Modern High Pressure Die-casting Processes for Aluminium ...

| 1 |TRANSACTIONS OF 61st INDIAN FOUNDRY CONGRESS 2013 INTRODUCTIONA luminium was discovered in the year 1825 by a Denmarkscientist Mr. Hans, using chemical process. Due to veryhigh cost, equivalent to that of silver, there was no majordevelopments until the Electrolysis method wasinvented by Charles M Halls. New developments the year 1876, the first Aluminium casting wasproduced using sand moulds. By 2010, there about 33plus different methods are available. Out of these, one ofthe most commercially successful process is Conventional high Pressure Die-casting . But it has somemajor drawbacks as well, such as air and gas blow holes, shrinkages, severe surface defects like cold shuts, swirl,sink and many more. These are also unable to weld andheat-treat to enhance the mechanical properties of thecastings. To overcome these defects, many newerprocesses have come up. In these, the above drawbacksare overcome, casting strength is increased, castablecasting minimum wall thickness has come down from 6mm (sand casting ) to mm in the Vacuum die-castingsand still upto marvellous achievements are very muchadvantageous to the highly competitive auto high Pressure Die-casting Processesfor Aluminium CastingsABSTRACTT here are about 33 Processes commercially available for the production of Aluminium castings.

| 5 | TRANSACTIONS OF 61st INDIAN FOUNDRY CONGRESS 2013 parts which require high strength, endurance, ductility are now made using this process. Hitachi Vacural Process ( HIVAC–V ): This is also a modified form of ‘Vacural Process’ which is used for

Tags:

  High, Processes, Pressure, Modern, Casting, Modern high pressure die casting processes

Information

Related search queries