Therefore, in the Needle base mould design process, when the profile cross-section size is increased, the cross-sectional size that usually produces the offset wall is reserved in advance. Compared with the past, the extruded aluminum alloy profile has better shape, dimensional accuracy, easy assurance, and good surface quality. In this case, it can be designed as a hanging core mold, but it is not easy to repair the mold. Optimum design of long-section plane profile mold with relatively large aspect ratio. The optimization of some large-section hollow profile molds.
However, if the welding seam inevitably appears on the large surface or decorative surface of the profile during the production process, it may be better to keep it away from the large surface or decorative surface as much as possible. 2. If the two die holes share a central shunt hole, in order to ensure relatively stable supply of the two die holes, a baffle-type shunt rib can be added to the middle of the two holes in the silo, which is also conducive to mold repair. In the case of a shunt hole in the form of (Figure 1-2), the center line of the mold bridge is offset outward, (a: b=2:1, a1=a2). The design according to the conventional common form has many shortcomings.
The material flow speed is limited, so it is easy to produce deformation defects. The weld is formed by insufficient welding of the metal flowing through the shunt hole before entering the hole under the shunt bridge. Under conventional design conditions, large-section hollow profiles often have large surface waves, out-of-plane gaps, obvious welds and other defects. This type of combination mode can be used, but the openings need to be tightly matched. Optimization of flat profile molds with small openings and large cantilever area.
The shape of the car body and the engine are the two key parts of the car. More and more widely used, the coil is directly processed into formed parts and stretched parts with progressive dies. Mold structure design software. Its advantages are high productivity, low mold cost, and no need for sheet metal cutting. Third, the progressive die in car body manufacturing has developed rapidly. Compared with the step die used on a multi-station press, it saves 30. But progressive combination
https://www.ldmould.com/product/plastics/needle-base.html
However, if the welding seam inevitably appears on the large surface or decorative surface of the profile during the production process, it may be better to keep it away from the large surface or decorative surface as much as possible. 2. If the two die holes share a central shunt hole, in order to ensure relatively stable supply of the two die holes, a baffle-type shunt rib can be added to the middle of the two holes in the silo, which is also conducive to mold repair. In the case of a shunt hole in the form of (Figure 1-2), the center line of the mold bridge is offset outward, (a: b=2:1, a1=a2). The design according to the conventional common form has many shortcomings.
The material flow speed is limited, so it is easy to produce deformation defects. The weld is formed by insufficient welding of the metal flowing through the shunt hole before entering the hole under the shunt bridge. Under conventional design conditions, large-section hollow profiles often have large surface waves, out-of-plane gaps, obvious welds and other defects. This type of combination mode can be used, but the openings need to be tightly matched. Optimization of flat profile molds with small openings and large cantilever area.
The shape of the car body and the engine are the two key parts of the car. More and more widely used, the coil is directly processed into formed parts and stretched parts with progressive dies. Mold structure design software. Its advantages are high productivity, low mold cost, and no need for sheet metal cutting. Third, the progressive die in car body manufacturing has developed rapidly. Compared with the step die used on a multi-station press, it saves 30. But progressive combination
https://www.ldmould.com/product/plastics/needle-base.html
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