It all began with the Mangal Group of Companies which was established in the year 1967, having an excellent experience in manufacturing casting industry, we can produce any casting from cast iron to any type of steel or it may be any high grade alloys through sand casting as well as investment casting depending upon part geometry and alloy selection. We can also provide any special alloy, or any pre-casting or post-casting process required by you.
Mangal Iron Pvt.Ltd. began manufacturing investment castings in 2003. Throughout our history, we have taken pride on our ability to partner with clients to solve their casting problems in innovative, cost-effective ways.
Investment casting is an industrial manufacturing process also know as the lost-wax process and is one of the oldest known metal-forming techniques. The process was originally developed over 5,000 years ago when beeswax was formed to produce a pattern to create metal artifacts. Today Investment Casting incorporates high-technology waxes, refractory(ceramic) materials to produce metal components in a wide variety of metals and high-performance alloys with accuracy, repeatability, and integrity.
Ceramic materials are used to build a hollow shell or mold into which molten metal is poured to make the castings. The ceramic materials are first applied as a series of coats around a wax impression of the part or wax pattern to form the ceramic shell or mold. The wax is then removed or melted out from the ceramic shell, the ceramic shell is then fired and the metal of choice poured in the shell or mold to produce the desired part.
The origin of the term investment comes from the solid mold process where a plaster type ceramic material is poured or "invested" into a container where a clustered tree of small wax or plastic patterns are held. These wax or plastic patterns are impressions of the part to be produced. After the plaster or ceramic has set, the wax or plastic patterns are melted or burned out leaving a hollow cavity into which the metal is poured and the metal part is produced.
