I’m here to tell you that injection molding is really not as hard as it sounds. It’s quite easy, actually. Once you know what you’re doing, of course. If you want injection molded products for your project, but don’t have the injection molds already made, this  should serve as a helpful injection molding guide for …

Side Cores What are the best methods for releasing severe threads or cuts? Do side cores, splits, or other methods work? In addition to the added complexity of the mold structure, adding any of these features will significantly increase the cost of the mold (and the cost of the product), not to mention the additional …

Surface Finish of Injection Molding Several factors affect cost, including the finish of mold parts, the surface of the mold, and the joints between mold parts. A higher mold price will result from a finer machining finish and the necessity for hand finishing. In spite of its apparent obviousness, too often it is overlooked. Tolerance …

In a quotation (or “quote”) to a customer, the following information should be included: Date on which the quotation was provided Details about the quoted plastic mold, including the type of machine and ancillary equipment used to make the mold. The plan should also include specifics about the mold, such as the design of the …

Injection Molding Material Drying In some materials, moisture can be absorbed by them from the atmosphere, which can cause the material to hygroscopic. When relatively damp materials are injected into a mould, they become splashed, splayed, or cast with mica marks due to steam bubbles and other volatiles disintegrating as the melt flows upon it. …

An Overview of the Use of Plastic Products We need to look at how the polymer pellets are produced to understand the full life cycle of the process. It is at the stage of production that the overall process of injection molding starts. In this stage, raw materials from the earth are transformed into polymers …

8 key considerations for injection molding design Plastics are formed and shaped similarly to metals. It is necessary to consider 3 components when determining the appropriate material on how to design an injection molding: (a) functional requirements, (b) long-term consequences (dimension stability and wear resistance), and (c) how the product will be disposed of after …

In 1953, Toyota Motor Company implemented the just-in-time (JIT) production concept in a large scale to reduce waste of capital, manpower, and materials in manufacturing. The concept originated in the United States. The JIT approach aims at: Just-in-time delivery of supplies Make subassemblies from just-in-time parts Subassemblies are produced just in time for assembly Ready-to-sell …

Various Plastic Molding Process There are many similarities between the plastic molding and metal molding. A liquid or semifluid state of plastic is formed by heating and pressing it into a mold. The following sections provide an overview of some of the most popular molding processes. Injection Molding Plastic injection molding is used to make …

Besides producing plastic parts of very complex geometry, injection molding can also mean high production rates. Materials such as thermosetting and thermoplastics can both be used in the process to produce products that meet a variety of end-use needs. A number of aspects need to be considered when designing plastic parts, including aesthetics, functionality, and …