Mold for Injection Molding
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Mold for Injection Molding

One of the most common ways to make a product part is by pouring or creating a mold using materials such as plastic or metal. This process is very simple and involves the use of a machine to melt the plastic or metal parts into a mold. One way to make product parts is by melting the materials used for the manufacturing process. Then, they are injected into the molds to make the plastic or metal part. TEAM MFG is a leading injection mold manufacturer that provides high-quality custom plastic injection molding services.
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How to Make A Mold for Injection Molding


One of the most common ways to make a product part is by pouring or creating a mold using materials such as plastic or metal. This process is very simple and involves the use of a machine to melt the plastic or metal parts into a mold. One way to make product parts is by melting the materials used for the manufacturing process. Then, they are injected into the molds to make the plastic or metal part. TEAM MFG is a leading injection mold manufacturer that provides high-quality custom plastic injection molding services.


How to Make A Plastic Injection Mold for Injection Molding


Bars of chromium steel

The first step in making an injection mold is the assembly of bars of chromium steel, a high-strength metal that can withstand harsh conditions. These bars are then assembled into a block called a mold base, which is mounted on a milling machine. The workers then assemble the bars into a mold base by shaving them into place on a machine. This step allows the machine to create a mold that's compatible with the design of the bar.


Drill holes

A mold typically consists of two halves, which are composed of various components. The factory drills holes in the base to hold the parts together. After the plastic parts have been poured into the machine, they are then leveled and polished to prepare the base for high-speed machine work.


Create the mold components shape with CNC slowly machines

The base is then worn away by the steel particle to create the mold's shape. This process typically takes about 20 hours to complete. Most mold components go on to a second tooling machine especially if they have some fine detailing that this CNC machine is incapable of carving.


Verify the dimensions

The second machine is equipped with a copper electrode that's designed to mimic the shape of the plastic part. On the other hand, the half of the mold that's already been formed using the first machine is being made under the second machine's cavity. After tooling, they drill coolant lines, this is for the cooling fluid, they’ll use to accelerate the hardening of the molten plastic.


Extract the molded plastic part

The surface of the mold is generally rough due to the use of various tools. This helps make the casting process smooth. After the plastic has hardened, it's time to extract the remaining parts of the mold. These include the buttons that are attached to the steering handle of a jet ski. They first mold a structural base out of white plastic, then they inject a rubber like plastic to cover the raised lettering. Aside from plastic, injection molds can also be made using different materials such as aluminum, brass, and rubber.


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