Modeling and fabrication of casting models

Manufacture of molds and casting models

Molding is one of the basic processes in the production of metal parts. With the new technologies in the last decade, suitable molds are prepared for making all kinds of parts based on the type of manufacturing process. Some of the most important molds are casting molds, plastic injection, forging and pressing. In this article, we will exclusively design casting molds.

Molding and modeling for fast production

Pegah Modeling Workshop is a production complex that, due to the production characteristics of the compressor and its parts, has specialized units for cast iron casting molds, aluminum casting molds, and molding and modeling molding and precision casting molding units. Pegah Modeling offers its services to other companies as well.

Due to the company's approach to reducing the cost and speed of production of parts, each of these casting units and molding and casting modeling have been assembled with the best efficiency and approach to the lowest cost in Bring the casting modeling industry.

This complex is ready to provide services and cooperation with various production and industrial units.

Casting parts: precision casting - aluminum casting - cast iron casting - sand casting - steel casting and…

Molding and modeling: Molds and models of precision casting and molding - Rigging molds - Vacuum molds - PET molds - Industrial molds - Rubber molds and… with the best accuracy and quality in Iran

CNC milling services

Types of metal forming

For forming metals; The metal with which the piece is to be made; It starts to heat in the oven to form a kind of dough and of course does not melt.

It then shapes it in three ways.

1. Navard
2. Extrusion or extrusion
3. Shaping with forged mold

Types of metal casting

The process of pouring and solidifying molten metal poured into the mold. In the casting process, the molten solid is heated to a suitable level and then cast into an empty cavity or mold; Pour to form the desired shape after freezing. As a result, it is possible to produce any simple or complex shape from any molten metal in one step.

The range of size and weight of parts that can be produced by casting method is very wide and from a one millimeter piece weighing less than one gram (such as buttons, zipper parts, gold, etc.) to large multi-ton parts (such as propellers and ship parts) Includes .

The casting process has significant advantages in making complex shapes, parts with hollow parts or internal cavities, parts with irregularly curved surfaces, very large parts, and parts made of metals that are difficult to machine.

The main differences between different casting methods are the material of the mold (sand, brass, ceramic, etc.) and the method of pouring the melt (gravity, vacuum, high or low pressure, etc.).

The method of casting metal parts is divided into two main categories:

1. Gravity Casting
2. Die-casting

Types of molds and methods of gravity casting

In these casting methods, the molten metal is poured slowly and under gravity into the casting mold and then cooled. There are three categories of molds or casting models suitable for this method.

1. Casting in the form of sand casting
2. Precision casting or wax mold casting
3. Casting in permanent metal molds or casting molds

Sand casting mold

In this method, the grains of refractory material (such as silica) are mixed with small amounts of other materials such as clay, glue and water and pressed around the model, which has the shape of the desired part. If it is necessary for the model to come out of the mold before pouring the melt, the mold must be made in two pieces or more.

Characteristics of casting in the form of sand casting

Scores:

There are almost no restrictions on shape, size, weight and complexity Almost any metal can be cast.

Limitations:

Tolerance and surface polishing are not as good as other casting methods. Usually some machining is required.

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