CNC Machining China blog - Precision CNC Machining Solution for Metals

Process Analysis of C NC Machining Parts Drawing   (1) The method of dimensioning in the drawings of CNC machining parts   The size on the part drawing is an important basis for manufacturing and inspecting parts. In the production (Produce), the size of the part drawing is required to be free of any errors. CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine,   laser   cutting   china , etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In addition to correct, complete, and clear requirements for marking the size on the part drawing, rationality should also be considered. It should not only meet the design requirements, but also facilitate processing and measurement. ? Regarding dimensioning, it mainly includ...

It is an extremely quick and simple task to check the bulbs of lamps outside the car for burnout failures. However, it is not so simple to maintain a comprehensive system of exterior lamps. Timely maintenance of exterior lights is very important to the driver, because it not only affects the comfort of driving, but also directly affects the safety of driving. It is often difficult for car owners to realize that the headlights, taillights, turn signals or parking lights are not working properly before being reminded. By the way, the work of replacing a burnt out bulb is very simple, and the cost of DIY is lower than the charging standard for maintenance of the lighting system at the repair station. In more cases, the failure of car lights is by no means limited to small problems such as bulb burnout, rusty socket or damaged plug. It is often necessary to adopt professional diagnostic techniques to analyze the root cause of the failure. Even for the most expe...

The cutting efficiency of CNC lathes will be affected by human factors, environmental factors and the machine tool itself. Let's talk about the influence of cutting amount and cutting tools on CNC lathe processing among many factors.   Reasonable cutting amount can improve the efficiency of CNC lathe. When the   laser  cutting  speed is increased by 10 times and the feed rate is increased by 20 times, far beyond the traditional cutting forbidden zone, the cutting mechanism has undergone a fundamental change.   The result of CNC turning  and milling combined processing is: the metal removal rate per unit power is increased by 30% to 40%, the cutting force is reduced by 30%, the cutting life of the tool is increased by 70%, and the cutting left on the workpiece is greatly reduced. Heat, cutting vibration almost disappeared; cutting processing has taken an essential leap. According to the current situation of CNC lathes, increase the feed per tooth, improve pr...

1. Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass   parts  has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators.   2. Red copper, also known as red copper, is a simple substance of copper, so named because of its purple-red color. See copper parts   for various properties. Red copper is industrial pure copper with a melting point of 1083°C, no allotropic transformation, and a relative density of 8.9, which is five times that of magnesium   parts . The mass of the same volume is about 15% heavier than ordinary steel   parts .   The red copper is generally called red copper because of its rose red color and purple after forming an oxide film on the surface. It is copper containing a certain amount of ...

“The weather is getting cold. A few days ago, it was raining, damp and cold, and the front windshield was foggy. I was panicked.” Miss Guo, who lives in Jiaojiang, just bought a car and has to drive to Luqiao to work every day. Faced with this old problem that seriously affected driving safety, she was at a loss. “I had to turn on the air conditioner and blow on the glass. But when I turned on the air conditioner on a cold day, I would catch the cold as well. This is no good.” The reporter learned that the reason for the fogging of the car windows is “heating inside and cold outside”. When the temperature difference between the inside and outside of the car is large, the water vapor exhaled by the occupants of the car will condense into water vapor when it encounters the cold glass. This is an old problem, but not a small one. Once the line of sight is blocked, accidents may occur within a few seconds. Therefore, defogging...

As we all know, noise is seriously disturbing our daily life, and traffic noise pollution is also a common phenomenon. As long as there is a sudden sound of a horn on the road and the noise of a tyre on the other side, you may have lost half of the good mood of the day. Coupled with the hot summer roasting, it is even more irritating. Have the car owners ever thought about starting from themselves, avoiding making noise, and being a silent roadster? Cooper tires need to overcome difficulties to effectively deal with tire noise and improve driving comfort. Cooper’s ZEONC7 sedan tires adopt a technical coup of “blocking and dispersing”. Speaking of “blocking”, the method adopted by Cooper ZEONC7 sedan tires is to design “noise barriers” on both sides of the tread along the longitudinal direction. Inside the barrier, in order to achieve the effect of mute. When it comes to “scattering”, we have to mention t...

In the summer heat, not only the human body will have various adverse reactions, but also the car. Today, I will share with you one of the things you need to pay attention to in summer-lubricants. The role of lubricating oil The heat generated by the friction between the various moving bearing surfaces of the engine is second only to the heat when the engine cylinder is burned, and the lubricating oil takes the heat away by pressure lubrication, thus ensuring the normal operation of the friction surface. The heated lubricating oil returns to the oil pan through the oil passage for cooling. In terms of the structure of the engine, the oil pan is located under the engine*, and it is exposed to the air. It is generally made of materials with good thermal conductivity, and the lubricating oil is air-cooled through it. The cooled lubricating oil is sent to the lubricated surface again. The viscosity of the lubricating oil is very important for protecting the en...

The research report of the automobile registration method is reported by the Policy Research Association of China Automobile Manufacturers Association. Among them, the motor vehicle registration certificate with the function of the property right certificate can not be carried with the car, so in principle, it is not possible to conduct reselling fraud. This will not only reduce the car rental price, but also relieve the worries of many companies that want to start a car rental business, which is conducive to the development of the car rental industry. The Association of Automobile Manufacturers or the Association of Automobile Manufacturers will provide compensation to the demanders. The information is provided by the traffic control department for a fee. The “Registration Measures” laid a solid foundation for this statistical work. Conducive to improving the quality of automobile products and promoting technological progress_Currently, China's ...

It has become cold in a blink of an eye today. People are more likely to catch colds and get sick during the season. The same is true for cars. If you don’t take care of them well, you are also prone to problems of this or that kind. Do you know how to maintain your car during the season? The face of a car, the face of a person, and the maintenance of a car is very important. However, during the interview, the reporter found that many car owners would hand over all their cars to the 4S shop for maintenance, and other drivers would only perform some simple inspections on the car. As for the temperature drop, what should the car do? Everyone can think of replacing the antifreeze, but it's just two words—I don't understand. Antifreeze is a coolant with antifreeze function, which can prevent the coolant from freezing during winter parking, expanding the radiator and freezing the engine block. Wang Shiguo reminded that two colors of antifreeze cannot be...

With the continuous development and technological progress in the field of metal processing, the concept of green processing has become more and more popular. The traditional lubrication cooling method using cutting fluid is gradually replaced by dry cutting technology. Because dry cutting also has defects for machining, it makes the machining quality drop and the cutting tool wears faster. Micro-lubrication technology emerged at the historic moment. The application of micro-lubrication technology improves the quality of machined parts and reduces tool wear. To a large extent, it solves the impact of dry cutting and will gradually become a technology that is compatible with dry cutting. The application of micro-lubrication technology will gradually replace the cooling and lubricating effects of cutting fluid. … The application of oil mist micro-lubrication technology can solve the lack of dry cutting without lubrication, improve the surface quality of...

  The heat dissipation capacity of the cooling system of the traction converter directly affects whether the converter can work safely and stably for a long time. For the cooling system of the traction converter of the CRH3 EMU, the dimensions and boundary conditions required for model simulation are obtained by actual measurement and dynamic test tests, ensuring the authenticity of the simulation analysis. Using ANSYS/FLOTRAN to simulate the flow field and temperature field of the heat exchanger of the traction converter cooling system in three dimensions. Compared with the previous empirical simplified formula method or experimental measurement method, it avoids the problems of poor calculation accuracy and difficult measurement. The distribution of wind speed, pressure and temperature of the heat exchanger of the cooling system can be easily and clearly obtained. By comparing and designing the temperature change of the coolant inlet and outlet pipes,...

Many countries in the world have cultivated 3D printing as a new growth point for future industrial development. As early as 2012, the United States identified “Additive Manufacturing Technology” as the first manufacturing innovation center (later renamed “Made in the United States”), and the European Union, South Korea, Japan, Singapore, Russia and other countries also adopted various measures to promote 3D printing China Industry moving forward Since the rise of 3D printing, China has successively promulgated a number of policies to support the development of the 3D printing industry. With the support of policies, 3D printing companies have sprung up like mushrooms after a rain, and are growing rapidly. The development of the 3D printing industry in Beijing, Guangdong, Zhejiang, Shaanxi and other places has also made significant progress. According to statistics, there are more than 400 companies engaged in 3D printing business in Gu...

Through the development of wholesale business, the auto parts company’s role as a reservoir of circulation channels is promoted to promote the formation of a hierarchical sales network in the auto parts market. Social outlets are mostly small-scale operations, and are restricted by storage conditions and the variety of models and varieties of repair parts. They always hope to obtain small-batch and multi-batch purchase resources from local wholesale companies. In the past two years, our company has maintained a certain share to carry out wholesale business to social outlets. The normal operation of some outlets has been fostered, and the company’s main channel sales market share and market coverage have been increased. Promote the formation of a hierarchical network of auto repair parts market. In order to further play the role of the reservoir of the main circulation channel, enhance the ability to control the market, ensure supply and sales, an...

　　Measure tire pressure The tire measures every inch of the journey with its own body, which is extremely hard.Therefore, the tire pressure should be measured first to maintain the same tire pressure for all four wheels.If the tire pressure of a certain tire is abnormally low, carefully observe whether the tire is punctured, and repair it in time.If the wound is too large or the wound appears on the wall of the fetus, it can only be asked to retire. There is also the problem of tire dynamic balance.The rough road in the wild may affect the dynamic balance of the tires. The originally smooth car suddenly seems to lose its temper, with abnormal tremors, which indicates that the dynamic balance of the tires has failed.The reason may be the deformation of the wheel hub, tire wear, or it may be that the balance weight clamped on the wheel hub was shaken off during a strong bump. Therefore, it is extremely necessary to rebalance each tire. Oil change During a ...

Automobile anti-theft devices developed from the initial mechanical control to electronic passwords, remote control calls for help, and information alarms. Early anti-theft devices were mainly used to control interlocking mechanisms such as door locks, doors and windows, starters, brakes, and cut off fuel supply, and to prevent thieves. Special socket wrench designed for disassembling parts. With the development of science and technology, automobile anti-theft devices are becoming more and more rigorous and perfect, mainly for the protection of the entire vehicle, and constantly launching new products. three types of vehicle anti-theft alarm Vehicle anti-theft alarms can be roughly divided into mechanical anti-theft locks, electronic anti-theft devices and GPRS network positioning anti-theft alarms One, mechanical anti-theft lock The purpose of anti-theft is achieved mainly by locking the steering wheel and tires. This kind of anti-theft lock only preven...