2第2章 (2/2)

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edirectlyatthelaseroutlet,donotdisassembleequipmentwithoutpermission,andkeephandsawayfromtheprocessingarea.Teachersalsodemonstratedstandardoperationsincludingpower-onself-inspection,emergencystopandpowercuthandlingincaseofabnormalities,helpingmeestablishtheworkingprincipleofstandardizedoperationandsafetypriority.
  

  

  
Meanwhile,teachersledustoreviewfundamentallasertheories,includingstimulatedemissionprincipleoflasergeneration,fourcorecharacteristicsoflaser:monochromaticity,coherence,highbrightnessandhighdirectivity,aswellasdifferencesamongvariouslasergenerators.Isystematicallydistinguishedtheteachingapplicationscenariosoffiberlasers,CO?lasersandultravioletlasers:fiberlasersaremainlyusedformetalmarkingandsmall-scalemetalprocessing;CO?lasersarewidelyadoptedforengravingandcuttingofnon-metallicmaterialssuchaswood,acrylicandleather;ultravioletlasersapplytoprecise,tracelessmicro-processing.Thesetheorieslaidasolidfoundationforsubsequentparameteradjustmentinpracticaltraining.
  

  

  
2BasicOperationTrainingofLaserSoftware
  

  

  
Learninglasercontrolsoftwarewasthecorepreliminaryworkofthetraining.Thecampustrainingadoptedmatchedcontrolsystemsforlasermarkingandcutting,whichsupportfunctionssuchasdrawingimport,graphicdrawing,textediting,parametersetting,layoutandsimulation.Understep-by-steptutoringfromteachers,ImasteredbasicoperationsincludingimportingsimpleCADdrawings,processingvectorgraphics,typesettingtexts,editingQRcodesandpatterns,positioningprocessingareasandcenteringlayouts.
  

  

  
Atthebeginningofpractice,Ifrequentlyencounteredproblemssuchasdistortedgraphicproportions,misplacedlayouts,incorrectparametersavingandabnormalsimulationpaths.Afterrepeateddrillsandtargetedcorrectionsfromteachers,Igraduallybecameproficientintheoperatinglogicofthesoftware.Icouldindependentlyfinishtrainingpatterndesign,dimensioncalibrationandpathoptimization,effectivelyavoidingmaterialwaste,processingdeviationandpatterndeformationinsubsequentproduction,andformedastandardizedhabitofsimulatingfirstbeforeformalprocessing.
  

  

  
3PracticalTrainingofLaserMarking
  

  

  
Lasermarkingwasthekeyprojectofthison-campustrainingandtheeasiestitemtogetstartedwiththemostpracticehours.Thefiberlasermarkingmachineinthetrainingcentercancarvetexts,patterns,studentnumbers,schoolbadgesandQRcodesonvariousmaterialsincludingstainlesssteel,aluminumnameplates,metalpendantsandplasticsheets.
  

  

  
Duringoperation,Ilearnedthecompletepower-onprocedure:switchonthemainpowersupply,startthewatercoolingsystem,activatethecontrolsystem,completefocusingcalibrationandredlightpositioning,adjustparameters,andfinallyconducttrialmarkingandformalprocessing.Throughextensivepractice,Igraspedtheadjustmentlogicoffivecoreparameters:laserpower,markingspeed,frequency,fillingspacingandfocusingheight.Higherpowerleadstodeeperengravingdepth;fasterspeedresultsinlighterandshallowermarks;higherfrequencydeliversfinermarkingtextures.
  

  

  
Intheearlystageoftraining,theworkpiecesIproducedoftensuffer