Custom Injection Molding

What is Custom injection molding?
The first question that comes to mind on hearing the term Custom injection molding is what is Custom injection molding? Custom injection molding refers to the making of plastic parts for specific applications i.e. customizing the components as per the customer’s requirements.

Injection molding of Custom Plastic Parts
Injection molding is a process in which plastic pellets are melted and injected under high pressure into a mold cavity. The molded parts are then ejected, and the process repeated. The finished products can then be used as is, or as a component of other products. To do so requires an injection molding machine and tooling (often called a mold or die).
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Injection Molding
Injection molding is a manufacturing technique for making parts from plastic material. Molten plastic is injected at high pressure into a mould, which is the inverse of the desired shape. The mould is made by a mold maker from metal, usually either steel or aluminium, and precision-machined to form the features of the desired part. Injection molding is very widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars. Services offered by providers of liquid injection molding include bonding, design assistance, graphics, tool or mold making, prototype or market entry molding, low volume production, high volume production, micro molding, large part molding, insert molding, two-shot injection molding, stamping services, assembly services, just-in-time capability, and packaging and shipping.

Liquid Injection Molding
Nowadays, liquid injection molding is becoming increasingly important. One reason for this is the increased performance requirements of the finished rubber parts. In addition, more and more producers of rubber parts are seeing the benefits in the high level of automation and productivity. Injection molding technology, using liquid rubber, combines the speed, cost efficiency, and versatility of plastic injection molding with the outstanding properties of silicone rubber. It is used in many applications where organic rubber cannot perform, such as military, aerospace, automotive, healthcare applications, etc
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What is Metal Injection Molding?
Metal injection molding is a powder metallurgy process used for manufacturing metal parts. Although metal injection molding uses powder metal, it is nothing like conventional powder metal processing. The metal powders used in metal injection molding are 10-100 times smaller than in powder metal processes. Also, the end product of metal injection molding is much higher in density. Metal injection molding offers the same benefits and features as plastic and rubber molding, but produces a much stronger end product. Applications for metal injection molding parts include surgical tools, automotive locks and actuators, firearm components, computer hard disk drives and electrical connectors.

Process of Metal Injection Molding
Metal injection molding is a fast growing manufacturing method that bridges the gap between the technology up gradation and costs involved. The metal injection molding process involves five steps, mixing, injection molding, de binding, sintering, and part finishing.
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What is Plastic Injection Molding?
Injection molding is a molding procedure whereby a heat-softened plastic material is forced from a cylinder into a relatively cool cavity giving the article the desired shape. Injection molding is a manufacturing technique for making parts from plastic material. Molten plastic is injected at high pressure into a mold, which is the inverse of the desired shape. The mold is made by a mold maker from metal, usually either steel or aluminum, and precision-machined to form the features of the desired part. Injection molding is very widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.

The process of plastic injection molding
An injection molding machine consists of three basic parts, the mold plus the clamping and injection units. The clamping unit is what holds the mold under pressure during the injection and cooling. Basically, it holds the two halves of the injection mold together.
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Silicon Injection Molding
Silicon molding services produce molded components made from silicon. Silicone rubber is a two-component, synthetic, flexible rubber like material made from silicone elastomers that can be cured at room temperature into a solid elastomer used in molding. It is heat resistant, durable and free of allergens or leachable chemicals. Liquid silicone is similar to normal silicone, but has different processing characteristics. It is purchased as a two-part raw material with a grease-like viscosity.
Nowadays injection molding of liquid silicon rubber is becoming increasingly important. One reason for this is the increased performance requirements of the finished articles. In addition, more and more producers of rubber parts are seeing benefits in the high level of automation and productivity.
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