Laser beam welding of coping of car of car white automobile body is received shape system

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Truckload make " 4 big tooling " -- truckload assemble automation line, automobile body solders and assemble product line, spray product line, punch product line. Among them the car solders assembly line relies on an entrance entirely almost. Car automobile body is automatic solder holds a line, truckload and automatic assembly line is one of link with the weakest equipment of our country automobile. As the development of advanced production technology, implementation solders the automation that the product makes, flexible change change with intelligence already made inevitable trend. Car automobile body basically relies on to solder have link, the technical content of car product is representing the industrialized level of a country on certain level. Laser beam machining already became contemporary car to make indispensable technology, look from international, famous Motor Corporation ground of strive to be the first makes medium applying in automobile body laser beam welding receives a technology, in order to make sure product quality and product technology are advanced quality, in the remain invincible in increasingly intense product competition, this kind of trend already got reflecting in domestic joint ventures.

The United States, Germany is the earliest Nd of will high power: YAG solid laser is used at the car board gold of cut and gear solder, make the cycle of car remodel shortens from 5 years, laser solders to already made standard technology in auto industry. Product line is assembled to go up in automobile body, 5 axes machine of laser beam machining or fiber-optic system of transmission laser beam machining is used extensively at laser beam welding to receive. 3 old car groups of American (general, Ford, Kelaisile company) , European car production company (like RENAULT, VOLVO, AUDI, BENZ and BMW company) laser beam welding is used to receive a robot on product line, it is with general motors company exemple, its are online use laser amounts to 200 above. German people corporation all uses laser beam welding to receive in the roof of the brand such as Audi A6, Golf A4, Passat. But large-scale online laser beam welding receives the automobile body of car of card of home made product still is blank, improve product quality, concerned application is begun to study the work in home, master crucial technology, craft, form own research and development, innovation, productivity, it is hasten of general trends place, also be the foundation of international market of trend of card of home made product. Car white automobile body is enclothe by all structural member and much one when solder together to form solders assembly, it is the body of the car, its quality has very big effect to car whole function, can be its cent 20 big assembly commonly. Use laser beam welding to receive, can decrease build receive width and a few reinforce a part, return the volume that can reduce itself of automobile body structural member, reduce automobile body weight thereby. Laser beam welding is received use at roof crust and frame to solder, of transmission converter cover board solder, by CNC control, its cycle time is 16 seconds about, actual weld time is 3 seconds only, one day can move 24 hours continuously. Online white automobile body solders to basically be used at structure of automobile body frame solder, for example of coping and flank automobile body solder, the tradition solders resistor spot welding of the method has been soldered by laser gradually be replaced. Receive a technology with laser beam welding, can increase the flexibility of products plan, reduce production cost, workpiece joins the joint range breadth between can decrease, reduced plank to make dosage also raised the stiffness of bodywork already, increase the competition ability of the product. Laser beam welding accepts the couple that can achieve level of rolled steel element, your synthesis of knot of two armor plate makes a stencil steel, increased to combine strength thereby, eliminated the gap between panel, avoided friction. Laser solders to still be had successional, traditional spot welding nods composition by many solder, can produce leakage drop, and laser beam welding receives the welding line that form firm and successive, without leakage dot. The stiffness that can raise white automobile body especially and solder dot are fatigue, cent of main application place is the place such as motherboard and coping and side wall, side wall and doorcase. Traditional spot welding is put in the problem with slack wet of roof welding line, need adds outfit balata sealing strip to solve slack problem, and use laser beam welding to receive technical criterion leave out balata sealing strip, at the same time leave out because assemble quality not the slack issue that beautiful brings. From manufacturer respect regard, two parts that traditional spot welding needs to will solder are built each other receive, virtually increased the wastage of rolled steel. Additional, spot welding is put in discontinuous sex, the laser beam welding that the combinative area of panel did not solder continuously apparently is received much, the stiffness that reduced bodywork thereby (solder at laser relatively) . The other benefit that laser beam welding receives is to be able to reduce material dosage, increase size precision and reduce cost to wait. Use laser beam welding to receive craft to be able to reduce truckload production cost, content to flow not only cost, truckload weight, tolerance buildup, oily bad news and percent defective, and can reduce periphery reinforcement amount, simplify assemble measure, make the collision ability of car, strike out rate rises with the ability that fight corrupt at the same time. CNC Milling