September 2020 – Page 43 – CNC Machining & Turning, Milling, Metal parts

CNC processing and maintenance

1. Before machining in each program, it is necessary to strictly confirm whether the tool is consistent with the program.

2. When installing the tool, it is necessary to confirm whether the length of the tool and the selected tool holder are suitable.

3. It is forbidden to open the door when the machine tool is running to avoid flying knife or workpiece.

4. In case of knife collision during the processing of computer gongs, the operator must stop immediately, such as pressing the “emergency stop” button or “reset key” button or setting the “feed rate” to zero.

5. In the same workpiece, each tool setting should be kept in the same area, so as to ensure the accuracy of the tool when connecting the tool, and the operation rules of CNC machining center.

6. If too much machining allowance is found in the machining process, the “single section” or “pause” must be used to clear the X, y, Z values, and then manually mill them off, and then swing back to the “zero” to let them run by themselves.

7. During self operation, the operator shall not leave the machine tool or regularly check the operation status of the machine tool. If it is necessary to leave midway, relevant personnel must be designated to check.

8. Clean the aluminum slag in the machine tool before the smooth knife oil injection to prevent the aluminum slag from absorbing oil.

9. Try to blow with air in the rough opening procedure and spray oil in the light knife program.

10. After the workpiece is off the machine, the burr must be removed in time.

11. When off duty, operators must make timely and accurate handover to ensure the normal follow-up processing.

12. Before shutdown, make sure that the tool magazine is in the original position and the XYZ axis is in the middle position. Turn off the power supply and the general power supply on the operation panel of the machine tool in turn.

13. In case of thunderstorm, the power supply must be cut off immediately.

In addition to the above points, there are many things that we need to pay attention to from time to time. The system should pay attention to, and the machine should also pay attention to maintenance. In fact, most of the time, the machine will break down, to a large extent, and the user’s operation is improper. We do not pay attention to check the machine before starting up, and do not warm up. Some companies have long been in the dark and humid environment because of the bad environment In fact, if we deal with these problems in time, the service life of our machine will definitely be much longer. The machining accuracy and performance of the machine will be as new as before, and the loss will be greatly reduced, and the replacement frequency of parts and components will be greatly reduced It saves a lot of time and cost

If there is any abnormal phenomenon in the operation process, please contact the manufacturer in time to avoid unnecessary loss.

Advantages of CNC machining

CNC computer gongs processing refers to the processing with CNC tools.

1. The accuracy of the work is relatively high, and the quality of the processed products is guaranteed.

2. Even if there are multiple coordinates, there is no need to worry, because it can realize the linkage between the coordinates, and can process parts with complex geometry structure.

3. It is necessary to replace the processed parts, but only need to change the relevant data to realize the work and simplify the work

4. Because the computer gong is automatic, it can reduce the labor force and increase the productivity.

The use of integrated electronic components, chips and VLSI is the guarantee of the reliability of large-scale mechanical parts processing equipment. Many functions are realized by software, which reduces the number of hardware. Rich fault diagnosis and protection functions (mostly realized by software) can reduce the frequency of system failure and the repair time after failure.

2. Computer gong processing, easy to use and maintain

Easy to operate: users only need to follow the menu to operate correctly. Convenient programming: it has a variety of programming functions, automatic program verification and simulation functions. Convenient maintenance and repair: some routine maintenance work is carried out automatically (lubrication, regular inspection of key components, etc.), and the self diagnosis function of CNC machine tool can quickly realize accurate fault location.

3. Computer gong processing is easy to realize mechatronics

The small volume of CNC system control cabinet (using computer, the number of hardware is reduced; the integration of electronic components is higher and higher, and the hardware is constantly decreasing), which makes it possible to combine it with machine tool in physics, reduce the floor area and facilitate operation.

4. Flexibility and versatility of gongs

Most of the functions of mechanical parts processing device are realized by software, and the software and hardware adopt modular structure, which makes the modification and expansion of system functions more flexible. The basic configuration of mechanical parts processing device is universal. Different CNC machine tools only configure corresponding specific function modules to achieve specific control functions.

Daily maintenance of mould

The mold is generally stored in the warehouse until the next production cycle. However, some processing enterprises do not pay enough attention to the mold preservation. Dongguan mold processing makes the mold rust and surface finish decline during the storage period, resulting in the decline of product quality and high rejection rate. Some molds are even difficult to reuse, so a large amount of funds need to be invested to replace new molds, resulting in great waste. The data show that use and maintenance account for 15% – 20% of the factors affecting the service life of molds. The service life of injection moulds can reach 800000 times in general, and some well maintained moulds abroad can even be extended by 2-3 times. However, due to the neglect of maintenance in domestic enterprises, the service life of injection mold is relatively short, which is only equivalent to 1 / 5 ~ 1 / 3 of that in foreign countries. Due to the short service life of die, steel processing time and energy waste, as well as the impact on product quality, the loss of billions of yuan per year.

Regular maintenance can keep the injection mold in good condition. After the new die is tested, no matter whether it is qualified or not, the stress relief tempering should be carried out before the mold is cooled to room temperature. When the new die is used to 1 / 6 ~ 1 / 8 of its design life, i.e., 10000 times of aluminum die casting, 5000 times of magnesium and zinc die casting, and 800 times of copper die casting, the mold cavity and die base should be tempered at 450-480 ℃, and the cavity should be polished and nitrided to eliminate the internal stress and slight cracks on the surface of the cavity. After that, the same maintenance should be carried out every 12000-15000 mould times. When the mould is used for 50000 times, it can be maintained every 25000 ~ 30000 mould times.

Therefore, the maintenance of injection mold is very important. The following editor will tell you the specific methods of mold maintenance:

1. First of all, the processing enterprise should provide a resume card for each pair of molds, recording and counting the use, care (lubrication, cleaning, rust prevention) and damage in detail, so as to find out which parts and components have been damaged, and the degree of wear, so as to provide information for finding and solving problems, as well as the molding process parameters and product materials of the mold, so as to shorten the trial run time of the mold Improve production efficiency. 2. The processing enterprise should test the performance of the injection molding machine and mold under normal operation, and measure the size of the final molded plastic parts. Through this information, the existing state of the mold can be determined, and the damage of the cavity, core, cooling system and parting surface can be found. According to the information provided by the plastic parts, the damage status of the mold and the maintenance measures can be judged. Dongguan Mechanical parts processing 3. To focus on tracking inspection of several important parts of the mold: the function of ejecting and guiding components is to ensure the opening and closing movement of the mold and the ejection of the plastic part. If any part of the mold is stuck due to damage, it will lead to production stop. Therefore, it is necessary to keep the lubrication of the mold ejector pin and guide pillar (the most suitable lubricant should be selected), and regularly check whether the ejector pin and guide pillar are in good condition Once deformation and surface damage are found, they should be replaced in time; after completing a production cycle, the working surface, moving and guiding parts of the mold should be coated with professional antirust oil, especially the protection of the elastic strength of the bearing parts of the mold with gear and rack and the spring mold, so as to ensure that they are always in the best working state; with the continuous production time, the cooling channel It is easy to deposit scale, rust, sludge and algae, which makes the cross-section of cooling channel smaller and the cooling channel narrow, which greatly reduces the heat exchange rate between the coolant and the mold and increases the production cost of the enterprise. Therefore, attention should be paid to the cleaning of the flow channel. For the hot runner mold, the maintenance of heating and control system is helpful to prevent the occurrence of production failure, so it is particularly important. Computer gong processing, Dongguan high speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC processing, therefore, after the end of each production cycle, ohmmeter should be used to measure the belt heater, rod heater, heating probe and thermocouple on the mold. If there is any damage, it should be replaced in time, and compared with the mold resume, and make records, so as to timely find out Problems, take countermeasures. 4. Pay attention to mold surface maintenance, it directly affects the surface quality of products, the focus is to prevent corrosion, therefore, it is particularly important to select a suitable, high-quality, professional anti rust oil. After the mold has completed the production task, different methods should be taken according to different injection molding to carefully remove the residual injection molding and other deposits in the mold with copper rod, copper wire and professional mold cleaning agent, and then air dry. It is forbidden to clean iron wire, steel bar and other hard objects to avoid scratching the surface. If there are rust spots caused by corrosive injection molding in CNC processing, grind and polish with a grinder, spray professional antirust oil, and then store the mold in a dry, cool and dust-free place.

Through the above four points to do a good job in the maintenance of the mold, can shorten the mold assembly, reduce production failure, make the production run smoothly, ensure product quality, reduce waste loss, and reduce the enterprise’s operating costs and fixed assets investment. At the beginning of the next production cycle, the enterprise can smoothly produce qualified products.

CNC machining process of precision parts

Machining process card: the process documents are required to be as detailed and complete as possible. In addition to the process catalog, there are also process cards for each process. Mechanical processing refers to the process of changing the overall dimension or performance of the workpiece through a kind of mechanical equipment. Dongguan mold processing has a variety of meanings: broadly speaking, it refers to the process of manufacturing products by mechanical means; in a narrow sense, it refers to the process of manufacturing parts with special machinery such as the lathe, milling machine, drilling machine, grinding machine, stamping machine, die-casting machine, etc.

There will be some errors in machining. Let’s talk about the original error related to the initial state of the process system itself

① Principle error is the error of machining method.

② Geometric error of process system

The relative position errors between workpiece and tool exist in static state, such as manufacturing error of tool and fixture, adjustment error and installation error;

The relative position error of workpiece and cutter exists in the motion state, such as the spindle rotation error of machine tool, the guide error of guide rail, the transmission error of transmission chain, etc.

(2) Original error related to cutting process

① The deformation caused by the force effect of the process system, such as the deformation caused by the stress deformation of the process system and the deformation caused by the generation and disappearance of the internal stress of the workpiece.

② Deformation caused by thermal effect of process system, such as the error caused by thermal deformation of machine tool, cutting tool and workpiece. In the machining process of Dongguan machine parts, when the position relationship between the tool and the workpiece processing surface is reasonable, the machining surface accuracy can meet the processing requirements, otherwise it can not meet the processing requirements. CNC machining accuracy analysis is to analyze and study various factors when the machining accuracy can not meet the requirements, that is, the possibility of various original errors, and take effective measures In order to improve the machining accuracy.

Characteristics of milling machine processing

It is characterized by:

1. The vertical milling head is equipped with tx400 heavy gantry milling head and double rectangular guide rail with strong rigidity;

2. The milling head is equipped with ball screw, pneumatic broach device and driven by servo motor;

3. The side milling head is equipped with V5 type gantry milling head, Dongguan high-speed computer gong processing is equipped with independent lubrication device, and the lifting is driven by ordinary reducer and frequency conversion speed regulation;

4. The three-axis CNC system with one key conversion from general milling to CNC milling can be programmed and operated manually by using the extended panel, which is highly realizable in the actual machining process;

5. The machine bed forward and backward, beam up and down, vertical milling head up and down are equipped with Taiwan ball screw, driven by servo motor;

6. Equipped with synchronous belt and synchronous wheel;

7. Hand held electronic hand wheel unit, convenient for three axis tool setting;

8. Dongguan machine parts processing unique beam lifting safety interlock device, CNC processing to ensure the repeated positioning accuracy of the machine tool;

9. The cycloid pump set is lubricated continuously with low failure rate.

Principle of CNC machining

According to the principle of “first rough then fine”, for parts with high precision requirements, the machining accuracy is gradually improved by the sequence from coarse to fine. Dongguan high-speed computer gong processing this point for poor rigidity parts, especially can not be ignored. In order to solve such problems, the characteristics of titanium alloy materials, machining characteristics, tool data selection, milling processing characteristics, coolant and other aspects are analyzed to improve the one-time acceptance rate of titanium alloy parts, so as to control the product quality of the parts. In order to better control the product quality, computer gongs processing, Dongguan computer gongs processing, high-speed computer gongs processing, mechanical parts processing, computer gongs processing must first control the cutting parameters of non-standard equipment parts processing, and grasp the processing characteristics of materials.

Mechanical processing technology is to change the shape, size, relative position and nature of the production object on the basis of the process. CNC processing makes it a finished product or semi-finished product. It is a detailed description of each process. For example, as mentioned above, rough machining may include blank manufacturing, grinding, etc., and finishing may be divided into turning, fitter, milling machine, etc., and each step is just like this There must be detailed data, such as how much roughness and tolerance should be achieved.

The classification of machining is as follows:

Design datum: the datum used to determine the position of other points, lines and planes on the part drawing, which is called design datum.

Process datum: the datum used in the process of machining and assembling parts, which is called process datum. According to different uses, the process datum of Dongguan mould can be divided into assembly datum, measuring datum and locating datum.

(1) Assembly datum: the datum used to determine the position of parts in parts or products during assembly, which is called assembly datum.

(2) Measurement datum: the datum used to check the size and position of machined surface, which is called measuring datum.

(3) Positioning datum: the datum used for workpiece positioning during machining, which is called positioning datum. For the surface (or line, point) as the positioning reference, only the rough surface can be selected in the first process, such as computer gong processing, Dongguan computer gong processing, high-speed computer gong processing, mechanical parts processing, computer gong processing. This positioning surface is called rough datum. In the future, the machined surface can be used as the positioning reference, and this positioning surface is called precision reference.

Fundamentals of CNC machining

The width of the worktable is less than 400mm for small and medium-sized CNC milling machines, which are suitable for the machining of small and medium-sized parts and the contour milling of complex surfaces. Large specifications such as the Dragon Gate milling machine, the worktable in 500-600mm above, used to solve the processing needs of large-scale complex parts.

Design datum: the datum used to determine the position of other points, lines and planes on the part drawing, which is called design datum.

Process datum: the datum used in the process of machining and assembling parts, which is called process datum. According to different uses, process datum can be divided into assembly datum, measuring datum and locating datum.

(1) Assembly datum: the datum used to determine the position of parts in parts or products during assembly, which is called assembly datum.

(2) Measurement datum: the datum used to check the size and position of machined surface, which is called measuring datum.

(3) Positioning datum: the datum used for workpiece positioning during machining, which is called positioning datum. Computer gong processing, Dongguan high speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC machining as the positioning reference surface (or line, point), in the first process, only the rough surface can be selected. This positioning surface is called the rough datum. In the following processes, the machined surface can be used as the positioning reference, and the positioning surface is called the precise reference.

In the process of turning a blank into a finished product, the total thickness of the metal layer cut off on a machining surface is called the total machining allowance of the surface. The thickness of the metal layer cut by each process is called the machining allowance between processes. For the rotating surface such as outer circle and hole, the machining allowance is considered from the diameter, so it is called symmetrical allowance (i.e. bilateral allowance), that is, the actual thickness of the metal layer cut off is half of the machining allowance on the diameter. The machining allowance of the plane is the unilateral allowance, which is equal to the actual thickness of the metal layer removed. The purpose of leaving machining allowance on the workpiece is to remove the machining errors and surface defects left by the previous process, such as the surface cold and hard layer, air hole and sand inclusion layer on the casting surface, oxide scale, decarburization layer and surface crack on the forging surface, internal stress layer and surface roughness after cutting. The precision and surface roughness of the workpiece are improved. The size of machining allowance has great influence on machining quality and production efficiency. If the machining allowance is too large, it not only increases the labor of machining, reduces the productivity, but also increases the consumption of materials, tools and power, and increases the processing cost. If the machining allowance is too small, it can not eliminate all kinds of defects and errors in the previous process, and can not compensate for the clamping error in this process, resulting in waste products. The selection principle is to make the allowance as small as possible on the premise of ensuring the quality. Generally speaking, the more finish machining, the smaller the process allowance.

Applicability:

In the process of turning a blank into a finished product, the total thickness of the metal layer cut off on a machining surface is called the total machining allowance of the surface. The thickness of the metal layer cut by each process is called the machining allowance between processes. For the rotating surface such as outer circle and hole, the machining allowance is considered from the diameter, so it is called symmetrical allowance (i.e. bilateral allowance), that is, the actual thickness of the metal layer cut off is half of the machining allowance on the diameter. The machining allowance of the plane is the unilateral allowance, which is equal to the actual thickness of the metal layer removed. The purpose of leaving machining allowance on the workpiece is to remove the machining errors and surface defects left by the previous process, such as the surface cold and hard layer, air hole and sand inclusion layer on the casting surface, oxide scale, decarburization layer and surface crack on the forging surface, internal stress layer and surface roughness after cutting. Computer gong processing, Dongguan high speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC processing, so as to improve the accuracy and surface roughness of the workpiece. The size of machining allowance has great influence on machining quality and production efficiency. If the machining allowance is too large, it not only increases the labor of machining, reduces the productivity, but also increases the consumption of materials, tools and power, and increases the processing cost. If the machining allowance is too small, it can not eliminate all kinds of defects and errors in the previous process, and can not compensate for the clamping error in this process, resulting in waste products. The selection principle is to make the allowance as small as possible on the premise of ensuring the quality. Generally speaking, the more finish machining, the smaller the process allowance. In order to formulate the machining process, it is necessary to determine the number of working procedures and the sequence of working procedures for the workpiece, and only list the name of the main process and its processing sequence, which is called the process route.

Detailed explanation of CNC machining process

The end mill of Dejiang steel is mostly used for machining boss and groove, and it is generally not used to process the blank surface because the hardening layer and sand inclusion on the surface of the blank will accelerate the tool wear.

When machining the surface of blank or rough machining hole, the end milling cutter or corn milling cutter inlaid with cemented carbide can be selected for strong cutting.

The end mill C is often used when machining the peripheral contour of a plane workpiece.

In order to improve the accuracy of the groove width and reduce the number of tool changes, the milling cutter with a diameter of 7 than the groove width can be used to mill the middle part of the groove first, and then use the tool radius compensation function to mill the two sides of the groove.

Ball end milling cutter, ring milling cutter, drum milling cutter, cone milling cutter and disc milling cutter are often used in machining solid curved surface or variable bevel profile.

When the machining allowance is small and the requirement of surface roughness is high, the face milling cutter with cubic boron nitride blade or ceramic insert blade can be selected for high-speed cutting.

According to the principle of NC machining, the overall consideration is made according to the requirements of workpiece processing drawings, and the format specified by CNC milling machine is used for editing. Computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing and CNC machining are input according to the action sequence. Thus, we can know the precise machining technology of CNC lathe while compiling the NC program It is also necessary.

1. Determine the process flow. The processing technology of CNC milling machine is very similar to that of ordinary machine tool. Through analyzing the workpiece, specify the processing route, select the processing procedure, select the machine tool, fixture and cutter. Determine the equipment baseline position and cutting amount. The difference is that CNC machine tools need to program the operation process.

2. Calculate the tool coordinate value. In order to facilitate the programming and calculation of tool path coordinates. The coordinates of the workpiece and the size and shape of the part must be calculated first, so as to determine the whole machining path of the tool.

3. Write processing program, for simple workpiece can be written manually, but for complex processing workpiece, automatic programming is needed.

4. There are many ways to input program into CNC system, such as computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC processing, which are mainly completed by the operation panel of the CNC control system, and the interface between the computer and the CNC system can be connected to input the program through the computer.

5. Comprehensive inspection of procedures. Through the function of graph magic shadow display or NC milling machine equipment running without load, the machine tool running track can be checked, whether the tool movement meets the requirements of capping, or the method of single step program execution can be used for cutting

CNC punch has a lot of people do not know

There are a lot of things we don’t know about CNC punch: (1) there is no training for CNC punch in Toronto, such as computer gong processing, Dongguan computer gong processing, Shenzhen computer gong processing, mechanical parts processing, Guangzhou computer gong processing. I have consulted four public colleges, Chinese training schools and some foreign training schools, none of them. Therefore, the competition is relatively peaceful; (2) the concept of punch is very dangerous, because in China, punches often have accidents such as washing off fingers, but that is a manual punch.

There is no infrared protection. The first time I saw the imported CNC punch press was in an exhibition in China. It showed that the machine was processing a panda pattern sample. In fact, the CNC punch is very safe. This kind of punch is completely different from the one you imagine in China. In terms of safety, the operator is far away from the machine, just press a start button, and even stop button is not necessary At the same time, when the machine is running, the operator is far away from the machine, and the machine stops when the operator is operating, that is, the mobile person stops, the human motivation stops, the computer gong processing, Dongguan computer gong processing, Shenzhen computer gong processing, mechanical parts processing, Guangzhou computer Gong processing, it is impossible to impulse the hand; all the machine actions are controlled by the program, once the machine runs abnormally, it will only stop and give a message Warning information, there will be no other accidents; (3) Punch is a two-dimensional planar motion, it is easy to get started. In fact, it is a faster way for new immigrants to get employment, especially for those who are not specialized in mechanical technology. There is no need for three-dimensional imagination ability. Of course, if you have learned CNC milling machine, it is very easy to turn to learn punching machine. In addition, you do not need to be able to program. You only need to know how to operate Just do it. Learn setup at most, and it’s not difficult.

(4) It’s a shortcut to get out of the situation of pure work. Why do you say this? You have to learn to program in order to work independently when you are learning milling machine. But punching machine is not the same. You can set up. Computer gong processing, Dongguan computer gong processing, Shenzhen computer gong processing, mechanical parts processing, Guangzhou computer gong processing, as a special post, has a special person in programming What you have to do is to process the parts in the program. Conversely, once you become a programmer, you don’t have to work in the workshop. You go to office and go to the technical department to program. It is no longer a labor. If you work hard, you can achieve this process in one year, because what you have to do is to learn the sheet metal design function of Pro Engineer Software Can you be a programmer of milling machine in the same time? Your milling machine programming level is the highest, and you have to work in the workshop. I am not slandering milling machine, but just shows that milling machine is more complex, punch is more suitable for new immigration.

(5) There are a wide range of employment. There must be CNC push press and CNC brake press machines in factories with turret punch machines. Quite a few companies will also have laser cutting system (CNC). Some companies have fully automatic punch machines such as Amada, all of which are CNC, Computer gong processing, Dongguan computer gong processing, Shenzhen computer gong processing, mechanical parts processing, Guangzhou computer gong processing, so there are many job opportunities

How to select materials for CNC machining

Of all the series, the 1000 series has the most aluminum content. The purity can reach 99.00%. Because it does not contain other technical elements, computer gong processing | Dongguan computer gong processing | Shenzhen computer gong processing | mechanical parts processing | Guangzhou computer gong processing | so the production process is relatively simple and the price is relatively cheap, which is the most commonly used series in conventional industries. At present, most of the 1050 and 1060 series are in circulation in the market. The minimum aluminum content of 1000 series aluminum plate is determined according to the last two Arabic numerals. For example, the last two Arabic numerals of 1050 series are 50. According to the international brand naming principle, the aluminum content must reach 99.5%, and the top is the qualified product. China’s aluminum alloy technical standard (GB / t3880-2006) also clearly stipulates that the aluminum content of 1050 is 99.5%. Similarly, the aluminum content of 1060 series aluminum plate must reach more than 99.6%.

2、 2000 series aluminum plate represents 2A16 (Ly16) 2A12 (LY12) 2A06 (LY6) 2000 series aluminum plate is characterized by high hardness, among which copper element content is the highest, about 3-5%. The 2000 series aluminum plate belongs to aviation aluminum material, which is not often used in conventional industry. At present, there are few manufacturers of 2000 series aluminum plate in China. The quality cannot be compared with that of foreign countries. At present, the imported aluminum plate is mainly provided by Korean and German manufacturers. With the development of China’s aerospace industry, the production technology of 2000 series aluminum plate will be further improved.

3、 3000 series aluminum plate represents 3003 3003 3A21. It can also be called antirust aluminum plate. The production process of 3000 series aluminum plate in China is excellent. The 3000 series aluminum plate is mainly composed of manganese. The content is between 1.0-1.5. It is a series with good antirust function. Conventional application in air conditioning, refrigerator, car bottom and other humid environment, the price is higher than 1000 series, is a more commonly used alloy series.

4、 The 4000 series aluminum plate represents 4a01. The 4000 series aluminum plate belongs to the series with high silicon content. Generally, the silicon content ranges from 4.5% to 6.0%. Computer gong processing | Dongguan computer gong processing | Shenzhen computer gong processing | mechanical parts processing | Guangzhou computer gong processing | belongs to building materials, mechanical parts, forging materials, welding materials; low melting point, good corrosion resistance. Product Description: it has the characteristics of heat resistance and wear resistance.

5、 The 5000 series represents the 5052.5005.5083.5a05 series. 5000 series aluminum plate belongs to the common alloy aluminum plate series, the main element is magnesium, the magnesium content is between 3-5%. It can also be called aluminum magnesium alloy. Its main characteristics are low density, high tensile strength and high elongation. In the same area, the weight of aluminum magnesium alloy is lower than other series. Therefore, it is often used in aviation, such as aircraft fuel tank. It is also widely used in conventional industry. The processing technology is continuous casting and rolling, belonging to the hot rolling aluminum plate series, so it can do oxidation deep processing. In China, 5000 series aluminum plate is one of the more mature aluminum plate series.

6、 The 6000 series represents 6061, which mainly contains magnesium and silicon. Therefore, it concentrates the advantages of 4000 series and 5000 series. 6061 is a cold-treated aluminum forging product, which is suitable for applications requiring high corrosion resistance and oxidation resistance. Good usability, excellent interface characteristics, easy coating and good processability. It can be used in low-pressure weapons and aircraft joints. 6061 general characteristics: excellent interface features, easy coating, high strength, good usability, strong corrosion resistance, computer gong processing in Dongguan, computer gong processing in Shenzhen, mechanical parts processing in Guangzhou. Typical uses of 6061 aluminum: aircraft parts, camera parts, couplers, ship accessories and hardware, electronic accessories and joints, decorative or various hardware, hinge head, magnetic head, brake piston, hydraulic piston, electrical accessories, valves and valve parts.

7、 7000 series represents 7075, mainly containing zinc. 7075 aluminum plate is stress relieved, and will not deform and warp after processing. All super large and super thick 7075 aluminum plates are detected by ultrasonic wave, which can ensure no sand hole and impurity. The high thermal conductivity of 7075 aluminum plate can shorten the forming time and improve the working efficiency.