1 Piece Forged Wheels Improve Its Organizational Structure
1 Piece forged Wheels Improve its organizational structure
Forging is one of two major components that use a forging machine to apply pressure to a metal blank to produce plastic deformation to obtain a machining method with a certain mechanical properties, a certain shape and size forging, forging (forging and stamping). Through forging can eliminate the metal in the smelting process caused by the casting of loose and other defects, optimize the microstructure, and because of the preservation of a complete metal flow line, forging mechanical properties are generally better than the same material castings. Related machinery in the load high, severe working conditions of important parts, in addition to the shape of the available rolling sheet, profiles or welding parts, the use of forgings. Compared with the casting, the metal after forging processing can improve its organizational structure and mechanical properties. Casting organization after forging process thermal deformation due to metal deformation and recrystallization, the original coarse dendrites and columnar grains into fine grain size, uniform size of the equiaxed recrystallization organization, so that the original ingot segregation, Loose, porosity, slag and other compaction and welding, the organization becomes more closely, to improve the plasticity and mechanical properties of the metal.
The mechanical properties of the castings are lower than those of the same material. In addition, forging processing to ensure the continuity of metal fiber organization, so that forging the fibrous tissue and forging shape consistent, complete metal line, can ensure that the parts have good mechanical properties and long service life using precision die forging, cold extrusion , Temperature extrusion process for the production of forgings, are cast can not match
Forgings are objects where the metal is applied with pressure, shaped by plastic deformation, or a suitable compressive force. This force is typically achieved by using a hammer or pressure. The forging process builds fine particle structures and improves the physical properties of the metal. In the practical use of components, a correct design can make the flow of particles in the direction of the main pressure. Castings are made of various casting methods of metal forming objects, that is, smelting a good liquid metal, with casting, injection, inhalation or other casting method into the prepared mold, after cooling down the sand, clean up and after Processing, etc., obtained with a certain shape, size and performance of the object. Different forging methods have different processes, in which the process of hot forging the longest, the general order: forging blanking; forging billet heating; roll forging blanks; forging forming; trimming; punching; The inspection, the general forgings to go through the appearance and hardness of the inspection, the important forging also to ensure that the forging stress, to improve the metal cutting performance; cleaning, mainly to remove the surface oxide; To undergo chemical composition analysis, mechanical properties, residual stress and other tests and nondestructive testing.