Views: 6 Author: Site Editor Publish Time: 2016-07-04 Origin: Site
The technology of producing products that meet the requirements of the parts in the process of forging and forming, or no longer machining, is called the precision machining. There are two ways to achieve precision forging production: refined blank, blank meets the requirements of precision forging. Precision forging parts or parts, this part of the body by forging and directly, thereby reducing the amount of machine. At present there are many kinds of technology in precision forging. Hot forging, cold forging, warm forging, forging and other composite is divided according to the different forming temperature.
1, Hot forging process
Hot forging refers to forging forging above the recrystallization temperature of the. Because the deformation temperature is high, the deformation resistance is low, and the plastic is good in the material, so the shape of the parts can be used in this method.
2, Cold forging process
Cold forging process is a kind of precision forging forming technology at room temperature. Due to the forming of room temperature, thermal expansion and contraction caused by size error is not generated, so cold precision forging workpiece shape and size is easy to be controlled, and did not affect the oxidation and burning in forging surface, surface quality also have very high standards, so hot precision forging and forging at middle temperature forging precision were than cold precision forging.
3, Warm forging process
Warm forging is a precision forging technology of metal is heated to a suitable temperature below the recrystallization temperature of forging. Hot forging and cold forging of the advantages of it all has the hot and cold forging defects but no, equipment and mold load greatly reduced, the metal plastic and liquidity has been improved, no need to forge annealing.
4, Composite forging process
Cold, warm and hot forging technology combined together to complete a work piece forging a forging technology is in line with the precision forging process, it can play cold, warm and hot forging the advantages and avoid the disadvantages of cold and warm and hot forging. The mechanical properties, dimensional accuracy and surface quality are improved with the parts in the forging process. The warm forging cold fine whole, hot forging - cold forging, warm extrusion - cold rotary forging, warm forging cold extrusion, hot precision forging cold rotary forging etc. is main with precision forging process.
Above is about the precision forging technology, some of the summary, hoping to give you help.
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