Search This Supplers Products:Aluminum Die Casting Production and ServicesMould DesignCNC MachiningPost processingZinc Alloy Die Casting Processing
Introduction of Influencing Factors on Mould
Life of Aluminum Die Casting?
There are many factors to influence mould life
of Aluminum Die Casting which involves many specific aspects. For
manufacturing, it is necessary to design mold structure correctly, make mould
parts accurately, and formulate reasonable and effective standard for heat
treatment. To use mould properly according to technological specification, to
maintain and repair in time, and give play to related character of mold
adequately so that die casting mold quality and working life can be increased
effectively.
1. Structure Design
Mould structure design needs sharp fillet and
oversize section changes.
2. Machining
Improper machining can easily lead to stress
concentration. The decarburization layer formed by rolling forging can be
eliminated completely and uniformly when the finish is insufficient and
machining is not enough, which may cause the material to fail in the early
stage.
3. Grinding and Electrical Discharge Machining (EDM)
Under the condition of ensuring the material
quality, the appropriate coolant should be selected to control the grinding
cooling. EDM can produce a white-bright hardened layer of quenching martensite
on the surface of the die mould after quenching and tempering. The
corresponding thickness is determined by the current intensity and frequency
during processing.
4. Heat Treatment
Heat treatment is the main factor of initial
failure of die casting mould. And the deformation of heat treatment is mainly
caused by thermal stress and structural stress.
5. Production Operations
The minimum injection speed of Aluminum Die
Casting should be 18m/s, and the corresponding maximum injection speed should
not be greater than 53m/s and the average injection speed should be 43m/s.
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