Type of Castings

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Different Types Of Casting To Suite Your Casting Necessity

There are different processes that can be used in creating complex shapes of metals parts and one procedure is through casting. Casting is a manufacturing method wherein a liquid material is transfer

red into a mold, usually following a hollow cavity of the desired shape, and then allowed to solidify afterwards. It has been used even in the past and one example or type of casting is die-casting.

The die casting method is a process of forcing molten metal under high pressure into mold cavities similar to permanent mold casting. It best suites the purpose of making small to medium sized parts fashioned with good and precise details. By-products of this method are furnished with fine exterior finish and dimensional accurateness. Most materials used in this method are metals such as zinc die casting, copper, and aluminium die casting and magnesium die casting.

Another form of casting which is considered to be the most popular and simplest type is sand casting. It is a technique that has been used for many centuries now. Sand casting is a process of forming a mold out of a sand mixture through pouring a casting liquid into a desired shape. This type of casting allows manufacturers to create large number of products in such a small range of production expenses. Most metals are caste depending in the type of sand used for the molds in this method.

An additional process that can be also used is Plastic molding. It is a manufacturing technique in making parts from both thermoplastic and thermosetting plastic materials for production. It includes plastic injection molding wherein molten plastic is injected at high pressure into a mold, which is the opposite from the product’s actual shape. Example by-products of this method are bottle caps and outdoor furniture.

Moreover, a further technique is cold forming. It is also known as cold forging. Cold forming is a manufacturing procedure in which a metal is shaped at an ambient temperature to produce metal components in a definite shape. The techniques usually involved in this procedure are bending, cold drawing, cold heading, coining extrusion, thread rolling and others.

Some benefits of cold forming are enhancements in the component properties of the product because the grain structure of the material is being elongated during the formation process wherein it is forced to follow the structure and as a result its’ strength is increased. Another benefit of cold forming is that the aesthetic finish of the components gives out a brighter facade and formed with a consistent high tolerance. These somehow reduce the necessity of complex finishing and polishing.

These are only some of the different kinds of casting. Other types of casting aside from die-casting, cold forming and sand casting of metals are plaster casting, shell molding, investment casting, permanent mold casting, centrifugal casting, continuous casting and casting of plaster, concrete, or plastic resin. Each type of technique has specific and unique routine that allows you to produce superior outcome and high-quality by-products to best suite all your casting needs for your manufacturing use.

Plastic Mold

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Plastic Mold & plastic Molding

Several years ago we were in 2 business models. One was Plastic molding and the other was plastic  mold building. Shortly after the Chinese became a threat to our tooling or mold building industry we decided that we needed to pick one business model or the other. We decided that we would best serve our stockholders by choosing to be a manufacturer of plastic injection parts of a nature that we began to call “Crazy Jobs No One Else Will Do”.

Therefore we were no longer in the Plastic mold building business as a primary function to our end goals. What we have become is responsible for all the mold construction that we sell to our customers that is the means to the end better known as a finished plastic product. We turned our mold building facilities into a production machining line for value added services to the plastic products. We use our machining facilities to finish machine dimensions to the fourth decimal in plastic parts.

Now when it comes to building plastic mold what we now offer is much more valuable than we ever could have offered. We work with several highly qualified plastic injection mold builders around the world including China, Taiwan, Germany and England to get the customer the best possible mold to suit the application requirements. We take full responsibility from start to finish. Here is what we offer:

1) Tool design knowledge that will help us pick the best mold building facility
2) Tool construction project management.
3) First article testing and final approval of all dimensions to meet the customer’s requirements.
4) Free tooling maintenance for the life of the tool as long as it stays at PMT.

One stop shopping for the entire process. We will make sure you get off on the right foot from the start of the product design all the way to getting the parts through first article approval and ready for production.