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LIKEN Technology:Forging process introduction

LIKEN Technology:Forging process introduction

Release date:2016-08-11 00:00 Source:http://www.wwwjsqxmjg.com Click:

 

Forging is a kind of pressure on the metal material by forging machinery, the processing method of plastic deformation in order to obtain a certain mechanical properties, shape and size of forging, forging (forging and stamping) the two part of. By forging can eliminate the casting defects such as loose metal produced in the smelting process, the microstructure is optimized, and the preservation of the integrity of the metal flow, the mechanical properties of forgings generally better than the same materials of casting. The important parts with high load and working conditions in the relevant machinery are more than the shape of the sheet, profile or welded parts, which are easy to be rolled.

deformation temperature

According to the deformation temperature, forging and can be divided into hot forging (forging temperature is higher than the recrystallization temperature of the billet metal), warm forging (forging temperature is lower than the recrystallization temperature of metal) and cold (room temperature). The recrystallization temperature of the steel is about 460 degrees C, but it is generally used as the dividing line, and the hot forging is higher than 800 degrees centigrade, and the hot forging is between 800 and 300.

Closed die forging and closed die upsetting

The material utilization rate is high because there is no fly edge. It is possible to finish the finish machining of complex forgings with one working procedure or several working procedures. Because there is no fly edge, the stress area of the forging is reduced, and the required load is reduced. However, be careful not to be restricted entirely blank, this should strictly control the volume of blanks, control the relative position of forging die and forging measure, efforts to reduce die wear.

Movement of blank

According to the movement of the blank, forging can be divided into free forging, upsetting, extrusion, forging, closed die forging, closed upsetting.

1, free forging. The use of impact or pressure to make the metal in the upper and lower two iron (anvil) between the deformation to obtain the required forgings, mainly manual forging and forging two kinds of machinery.

2, die forging. Die forging is divided into open die forging and closed die forging. Metal billets forging die with a certain shape deformation of the chamber pressure for forging, can be divided into cold forging, roll forging, radial forging and extrusion etc..

3, closed die forging and closed upsetting because no flash, high material utilization rate. It is possible to finish the finish machining of complex forgings with one working procedure or several working procedures. Because there is no fly edge, the stress area of the forging is reduced, and the required load is reduced. However, be careful not to be restricted entirely blank, this should strictly control the volume of blanks, control the relative position of forging die and forging measure, efforts to reduce die wear.


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