The application trend of the hottest full hydrauli

2022-09-21
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The application trend of full hydraulic short stroke die forging hammer in the future forging industry

1 the development trend of China's forging industry in the new millennium

with the application of modern science and technology in the automobile, motorcycle and aerospace industries and the acceleration of China's accession to the WTO, the economic structure of market internationalization and procurement globalization is gradually formed. China's forging industry will face new development opportunities and gradually move towards specialization, scale Transformation of commercialized production mode; The demand for forgings will gradually show the trend of lightweight, precision, complexity and diversification; The popularization of refined production technology and equipment of forgings and the application of new materials have become an important means for many forging enterprises to improve their market competitiveness

the lightweight of forgings is mainly reflected in the application of new materials. Magnesium, aluminum, titanium alloys and other non steel forgings are increasingly used in the automotive industry. In addition, non steel forgings have high requirements for production equipment, technology and materials, so the added value of their production is also high. At present, steel forgings in the United States and Canada account for 95% of the total volume of small and medium-sized forgings, while the corresponding sales account for only% of the total volume, while the sales of non steel forgings, which account for 5% of the total volume, account for more than 20% of the total sales

the precision of forgings is mainly reflected in the application of precision forging technology. In recent years, the application of extrusion forming, cold forging, cold warm forging, powder forging and other high-efficiency, high-quality, high-precision, energy-saving and material saving processes has gradually attracted people's attention. The related processes and equipment have also been developed in recent years, with the development trend of gradually replacing some hot forging

complexity of forgings with the improvement of the lightweight requirements of cars in China, the transmission structure of cars is becoming more and more compact and compact, and the structure of forgings tends to be rationalized and relatively complex. In order to ensure the fatigue strength requirements of parts, the types of complex parts that need to be forged and formed are also increased

diversification of forgings at present, the development of China's automotive industry has shown a trend of diversification, especially the development of household cars. In order to meet the needs of different consumers, the car market has shown a pattern of common development of multiple brands and varieties. The total demand of the market has increased, but there are also more brands of cars. Multi brand cars have redistributed the limited market, which will inevitably lead to the diversification of the demand for forgings

in order to meet the "four modernizations" needs of lightweight, precision, complexity and diversification of forgings, forging enterprises will face a new round of technological revolution. The application of "three new" technology characterized by new materials, new processes and new equipment is gradually becoming the conscious practice of our forging practitioners and providing a strong guarantee and goal for material measurement

2 the "four modernizations" requirements of forgings will inevitably promote the development of "three new" technologies

2.1 the application of new materials

with the increasing proportion of magnesium, aluminum, titanium alloys in automotive parts and the large-scale production of parts in the decoration hardware industry such as copper joints, copper faucets and so on, the demand for nonferrous metal forgings is increasing, and nonferrous metal forging shows an upward trend. Because the forging temperature of non-ferrous metals, especially aluminum and copper alloys, is low, and the initial and final forging temperature range is small, the forming speed and corresponding forming equipment are higher than steel forgings. Therefore, it has the characteristics of flexibility and fast adaptation. 2) the accuracy indicators of environmental parameters in the working chamber of the climate chamber (such as temperature, humidity, salt spray sedimentation rate, etc.) are the results of the detection under the no-load state. The forging hammer forged with colored metal will be applied

2.2 the application of new technology has become the target of many scientific researchers. The precision of forgings puts forward higher requirements for forging forming technology and equipment. According to relevant research results, for forgings with simple shape, cold die forging and warm forging forming processes can be used, which can not only improve the dimensional accuracy of forgings, but also improve the utilization rate of materials. At the same time, it can also save the edge cutting process after forging, and even machining process. It not only reduces energy consumption, but also improves productivity. For parts with complex shapes, powder forging process can be used. In recent years, powder forging process has been successfully applied in the forging of gears, connecting rods and other parts. Its products not only have good dynamic balance performance, but also have uniform material distribution and high dimensional accuracy

production research shows that powder forging has four advantages over ordinary die forging:

(1) low energy consumption, and the energy consumption of powder forged connecting rod is only 50% of that of ordinary forging

(2) the utilization rate of materials is high, up to more than 80%-90%, while that of ordinary forging is only 40%-60%

(3) powder forging has high precision, good mechanical properties, and no segregation and anisotropy in the internal structure

(4) powder forging can produce parts with complex shapes

2.3 application of new equipment

due to the promotion and application of new materials and new processes, the corresponding forming equipment has also obtained a broad development space. In order to meet the requirements of "four modernizations" of forgings, forging equipment is gradually developing towards high efficiency, high precision, high reliability and low energy consumption. China's forging industry is scattered, and the screw used in the process is Germany's ulleneff high-precision gapless ball screw. The level is backward, the forging forming equipment is aging, and the production capacity of ordinary die forgings is very surplus. However, the production capacity of precision forgings that can meet the German din7526e standard is obviously insufficient, and there is a large gap with foreign countries. In order to meet the needs of the international market, we vigorously promote process transformation and actively adopt new equipment, It is becoming the only way for China's forging industry to go abroad to meet the challenges of its peers in the world

3 characteristics of full hydraulic short stroke die forging hammer

full hydraulic short stroke die forging hammer gives full play to the advantages of traditional forging hammer, such as flexibility and fast forming speed, and comprehensively uses modern transmission and control technologies such as hydraulic and electrical appliances. It is a new type of forging equipment with high efficiency, energy saving, high precision and high reliability. Compared with traditional vacuum hammer and existing electrohydraulic hammers at home and abroad, it has unique advantages

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