The aluminum alloy shell profile die of the docking station plays an important role in the profile stretching production process, and is the basic tool to ensure the product molding and make it have the correct shape, size and accuracy. In the actual production process, the profile die has several adverse effects on the product surface effect:
1. Influence of aluminum alloy shell profile die with seam angle or poor welding
The aluminum shell profile of the docking station adopts the plane shunt combined die stamping process, which has relatively deepened the difficulty in the profile production. The metal passes through the shunt and welding process, so there is a welding line for hollow profiles. There are two reasons for the gap: first, the shunt hole and welding chamber are narrow, the metal supply is insufficient, the metal does not form enough hydrostatic pressure in the welding chamber, and the product does not weld well and flows out of the mold hole, leading to the existence of welding gaps in the product; It is caused by poor welding of hollow profiles due to excessive lubrication and poor lubrication.
2. Reasons for the appearance of concave or convex arched surface on the wall of aluminum alloy shell profiles
The reason for the concave arch surface of hollow aluminum alloy profile wall: the working belt of aluminum alloy profile die core is lower than the working belt of lower die hole, and the effective length of the working belt of die core is too short. The reason for the wall protrusion of hollow aluminum alloy profile: the mold has been used for a long time, the working belt of the mold core has been seriously worn, and grooves have appeared, which increases the friction resistance. The wall protrusion of hollow aluminum alloy profile is caused by the slow metal flow.