Aluminium alloy die-casting processing it will often appear what are the problems?

Author: admin / 2023-11-15

Aluminium alloy die-casting processing it is also subject to many problems, what are the specific aspects of the problem? Today we will give you a detailed introduction.

1, the processing process appears mouldy: aluminium in the air natural oxidation generates a mouldy situation will be along when the mouldy spot, the essence is more loose aluminium oxide, die casting aluminium due to the material being relatively loose, mouldy will continue to aggravate.

2, the product processing surface holes exposed: aluminium alloy die casting of the appearance of the internal workpiece will be because of the shrinkage phenomenon, there is a layer of quite dense tissue, and there are some tiny holes if the processing volume exceeds the thickness of the dense layer, the holes will increase significantly.

3, tool wear or chipping: when the casting is mixed with impurities or due to the phenomenon of segregation formed when the hard point is, it is likely to damage the tool, and the coated tool coating layer if the same contains aluminium, chipping phenomenon will also occur from time to time.

4, the surface finish and poor dimensional accuracy: aluminium alloy die casting its low hardness, and good plasticity, in the cutting process is very easy to produce chip tumours, seriously affecting the elasticity of the cutting recovery, cleaning, lubrication and reducing the processing of the use of cutting fluid is aimed at cooling. If the degree of lubrication in the process is not enough, the chip tumour will affect the dimensional accuracy.