Seamless welding technology in welding welding mold showed superior performance, improve the observability of the accuracy, smoothness and appearance, shorten manufacture cycle of mould. Thanks to the seam in the welding process and effect of die appearance.

At present, with the increasing global market for high-quality parts demand, people can improve the part accuracy seamless welding technology is becoming more and more popular. Recently, Japanese Makino company ( Makino ) coalition partners successfully developed a new seamless welding technology, which can effectively eliminate the handover seam, between the mold and the parting line. Using advanced technology and vertical machining center is the key of the process, can be a new way to mold production, at the same time in the injection molding process, the high efficient heating and refrigeration technology. This new technology not yet, Makino company developed the related processing applications for it.

The use of seamless welding technology, not only can help eliminate die weld, also the precision, smoothness and appearance of observability. At the same time, seamless welding technology implementation effective control in the injection molding process, shortening the processing cycle of the die. Because the production of the technology products with surface finish good, so there is no need to use the two sputtering and annealing, which avoid the dimensional changes caused by the two contraction.

In the past, mold production process, the cooling pipeline layout in the mold surface, surface finish of the product was not always uniform. In some relatively new technology, the mold core and mold cavity cooling pipeline flow provided in the vicinity of resin injection area, can make the quality of the products get better assurance.

The new seamless welding technology using modern machine tools and some new technology. In accordance with the requirements of new technology, processing net-like mold core and mold cavity, in order to avoid the movement and the two clamping, fourth axis milling machines, this can increase the tolerance of size precision. Plate fin and the water chamber cooling pipelines also get more extensive application, and further improve product quality and seamless welding finish.

The new seamless welding technology makes the variety of die channel design and using polyhedral vertical machining center milling possible. In the molding process, changes of die channel design can help the best temperature control heating and cooling.

The milling of the important diameter penetration room, can make the temperature maintained at 60 ℃. These permeation chamber milling in the back cavity, the same shape and die cavity, can be used as high pressure steam and cooling water channel, can play a heat conduction function of cavity surface, so that the temperature distribution is more uniform, thereby maintaining the temperature change, speed fluctuation of temperature control.

Application of seamless welding technology will not make the workpiece warpage and deformation of the mold cavity and the mold core, matching the side mold will not cause any problems. In addition, the workpiece can be tilted, avoid using only the ball end cutter, prolong the service life of the milling cutter.