Encapsulation Mold
When a specific design requires combining multiple materials into one
finished part, the cost-effective process known as encapsulation molding may be the
solution you need. BMJ Mold builds high quality encapsulation molds for a
variety of applications.
Encapsulation Molds: Combine Materials with no Additional Assembly
Required
With encapsulation molding, a plastic part is formed or molded directly over or around metal
or plastic components, resulting in a single piece assembly.
- A typical example is a plastic sleeve molded over a metal drill housing
- This value-added molding operation eliminates the need for a costly additional assembly process
The process was originally developed to place threaded inserts in molded parts, and to
form the plug around the prongs on the ends of electrical cords.
It was
found that molding directly over the metal part saves time and money by eliminating an assembly step.
Today, there are few design limitations or restrictions on material
combinations.
Encapsulation Molds: Design Considerations
Encapsulation molding has become a common method for
manufacturing mixed material parts. Basic design
rules for encapsulation molding are generally similar to those for
standard
injection-molded parts. There are, however, a few
design elements particular to encapsulation molds that may affect the
part's design and should be considered before proceeding:
- Insert material used
- Pull and compression-strength requirements of the insert
- Leak resistance requirements of the finished part
- Axial forces, or torque, the insert will be subjected
- Voltage requirements for electrical applications
The design of the insert itself must also be considered, such as sufficient "anchors" incorporated into the insert's structure to properly
secure it into the plastic part.
Each of these areas must be addressed before our engineers can select
the proper plastic material, and build the mold to perform optimally with
the materials.
For a quote or more information about how we can help your project, call 765-457-1166, or send us an email, or submit this short form:
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