

The article shares practical cases of laser marking on stainless steel, including QR code marking on deep holes. It also analyzes the critical parameters of laser power and scanning speed, and provides a free downloadable parameter setting table.The laser marking system is designed for use in industrial marking fields, and helps to increase marking efficiency and clarity, and solve the problem of marking deep holes.

Four Points to Remember When Maintaining a Laser Engraver

Regular maintenance of the inner wall of the laser marking machine directly affects the machine's lifespan and the quality of the markings.These four points cover cleaning, inspection, calibration, and replacement of consumables, and help customers reduce the frequency of machine failure and ensure that their equipment operates stably and efficiently.

Deep Hole Marking: A Comprehensive Guide

The guide provides practical solutions to common problems associated with deep-hole, small-diameter marking, including lens selection, parameter setting, and more. It covers laser lens selection, techniques for adjusting the focal length, and optimizing power parameters to help users resolve problems such as blurry markings on the inside of deep holes and poor equipment compatibility.

Three Solutions to the Problem of Marking the Interior of Deep Holes

Marking the walls of deep holes is a problem that has given many manufacturers headaches.Compare the three practical techniques of laser engraving, rotary inkjet printing, and mechanical embossing from the perspectives of clarity, cost, and difficulty of operation to help you find the best solution.The system is effective for both small and large production runs.

Choosing the Right Laser Marking Lens for Deep Hole Applications

When choosing a deep hole laser marking lens, five core parameters-the focal length, depth of field, and beam quality-are key to achieving the desired results.The book begins with practical needs, and analyzes how to select the appropriate lens based on the characteristics of the materials and the precision of the processing, in order to avoid the problems of low efficiency or equipment damage that result from the parameters not matching.