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The main points of aluminum extrusion cnc mold design
Release time:
2022-07-05 10:38
Source:
The selection of aluminum extrusion cnc tonnage is mainly determined according to the extrusion ratio. If the extrusion ratio is lower than 10, the mechanical properties of the aluminum extrusion products are low; if the extrusion ratio is too high, the aluminum extrusion products are prone to defects such as surface roughness and angle deviation. The extrusion ratio of solid aluminum profiles is often recommended to be around 30, while that of hollow aluminum profiles is around 45. The shape of the extrusion die is determined: the external dimension of the extrusion die refers to the outer diameter and thickness of the extrusion die, and the external dimension of the extrusion die is determined by the size, weight and strength of the profile section.
For aluminum profiles with a large difference in wall thickness of aluminum extrusion cnc, the thin-walled parts and edge sharp corners that are difficult to form should be appropriately enlarged; , The size of the stringer part can be designed according to the general profile, and the size of the web thickness, in addition to the factors listed in the formula, still need to consider the elastic deformation and plastic deformation of the extrusion die and the overall bending, and the distance from the center of the extrusion cylinder. In addition, the extrusion speed, the presence or absence of traction devices, etc. also have a certain influence on the size of the die hole.
Generally speaking, the thinner the wall thickness of aluminum extrusion cnc aluminum mold, the larger the perimeter, the more complex the shape, and the farther it is from the center of the extrusion cylinder, the shorter the sizing belt here. When it is difficult to control the flow rate of aluminum metal, the cross-sectional shape of the aluminum profile is particularly complex, and the wall thickness is very thin. The flow-promoting angle or the guide cone can be used for the part far from the center to accelerate the flow of the aluminum metal.
aluminum,extrusion,cnc
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Tel: 86-512-53640771
Fax: 86-512-53640769
E-mail：sales@alumag.com.cn(Domestic sales)
export@alumag.com.cn(Export)
Web:http://www.alumag.com.cn/
Address: No. 9, Xingang East Road, Liujiagang, Fuqiao Town, Taicang City, Jiangsu Province, China