On April 22, Cummins launched the first Beijing International Road Transport Vehicle Exhibition with its BMW Euro III, Euro IV, and European V series light, medium, and heavy-duty vehicle engines. Cummins has a full range of diesel fuels, alternative fuels, and engines that are perfectly matched to the hybrid system. The power covers 109 to 600 hp, meeting Euro III, Euro IV, Euro V/EEV, and US EPA 07, 2010 emission standards in electronic control technology and The emissions sector has a leading edge. In terms of vehicle diesel engines, Cummins’ product line continues to expand. Currently, Cummins has a total of 2.8 liters, 3.8 liters, 4.5 liters, 6.7 liters, 8.3 liters, 9 liters, 10.8 liters, 11.9 liters, and 15 liters. Medium and heavy vehicle market. The Cummins B series is a proven and mature model with more than 4 million units worldwide, and the electronically controlled ISB series has sold more than 70,000 units in Europe alone. The new generation of ISL power and torque is further enhanced, and the design features of heavy-duty machine are enjoyed, and the compact structure and lightweight body are maintained while maintaining high durability and reliability. Cummins's third-generation C-series enhanced natural gas engines use highly efficient ECM-controlled fuel systems, sensors, and high-efficiency ignition systems to provide a high degree of digitization with excellent stability and acceleration. The new ISF 3.8-liter light-duty diesel engine and the ISM11-liter state-fourth heavy-duty diesel engine are the latest results of Cummins' local production in China. It inherits Cummins' 90-year technological process and has excellent reliability and durability, and seamlessly connects with the vehicle platform. Good versatility, long operating cycle, low overall cost of use. At the same time, the Cummins ISF and ISM series both landed at the 2009 Shanghai International Auto Show, adding luster to the launch of new commercial vehicles such as the Foton high-end light trucks Omar, Shaanxi Auto F3000 and Valin. In terms of new energy vehicle technology, Cummins is one of the first engine manufacturers to develop new energy technologies such as hybrid power, alternative fuels, and biodiesel. Its application range covers passenger cars, trucks, ships, construction machinery, railways, and power generation systems. . Currently, Cummins ISB and ISL electronically controlled engines have been successfully used in the hybrid bus markets in North America, Europe, and China, including Beijing, Guangzhou, Hangzhou, and Wuhan. For the Euro V standard to be implemented in Europe in October 2009, the Cummins ISB and ISL series 4.5 to 8.9 liters of fully electronically controlled ultra-low emission diesel engines have achieved volume support with major European passenger car plants ahead of schedule and can achieve more than Euro V. For strict EEV standards. Since the implementation of the Euro IV standard in 2005, Cummins SCR emission technology has been successfully applied to more than 200,000 vehicles in Europe. In China, Cummins first cooperated with domestic passenger car companies to introduce advanced engine technology at the early stage of new car development to improve the dynamics and economy of vehicles. In 2002 and 2006, Cummins took the lead in realizing batch matching of Euro III and Euro IV vehicles. Wang Hongjie, vice chairman of the Cummins (China) Investment Co., Ltd. and general manager of the East Asian engine division, said that Cummins will continue to pursue the "clean power, service China" commitment to face the unprecedented global economic crisis and cooperate with customers to cope with the difficulties, It is Cummins’ current priority. CNC Milling Machine is an automatic processing equipment developed on the basis of general milling machine.The processing techniques of the two are basically the same, and the structure is somewhat similar.CNC milling machines are divided into two categories: without a tool magazine and with a tool magazine.The CNC milling machine with a tool magazine is also called a machining center. Cnc Milling,Desktop Cnc Milling Machine,Cnc Milling Machine,Cnc Mill Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hostoncncs.com
Features
In addition to the characteristics of ordinary milling machines, CNC milling has the following features:
1.The parts are highly adaptable and flexible, and can process parts with particularly complicated contour shapes or difficult to control dimensions, such as mold parts and shell parts;
2.It can process parts that cannot be processed or difficult to machine with ordinary machine tools, such as complex curve parts and three-dimensional space surface parts described by mathematical models;
3.Parts that can be processed in multiple processes after being able to process a single clamping position;
4.The processing precision is high, the processing quality is stable and reliable, the pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1μm. In addition, the numerical control processing also avoids the operator`s operation error;
5.High degree of production automation, can reduce the labor intensity of the operator. Conducive to the automation of production management;
6.High production efficiency. CNC milling machines generally do not need special process equipment such as special fixtures. When replacing workpieces, it is only necessary to call the machining program, clamping tool and tool data stored in the numerical control device, thus greatly shortening the production. cycle.
Secondly, the CNC milling machine has the functions of milling machine, boring machine and Drilling Machine, which makes the process highly concentrated and greatly improves the production efficiency.
In addition, the spindle speed and feed speed of the CNC milling machine are infinitely variable, so it is beneficial to choose the best cutting amount.