The laser below different situation combination spells the figuration function of solder board

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Test data and condition are in this experiment, reciprocity is thick / differ thick / with material / armor plate of different capable person undertook laser spells solder experiment. What laser uses is laser of body of hooliganism of CO2 fast axis. Focusing lens focal length is 220mm, craft assists gas to be helium gas. The output mode of laser is Q model. The experiment sees with the performance data of steel the watch shows 1 times: In this research, undertook is the same as respectively thick / with material, with thick / different capable person, difference is large / with material, difference is large / the disparate test combination such as different capable person undertakes laser spells solder experiment, material combination sees the watch is shown 2 times. Demand of quality of the ministry side laser spells solder to receive data to be opposite is very high. Before at present domestic explicit laser solders, the preparation that carries a department to material is like the method that below a few kinds of use high accuracy cut roughly: Use machinery grinds the method that press; The method of use Laser Cutting; Use the method of double beam of light; The method with use strong choice. Every kinds of method has its actor drawback, before this experiment is undertaking laser spells solder, the method of use Laser Cutting undertakes frontier department prepares. After Laser Cutting, frontier department quality achieves laser completely to spell the requirement of solder. Result and discuss 1.

The mechanical function laser that laser beam welding receives contact spells solder when transverse tensile test, all rupture in place of mother capable person, measures performance cannot be mirrorred solder the circumstance of contact. And when fore-and-aft drawing, edge of laser welding line distributings on direction of whole sample length, can mirror laser to spell solder to solder the circumstance of contact. When fore-and-aft drawing, circumstance of 4 kinds of different combination issues what laser beam welding receives contact to succumb the change of intensity and tensile strength sees the graph is shown 1 times. From the experiment the result can see, its intensity rises than what mother capable person has fixed rate. Because laser beam welding is received,this is of welding line fashioning a process is a fast and cooling process, its intensity and hardness compare what mother capable person has fixed rate to rise necessarily, and plasticity has fixed rate reduce. From the experiment the result still can see, ply percentage is not large to effect of strength of laser beam welding, and the difference of grade of material, the impact that spells solder intensity to laser is bigger. After the material laser of different grade spells solder, solder the intensity of contact basically depends on the material of low intensity grade, and be not the average that is strength of two kinds of data. 2.

Experiment of cupping experiment cupping determines the deepness of the biggest figuration when burst of test specimen happening. In this research, compared the laser beam welding below 4 kinds of different situations to solder value of contact place cupping and photograph of mother capable person compare drop circumstance, see the graph is shown 2 times. Cupping is worth reducing is with ply thinner or intensity is weaker the armor plate of a side is a foundation. Can see from the result, the cupping of laser beam welding is worth relatively mother capable person has fixed rate reduce, the change of rate of thickness of plate spelling solder reduces an effect to what cupping is worth bigger. Graph the 3 effects that to succumb intensity reduces to cupping value, can see from the result, its impact is not big. 3.

Ultimate vault measures the limit high when vault is tall, make material is in pure pull bilge be out of shape condition, determine the figuration deepness when producing burst. In this research, compared succumb the impact with high to ultimate vault intensity, see the graph is shown 4 times. Can see from the result, laser beam welding solders the ultimate vault that contact is in compares what mother capable person has fixed rate high to reduce, succumb the impact of intensity is not big. In this research, still obtained below circumstance of 4 kinds of different combination laser beam welding solders vault of contact place limit is tall the fall that compares with photograph of mother capable person is led, see the graph is shown 5 times. Can see from the result, compare with photograph of mother capable person, difference is large / the laser beam welding when different capable person solders relative superiority or inferiority of contact limit vault falls the value is the greatest, other combines ultimate vault 3 kinds to also have the fall of certain level high. 4.

Experiment of reaming advance copy determines the relatively poor value of the aperture when opening limit craze and initiative aperture, in order to evaluates the flange performance of material. Next graphs combine the laser beam welding below the circumstance to solder for 4 kinds contact reaming rate and the fall that mother capable person compares are led, can see from the result, the fall with the fall that reaming leads and ultimate tall vault compares rate bigger, in difference thick / rate of the reaming when the circumstance that be the same as material falls rate is the oldest. Graph the 7 impacts that to succumb intensity leads to reaming. From the experiment the result can see, rate of reaming of laser beam welding falls than mother capable person rate is old. 5.

Figuration limit pursues (FLD) the laser that falls to the condition is being set in the 5th kind spells solder board to undertake printing reseau, the accident axis scale that reseau of quantitative change form measures with tool microscope after figuration gives figuration limit to pursue (FLD) , see a picture 8. The result shows, because welding line is affected, material is out of shape get diversionary, advocate meet an emergency drops apparently, the FLD0 substrate that figuration limit pursues medium is 44% , spell solder board for 30% . This shows, after laser of cold rolling armor plate spells solder, the figuration property that welding line manages relatively mother capable person has fixed rate reduce, reason its should keep away from in the located position on component figuration is the most complex place. Still can see from inside the graph at the same time, the greatest strain of dangerous area is 14% , spell solder board place to still still have the Yu Du of meet an emergency of 16% thereby, this explains laser spells solder board place to still can satisfy requirement of car board punch. Conclusion passes pair of cold rolling armor plate to spell solder to accept a mechanical function and research of figuration function experiment in the laser below different combination circumstance, the result makes clear: 1, after laser beam welding solder contact place its intensity rises than what mother capable person has fixed rate. The change of ply rate changes without rate of grade of material to the influence of intensity the impact is big. The laser beam welding of different intensity grade receives contact intensity to basically depend on the material of low intensity grade. 2, solder accept head position function of its figuration sex compares what mother capable person has fixed rate to reduce. Along with the addition that spells difference of solder board ply and strength diversity, figuration function is reduced. CNC Milling