282374-1 TE SOCKET Terminal Connector Electronic Parts 0-0282374-1

In the past two decades, it has been a period of rapid development of the automotive industry technology. Automotive manufacturing technology and manufacturing technology have made significant progress. It is impossible to involve all the new technologies and new technologies of automobile manufacturing, and only a few typical examples are cited.

One high -speed dry cutting process

High -speed dry cutting processing uses a high cutting speed for cutting speed without cooling and lubricant. It uses compressed air or other similar methods to remove dandruff to control the temperature in the working area. Practice has proved that when the cutting parameters are set correctly, 80%of the heat generated by the cutting can be taken away by dandruff.

High -speed dry cutting has become a new trend in the development of various gear manufacturing processes. As long as the process parameters are selected reasonably, and the new hard alloy knife is used to cut high -speed cutting, the processing time can be greatly shortened and the tool has a longer life. Japan's Mitsubishi Corporation and the United States have carried out effective research in this regard, and have been applied in the automotive industry.

Japan Mitsubishi launched the world's first dry rolling system. The cutting speed it uses is a few times the traditional roller cut speed, which can reach 200m/min. The dry rolling cut has special requirements for the roller knife. The special dry rolling knife designed by Mitsubishi Company uses Mach7 high -speed steel with a special coating on the surface to help heat dissipation and reduce the loss of the knife. 5 times the cut method. This system has the same effect in processing the end -stage transmission gears, large load gears, car races and planetary gears in the process of processing vehicles, and the production cost is at least 40%.

The United States Greson uses a hard alloy roller to use a dry cutting method on the Phoenix machine tool to process the gear. Compared with the traditional high -speed steel knife, it can reduce the cutting time by 50%, and the surface roughness of the gear is significantly reduced significantly. The geometric accuracy is greatly improved. The interior of the bed is used in a circular cooling method to facilitate the maintaining thermal balance. In addition, the machine tool is equipped with a vacuum dander -removing dust removal system. This series of rolling machines can reach 3000r/min.

The US Fitt-Fette uses a hard alloy knife-cut rolling gear to significantly reduce the processing time and cost of the gear. The KC250H dry -type dried teeth machine developed by Japan's Ken Tengtan Iron Worker uses a hard alloy knife, cold wind cooling and trace lubrication for high -speed teeth. Because the temperature is stable, the thermal deformation of the workpiece is extremely small.

High -speed dry cutting method has the following advantages: First of all, because it saves the process of oil chips separation, there is no cooling lubricating fuel tank and oil crumb separation device, and the corresponding electrical equipment. The cost of processing is greatly reduced. In order to further extend the life of the tool and improve the quality of the workpiece, use 10 to 1000ml lubricating oil per hour during the dry cutting process of the gear. The chips generated by this method can be considered as dry and chipped, and the accuracy, surface quality and internal stress of workpiece are not negatively affected by trace lubricants.

Compared with wet cutting, dry cutting not only greatly improves the production efficiency of machine tools, reduces the processing costs of workpieces, but also is conducive to protecting the environment and saving natural resources. In foreign countries, the research and application of dry cutting have been widely used. According to statistics from relevant departments, nearly half of the companies in Western Europe have adopted dry cutting processing. Although some institutions in China are engaged in this research, the application of the gear processing field is still blank.

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