German brand laser welding laser repair of precision mold processing technology to spread into China in the early 21st century, and

gradually replaced the traditional TIG welding and cold welding, but in Europe and the United States and other developed countries

such as Germany, the technology in 20 nineties has matured and developed into a rigorous level of the industrial system. The total

is well known, the welding of precision molds is different from other parts welding, quality control requirements are very strict, and

the repair cycle of the workpiece must be as short as possible. Traditional TIG welding heat affected zone around the welding

caused by collapsed, deformed probability is very high, for high precision welding area of ​​the mold must be heated warm-up

welding at a particular temperature, but also natural cooling annealing, so toss down the cost and time are not accepted by the

users; cold welding and welding is not solid and shedding defects. Laser welding TIG welding and cold welding of these

deficiencies, gradually being widely used.
Industrial development imbalance also exists in Germany, the most advanced industries are concentrated in West Germany and

East Germany the technology from the former Soviet Union, several industrially developed cities mainly refers to Munich, Frankfurt

and Stuttgart. Similarly, a pioneer of the laser welding industry in West Germany. In China, the most commonly used laser welding is

a dedicated the GHJ laser wire commonly used models in Germany: 8407, SKD11., SKD61, S136.P20718.738, manufacturers in

the world-famous industrial cities - Stuttgart. Back in the early 1990s, has been in the argon arc Mig Welding Electrodestechnology the GHJ

manufacturers have realized the huge market for laser repair mold, purchased a number of laser welding of Germany's external

repair precision molds, as Germany's first professional to provide precision mold laser repair technology, production and service

providers, and through trial and improvement, combined with the technology of metallurgy and cold drawing to produce a the GHJ

brand laser welding. The the GHJ manufacturers have been using their own production of wire repair mold, Mercedes-Benz and

BMW auto mold factory is a the GHJ factory fixed customers. In China, just two years the GHJ wire market share has reached more

than 60%.
Germany, there are other brands of wire, but because of the lack of the Welding practical experience, its quality has been plagued by

the question, for welding similar mold polishing sticks and special heat treatment, there is always quality problems; part of the wire

manufacturer located in East Germany, inherited production technology in Russia and wire prices are relatively cheap, but the quality

of the welding process is always so end-users bruised and battered. China's domestic use of wire varied, 90, # 90, M90 and so on.

Part of dealers to profit as a stainless steel wire, welding pull fine wire laser Welding Wireto sell, even posing as a German the GHJ

brand wire to sales. Not regulate competition in the domestic market, leading brand wire has not been fully utilized, thus not improve

the quality of domestic wire and laser welding mode for a long time. It also laser repair mold technology lagged behind the

advanced countries more than a decade, one of the reasons.
German brand laser welding method to identify a lot, mainly in the following ways: 1, welding grinding, no trachoma, crack, black and

poor weld quality, weld hardness of base metal; good quality wire surface metallic luster, good toughness, absorb moisture easily

rust, will not rust the wire coated with anti-rust layer thickness, or its material close to the stainless steel components after welding

is easy to produce trachoma or easily deformed off or hardness is very low. The laser can melt, burn, or vaporize almost all of the

material. If you are using wire containing heavy metals, or wire plated anti-rust layer containing toxic ingredients, these gases and

steam will endanger human health. We recommend that the laser welding of the majority of users to be vigilant, not to use laser

welding consumables in order to ensure the health of the laser welding operators, as well as improve the technical quality of the

laser welding mode. .