Views: 1 Author: Site Editor Publish Time: 2016-08-30 Origin: Site
After forging, precision forging is refers to the parts only need a small amount of processing or processing is no longer meet the requirements of the parts dimension precision forming technology.Precision forging forming ways there are two main types: the elaboration blank, namely direct forging blank that could satisfy the requirement of precision machining.Precision forging, the whole parts or parts directly USES the precision forging process, thus reducing machine.Many currently used in production of precision forging process.According to the different forming temperature can be divided into hot forging, cold forging, warm forging, composite precision forging, etc.
1, hot forging process
Hot forging is refers to the above the recrystallization temperature of precision forging technology of forging.Because of the high deformation temperature, in the forging deformation resistance of materials is low, good plasticity, so prone to forming complex geometry parts.
2, cold precision forging technology
Cold precision forging technology is at room temperature for forging a precision forging forming technology.Due to room temperature, avoid because of the size error caused by heat bilges cold shrink, so the precision cold forging workpiece shape and size is easy to control, forging surface does not produce oxidation and burning at the same time, with high surface quality and so hot precision forging and precision forging forging precision temperature lower than the cold precision forging.
3, warm precision forging process
Warm forging is to put the metal heating to a suitable temperature below its recrystallization temperature of forging a precision forging technology.It also has the advantages of hot forging, cold forging and avoid their defects, effectively reduces the load of equipment and mold, plasticity and fluidity of the metal, forging annealing is not required.
4, composite precision forging processComposite precision forging process will be cold, warm, hot forging process are combined together to complete a workpiece forging a forging technology, it can play the advantages of cold, warm, hot forging, to avoid the cold, warm and hot forging defects.Adopted complex at the same time the production of precision forging parts of its mechanical properties, dimensional accuracy and surface quality is using a single forging production parts are improved.At present commonly used composite precision forging process is mainly of warm forging - cold finishing, hot forging, cold forging, warm extrusion, rolling, cold warm precision forging, cold extrusion, hot forging, cold rolling, etc.
These are some of the traditional methods of precision forging, hope can help to you.
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