Thursday 20 February 2014

Use Of Austempering


The process of Austempering was used extensively during World War II in the production of gun parts. It was found that this process resulted in parts and low distortion that were tougher than the tempered and quenched components they replaced. Some important gun parts are still routinely Austempered. However, the best equipment available for this process then was very inefficient. Therefore, this process was relatively very expensive.

The main aim of austempering is to provide the strength driven materials in different machine parts. The concept of this process is different from the traditional form of heat treating, in which there is fast quenching of austenite in fluid or oil at room temperature. It will form the martensite, which is hard, but at the same time, it needs tempering for becoming ductile and it is highly brittle.
The outcome of this process is dependent on the material used for the it.

The Austempered Ductile Iron is a specialty heat treated material that takes advantage of the low cost manufacture-ability and near-net shape technology of ductile iron castings to make a low cost, high strength, and excellent abrasion resistant material. Six grades of this process are available to address the property combinations of abrasion resistance, high strength, weldments and assemblies and toughness for converting from costly forgings. The Austempered Ductile Iron has found successful applications across many industries, including Mining and Construction, Agriculture, Heavy Truck, Railroad and Automotive.

Overall, this process is a well composed process, which helps to enhance strength, resistivity for wear and tear and toughness. It is better to get the process done through the commercial company of heat treating as they will work with proper processes.

Saturday 1 February 2014

A New Treatment to Ductile the Iron Parts

Applied process is a global group of commercial heat treats that specializes in Austempering process. The authority in this process get to paid to heat treat the parts of people but what they really do for a living is help the customers to replace one process/material combination with a faster, better and cheaper one. Applied process is working as a reliable step in manufacturing process or as a cost effective supplier of outsourced austempering services and you will find them as cost effective and no problem kind of collaborator. Austempering make the steel and iron parts stronger, tougher, quieter, lighter, greener and wear resistant.  

In heating treating industry,  applied process has been a technology leader since 1978. Its roots were forged in 1962. There introductory product was a controlled atmosphere continuous belt type austempering belt capable of processing 680kg parts per hour. Austempering is a specialized heat treat isothermal process that imparts superior properties to ferrous metals. These metals gains toughness and strength due to the unique micro-structure gained through this process.

The product Carbidic Austempered Ductile Iron or CADI is produced by austempering ductile iron that has a controlled volume of carbides present for an greater abrasion resistant material. The resulting micro structure consists of carbides within an ADI matrix - ausferrite. The amount of carbide in CADI is dependent upon the desired abrasion resistance with the typical ranges of 10 to 30% carbide present. The properties of the ADI matrix surrounding the carbide are determined by the selection of the heat treatment parameters.