Custom Aluminum die cast mold service

3D and 2D products drawing from the customer, the step of mold flow simulation is necessary. To find any potential defects during casting. china mold For example, some parts have A surface and B surface requests. Particularly for nickel finishing die casting parts. No air porosity allowances, many parts will need second machining. Have air bulbs occur after machining. Some parts will have very strict tolerances in the same axle. This time JSCAST CAE software will offer a great solution. In fact, aluminum die casting mould manufactory designers need advanced CAE software to help their job, not only the experiences. DFM for customer confirmation, the step of raw material quality checking is very important, particularly the mold core material checking. Now material of H13, SKD61, 8407, 1.2344, DH-31 widespread use in Ningbo die casting mold manufactory. We not only checking the chemical composition and mechanical properties. The material pure standard is also very important for die casting tooling. Any impurity contains in the mold core will cause a crack problem after thousands of injection times, rough grinding, milling, and rough CNC machining before heat treatment. After heat treatment will take precision grinding and precision machining. In our pressure die casting mold workshop equipped with a high speeding five-axle machining center. EDM is widespread use in pressure dies casting tools production. This EDM machine's great advantage reduces machining cost and solved most complicated structure in HPDC dies, the disadvantage will get corrosion problem. So high standard EDM machines choose is critical. Remove oxidation material is a necessary step after EDM machining. Aluminum injection tooling cavity polishing. The roughness of the cavity also important for pressure die casting tooling injection times. The polishing direction should the same direction as mold opening.

Perfect mold design is important for mold injection times and superior quality casting components.

1 prevent molten aluminum alloy directly erosion-corrosion mold cavity. Over 70% of the crack problem caused by part mold overheating.

2 the injection speed and filling velocity control well when the casting gate located in the thick part.

3 for excellent air venting, the parting line better located at the end of the casting system.

4 let air have time escape from mold cavity before moving die and fixed die closed.

5 good parting line design should think about how to reduce deburr cost.

6 for strict concentricity casting parts, the products the same axle should locate in one cavity whatever female cavity or male cavity. Meet precision requests at the same time highest possible reduce second machining cost. 
In addition, we can also provide customized Aluminum Die Cast Mold Accessories.

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How To Solve Casting Defects And Suggestion Tips

How To Solve Casting Defects And Suggestion Tips

1 cold flow

Increasing casting temperature, reduce filling time, add gate size, improve air venting condition. china mold Find the right aluminum alloy, silicon contains over 10% aluminum alloy will have good liquidity.

2 sinks

Different aluminum alloys have different shrinkage rates, find minimum shrinkage rate aluminum alloy for your casting products. Alloy aluminum shrinks less than pure aluminum, we suggest ADC14. The material of ADC14 Si contains 16%-18% Cu contains 4%-5%. And the same time reduces casting temperature and mold temperature.

3 blisters

Many blisters problems caused by ejector parts from the cavity, not the right time. To early ejector, parts will have not enough time solidification, keep products in mold cavity more few seconds.

Reduce mold temperature and check the mold temperature is equably or not, and prevent part mold overheating.

4 laminations

Poor mold rigidity, a problem caused by mold plate shake during casting, the pressure die casting mold base very important for die casting products quality, professional die-cast mold maker will seriously to handle every step in the quality die-cast mold.do not use QT550 or QT600 for your die casting mold base, most china die-cast mold makers will purchase S50c material for their aluminum die casting mold.

5 warping

First, we need to recheck the ejector pin to locate is the right place. Any deflect ejector will make casting parts a bending problem. Check stack-up products is the right way. Particularly for large and thin walls products. Like the die-casting aluminum light shell, the normal light shell was thin walls die casting parts.

6 shrink porosity

Reduce casting temperature, and looking the low melting point aluminum alloy, increasing injection pressure. Many aluminum dies casting manufactory casting big parts by small size cold chamber die casting machines. Before batch production Please Calculated part weight and analyze the project area.

7 cracks

Cracks problem caused by many cause. Check the mold first, check aluminum alloy chemical composition if mold has no any problem, any chemical ratio imbalance will make cracks problem, so control smelting furnace temperature stable is critical. At the same time increasing mold temperature.

8 gas porosity

Increasing air vent size, add filling time, let air have enough time to escape from the mold cavity. Recheck your lubricant spray is right or possible too much spraying.

We are Aluminum die casting mold suppliers. If you are interested in our products, please feel free to contact us.In addition, we can also provide customized Aluminum Die Cast Mold Accessories.

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