What Is Injection Molding & Mold Making

Injection molding & injection moulding is the most commonly used manufacturing process for manufacturing plastic parts. It refers to the method that under a certain temperature, the plastic material completely melted by screw stirring is injected into the mold cavity with high pressure, and then cooled and solidified to obtain the injection molded product. This method is really cost effective and it’s suitable for the mass production of complex shape parts. There are mainly six stages: mold closing, glue injection, pressure maintaining, cooling, mold opening and product removal. Molding also has the highest variety of materials, colors, and configurations when compared to CNC machining or even 3D printing. Beyond materials, injection molded parts can have custom cosmetics, polishes, or surface textures.

Advantages of injection molding & moulding services:

Good dimensional accuracy.
High productivity, easy to realize automatic operation.
Excellent surface finish.
Large volume production available.
little need to finish parts after molding.
Automation to save manufacturing costs.
Excellent repeatability and flexibility.
Injection molding produces low scrap rates relative to traditional manufacturing processes like CNC machining.
Minimize the material waste.

Tooling & Injection molding applications:

The parts manufactured by mold making service are used for building and construction, food and beverage, windows and doors, automotive, household appliance, electronics, communications and more industries, car molding, medical molding, and bumper molding would be a key part.

Common plastic injection molding materials:

Polycarbonate, Polyoxymetheylene (POM), Polystyrene (PS), Acrylonitrile Butadiene Styrene (ABS), Polypropylene (PP), Polyethylene (PE), Thermoplastic Polyurethane (TPU), Thermoplastic Rubber (TPR).

Different types of injection moulding processes:

Die casting
Metal injection moulding
Thin-wall injection moulding
Injection moulding of liquid silicone rubber
Reaction injection moulding
Micro injection moulding
Gas-assisted injection moulding
Cube mold technology

Injection Mold Designing & Making – How To Make Injection Mold

There are many factors to consider for injection molding, but part design for the injection molding is critical. Getting it right could mean lower entry cost, high production quality, shorter cycle time, and quick assembly. As a source of experienced engineers and product designers, we have an individual or a team of professionals who can help you develop injection molded parts from scratch. Our team of injection mold design engineers specialize in drawing with CAD, CAE, CAM, commonly using SOLIDWORKS, PRO ENGINEER, UNIGRAPHICS, and MOLD FLOW analysis software.
What’s more, we use 3D printing method to make mold parts and this mold making method helps you reduce the cost and reduce the labor intensity in terms of improving productivity and ensuring product quality. So choose us and you can get the best quality 3D printed injection mold.

Capabilities Of Injection Molding Service At Bellflower

1.Custom Insert Molding
Bellflower also offers insert molding as part of its injection molding capabilities that works especially well for parts that have threaded holes. With our custom insert molding service, you can make parts all at once instead of having to do assembly after the fact. And insert molding service will help you reduce costs, lower the size and weight for the part, and improve reliability. Insert molding materials including ABS, PPS, PS, PSU, PEEL, Liquid Silicone Rubber, Polypropylene, Polycarbonate, PMMA, PEI, PPA, LCP, etc.

How does insert molding work?
It uses a preformed part that is loaded into a mold where it is then overmolded with a thermoplastic resin to create a final component. When the run is complete, parts are boxed and shipped shortly thereafter.

Advantages of our insert molding service:
Durability: Metal inserts will guarantee the function of threads and mitigate wear and tear over the part’s life.
Strength: Because it’s a “one-shot” process, insert molding can produce stronger parts than overmolding and other processes.
Creating production parts: Insert molding is great for creating prototypes and production parts.

2.Overmolding Service

Overmolding is a multi-step injection molding process where two or more components are molded over top of one another. It’s sometimes referred to as two-shot molding because it is a two-step process. Using overmolding service allows us manufacture products with multiple materials and/or colors relatively simply and can be used for a range of applications including medical, automotive, military and more. We have the expertise to make sure your overmolding project is a success. Work with us to create the ideal solution for your exact needs. No matter what the specifications of your project, we will meet the expectations of your next overmolding project!

Injection Molding Surface Finishes & Textures

Injection molded parts have various of surface finishes. Plastic parts and parts made of other materials can be given various types of finishes for aesthetic or functional purposes. Different types of injection molding surface finishes can be used to certain processes to produce a new product with a different texture, look, and feel.