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Acceptable Tolerances in Injection Molding

Acceptable Tolerances in Injection Molding

Injection molding is a widely used manufacturing tool for producing plastic parts. It is often used for parts consisting of multiple steps or assembly during the final production phase, which requires perfect alignment between each part. This alignment is controlled by dimensional tolerances. Failure to meet required tolerances can result in defects, lost material, and assembly failure.

About Mold Building Basics

About Mold Building Basics

The foundation of the injection molding process is the mold itself. The most common style is the straight-pull mold. This mold has two halves, a core, and a cavity. The halves of the mold, usually made from steel or aluminum, are held together in the molding press by mechanical clamps or hydraulic pressure. Molten plastic then fills the cavity to create the desired part. After the plastic cools, the halves of the mold are pulled apart.

About Injection Molding Terminologies

About Injection Molding Terminology

AGING − Change of a material over time, which may lead to improvement or deterioration.
ALLOY − Composite material produced by blending polymers or copolymers with other polymers or elastomers.
ANNEAL − To heat a molded plastic piece and slowly then cool it to relieve stresses.
ANTISTATIC − Agents that are added to a molding material to make it less conducting.
A-SIDE − The mold half that mounts to the fixed side of the injection molding press. Resin is injected into the part cavity via the sprue through the A-side, which is also called cavity side of the mold.
AUTOMATIC MOLD − A mold that goes through the entire molding cycle without human help.

Injection Molding Material Selection Expertise

Injection Molding Material Selection Expertise

Selecting the correct material for each application requires in-depth knowledge of injection molding resins, as well as a thorough understanding of the product’s application. At Ayanna Plastics & Engineering, we offer our customers a variety of injection molding resins and injection molding materials, from commodity grades to engineering grades. We also make it our business …

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