Injection mold material: aluminum alloy

author: Universe plastic

2024-05-10

Aluminum alloy is a type of alloy material formed by alloying aluminum with other metal or non-metal elements.

In some product prototypes and small batch injection molding production projects, aluminum alloy is one of the materials used in mold manufacturing due to its light weight, high strength, good thermal conductivity and easy processing.

Aluminum alloy types and parameters used in manufacturing molds

type	7075 aluminum alloy	6061 aluminum alloy	2024 aluminum alloy	5052 aluminum alloy
Composition	Aluminum,zinc,magnesium, copper	Aluminum,magnesium, silicon	Aluminum,magnesium,copper, manganese	Aluminum,magnesium
Tensile strength	572 MPa	310 MPa	470 MPa	228 MPa
Yield Strength	503 MPa	276 MPa	325 MPa	193 MPa
Hardness	150 HB	95 HB	120 HB	60 HB
Density	2.81 g/cm³	2.70 g/cm³	2.78 g/cm³	2.68 g/cm³

*The above parameters come from search statistics and are for reference only.

Advantages of aluminum alloy used in mold manufacturing

1. Excellent processability

Aluminum alloys have small chips, few burrs, and fast CNC feed speeds during processing, which can provide better finishing and polishing effects, and shorter mold manufacturing time.

2. Excellent thermal conductivity

Aluminum alloy has very good thermal conductivity and its cooling rate is also very fast. This means that the injection mold produced by it will greatly reduce the temperature adjustment cycle and the injection molding time will be faster.

3. Lightweight

The weight density of aluminum alloy is 2.70g/cm³, which is a very light metal material for mold manufacturing. The mold product parts made by him are easy to transport and install, which speeds up the manufacturing efficiency.

4. Material stability

Aluminum alloy has very good structural stability, can adapt to various mold temperatures, and is not prone to warping and deformation.

5. Flexible structural design

Aluminum alloys are more popular in complex mold designs because they are easier to machine, and even if the processing fails, the cost impact will be smaller.

6. Low material cost

The material cost of aluminum alloy is relatively low among metals, it is easier to process, and the tool wear of CNC equipment is lower. These directly or indirectly reduce the overall production cost.

Suitable for aluminum alloy mold production projects

1. Prototype manufacturing

Aluminum molds are often used for prototype manufacturing and small batch trial production of new products to help quickly verify the design and market response.

2. Small batch production

Aluminum molds are suitable for small batch production, especially when the product life cycle is short or the demand is uncertain.

3. Testing and development

During the product development stage, aluminum molds can be used for material testing, process verification and production process adjustment.

Summarize

When producing plastic products, whether to use aluminum alloy to make injection molds needs to be chosen based on the actual needs of the product.

Injection aluminum alloy molds have significant advantages in rapid prototyping, prototype manufacturing and small batch production. With proper design, processing and maintenance, aluminum molds can perform excellently.

Dongguan Universe Plastic Engineers recommends comparing more mold manufacturing materials before manufacturing injection aluminum molds, or consulting a professional injection molding company to get a better solution.

Injection molding machine type: micro injection molding machine

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