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At SOMOCAP, overmoulding by injection of rubber, plastic, composites or metal inserts is based on a controlled industrial approach. This integrates design, choice of materials and process control to guarantee the functional performance of overmoulded parts:
- Functional analysis and design of the part: study of the areas to be overmoulded, material interfaces and mechanical, thermal or chemical constraints.
- Choice of materials and substrate preparation: selection of the base material and the overmoulded material (thermoplastic, elastomer, composite or metal insert) according to the project specifications.
- Injection moulding: injection of the second material onto the support part, with control of adhesion and repeatability parameters.
- Cooling and stabilisation: cycle control to guarantee dimensional stability and interface quality.
- Checks and validation: dimensional and functional checks to ensure compliance of overmoulded parts in series production.
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Industrial applications of overmoulding
Overmoulding enables complex functional requirements to be met by combining materials with complementary properties in a single part. It is aimed at a wide range of industrial sectors looking for reliability, functional integration and performance in use. Based on proven processes such asplastic injection and liquid silicone injection moulding (LSR), this technique meets increasingly demanding specifications and covers a wide range of applications:
- Waterproofing and protection: overmoulding of flexible areas to provide waterproofing and protection against dust, moisture or chemical agents, without the need for additional gaskets.
- Ergonomics and user interfaces: integration of flexible or non-slip grip zones to improve user comfort and the safety of man-machine interfaces.
- Connections and electronics: overmoulding of components to protect connections, secure interfaces and improve the mechanical strength of electrical and electronic assemblies.
- Industry and technical equipment: combining mechanical properties and usage for functional parts incorporating damping, vibration insulation or resistance to mechanical stress.
- Aeronautics and demanding environments: production of structural parts adapted to high thermal, chemical and mechanical stresses, with a high level of reliability and traceability.
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Overmoulding plastics, rubber, composites and metal inserts involves injecting a second material into the first part to create a single component incorporating several functions. It enables manufacturers to design improved parts that combine rigidity, flexibility, sealing or protection, while enhancing the reliability of the end products.
Overmoulding can combine thermoplastics, elastomers, metal inserts or composite materials, depending on the functions required. The choice of materials is defined upstream to guarantee the adhesion, durability and performance of the parts.
Overmoulding reduces the number of components, cuts down on assembly operations and improves overall reliability. It contributes to the design of parts that are more robust, more ergonomic and better adapted to demanding industrial environments.
Overmoulding is used in connector technology, electronics, industrial equipment, aeronautics, construction and user interfaces. It is used to produce structural parts with integrated mechanical, thermal, sealing, damping and functional properties.
When you place your trust in SOMOCAP, you are choosing a committed industrial partner that supports its customers from the design stage through to series production. Thanks to its integrated design office, injection expertise and quality certifications, SOMOCAP actively contributes to the collective success of demanding industrial projects.