The solder of laser hard drill steel of auto industry domain

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The car model with the closest Germany almost each generation used the one or more welding line that by laser solder of hard drill steel completes to join the small plate of automobile body. Compare with fusion welding photograph, the main advantage of solder of hard drill steel can avoid fused zinc film at the same time into slick surface in Yu Nengsheng, this avoided the further processing process that corrode or needs possibly. As a result of these advantages, solder of laser hard drill steel can be used to the joint that handles a few surfaces to see, if be located in tailgate, the area on roof and C column. Graph 1: Outside the mechanical stability that the solder of hard drill steel of tailgate of A3 of new-style Ao Di has height besides the requirement, these visible juncture still must want to very small heat affects an area to need to satisfy strict optical requirement. And only laser technology talent satisfies these strict requirements. In the application of this respect, nd:YThe use of AG laser had gotten admissive. However recently, the use of diode laser also increases with each passing day. The typical parameter of the laser light source that uses at solder of hard drill steel asks to be: Laser power 2-4 KW, facula size: 1.

Space of 5-3 Mm work is 150-250 Mm about. The solid state laser that mentions in front and diode laser all can satisfy above to ask. Graph 2: Take the communication interface of bus line of direct diode laser of head of solder of hard drill steel, be like Profibus DP or Interbus-S, 24 hours of telecommunication serve, cent bundle implement / switch, use at Nd:Y with etcThe optical component of AG laser is practicable to these two kinds of laser. But, it is what characteristic makes Nd:Y of diode laser excelWhere is AG laser? Because diode laser has higher utilization rate and reliability on production, need to safeguard scarcely at the same time, because this diode laser is on mass production,have clear advantage. The diode laser term of service of new generation can exceed 20, when 000 laser work, pour the below working environment 3 time that arrive 4 years for 3 about. And on the other hand, the Nd:Y of lamp pump riversideAG laser is about to change pump riverside light when every 1000 jobs, need 20 times to safeguard inside same time that is to say, bring about during corresponding shutdown and a few expense. If Nd:YIf the flashlight of AG laser became bad, production must suspend 20-30 or so minutes. As corresponding as this is, because diode laser used government of intelligent diode stack, although certain inn sends the laser when the breakdown outside the business,also can work continuously. Below this kind of circumstance, compositive electric subsystem identifies the inn that gives trouble, put out it, and computation gives new operation parameter. Then, in 2 can throw production afresh again to laser of the diode inside 5 minutes. Such, the component of breakdown can be included long-term maintenance plan. The dimensional area bulk that laser place constitutes is more and more important also. Below the circumstance that outputs power likewise, what diode laser occupies a space to be Nd:Y only1/5 of AG laser. In addition, because diode laser is compositive,spend tall have miniaturization characteristic, it can be put on the car even and arrange at any time use. Besides above these are improved beyond, what should mention below is to face treatment process to use the improvement that diode laser wins. Treatment experience makes clear, when the result of solder of hard drill steel that compares car tailgate directly, the welding line of solder of hard drill steel compares diode laser Nd:YThe welding line of AG laser is finer smoother. Because diode laser has very good space and time stability, at the same time its beam of light distributings even, approximate at " flat-roofed " intensity distributings, this makes bath all the more smooth, also make the process of solder of hard drill steel very stable. Make us considerable this finally the surface that measures more smooth. Comparing diode and Nd:Y from economic respect directlyWhen AG laser (see a picture 3) , because diode laser is overall efficiency is tall, the indication with the horary already OK and very good efficiency from the model its advantage, but, using this index only is insufficient. Returned those who need a consideration to include to safeguard additionally and change the charge of the spare parts, the space uses the fee with the sources of energy. Still have the cost that more important is the cost that be interrupted as a result of production and causes and product loss and faulty part. this if a lot of additional factors consider inside, diode laser and Nd:Y of lamp pump riversideAG laser exceeds the apparent cost advantage of 30% than having. And the diode laser of another type -- advantage of the cost when direct diode laser is compared with traditional laser can be as high as 50% . Graph 3: 4 kilowatt laser has cost contrast: Nd:YAG and diode laser fall in a lot of circumstances, although Nd:YAG laser already in use, undertake to diode laser new investment still compares use Nd:YAG laser has beneficial result more. From as a result of,saying substantially is diode laser cost can be very low, and Nd:YBecause production suspends the fee that changes with pump riverside lamp,AG laser still can arise. Graph 4: Carry head of solder of hard drill steel, fiber-optic coupling diode is stimulated, smooth implement diode laser is in economic respect and the superiority that face treatment side behave the solder of hard drill steel in auto industry to go up not only, and also got affirmation on the application of a lot of other respects. Come for years, diode laser already was succeeded use at soldering plastic and solder small plate, quench, with coating / the respect such as frit Fu technology. CNC Milling CNC Machining