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Production technology of Automobile Forging
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Jiangsu Huanhai Machinery Technology Co., Ltd. has special opinions on the production process of forgings

The primary benefit of careful forging compared with traditional die forging is its lower material consumption (less than 60%). The forging process is as follows: blanking - heating (850 ± lo ℃) - upsetting - pre forging - trimming - air cooling, blast cleaning - heating (850 ± 10 ℃) - final forging - trimming - air cooling, grinding - warehousing. FIG. 4A: Die preheating Fig. 4B: temperature measurement and control of forging object only lasted for a few seconds. 1. Open die forging process of friction press when open die forging straight bevel gear with friction press, one forging can not ensure that every tooth cavity can be completely filled, that is, the product rate is low, and it needs to cut off the flash and forge again, so the open die forging of gear should be formed by two steps of pre forging and final forging. The open die forging of straight bevel gear with friction press includes warm forging, warm forging, fine finishing and hot forging There are three processes of warm forging and cold forging. For warm forging and cold forging, because of the low heating temperature of pre forging, the temperature drop is fast because of the long history and fast heat dissipation.

Because of its own interests, careful forging is a popular technology to produce relatively expensive auto parts. The experiment proves that the joint of CO 2Cr 2Mo alloy extracted from human body has not been eroded in most cases. On this basis, gear forging technology is further applied to the production of spiral bevel gear and cylindrical gear. After that, the craft spread to the United States and achieved rapid growth. At that time, the domestic friction press was the main forging heating method of the hot precision forging forming press, and the coal stove or gas heating method was used to gradually grow to the medium frequency induction heating process, and the "one fire two forging" or "two fire two forging" process was mostly used. The flow discipline, stress-strain distribution, temperature field distribution of metal, temperature field distribution and stress field distribution of die in crankshaft forging process were analyzed. Then, through a series of simulation, the effects of friction coefficient on forging filling, high temperature of die, and the effects of friction coefficient, press speed and die hardness on die wear were analyzed The shadow discipline between them is obtained by the two multiplication fitting of the term.