The Advantages Of Swiss Machining

Today, I want to share with you the advantages of Swiss machining, mainly in the following points:

The lubrication system can ensure the lubrication of the transmission parts such as screw rods, line rails, bearings, etc., and enhance the life of the machine tool. The controller cooperates with the machine tool to achieve the basic functions of the machine tool. Chip tools are always machined in the spindle and workpiece clamping parts to ensure machining precision. Therefore, as long as it is a part that can be processed by Swiss Machine, its Swiss machining accuracy, machining speed, and cutting machine are difficult to compare.

Swiss Machine originated in Switzerland and Germany, and was used to process precision military equipment. Later, it was widely used in the precision manufacturing industry. It can complete complex machining such as turning, milling, drilling, boring, tapping, and engraving at one time. The machining efficiency and precision The degree is much higher than that of traditional CNC machine tools. Because of its sophisticated manufacturing, it reduces the floor space and reduces the production cost. It is the choice for mass production of precision parts. Its high-precision feed system ensures high rigidity, longevity and high stability of the machine tool. It contains a spindle oil cooling system and is equipped with a high-end motor. The cooling oil can cooperate with the spindle to form a complete oil cooling circuit. The whole machine tool can run lastingly and smoothly at room temperature, and it is easy to achieve a safe, efficient and quiet machine tool. The CNC Swiss Machine can be equipped with an automatic feeding device to realize the fully automatic production of a single machine tool, reduce labor costs, and reduce the rate of defective products. It is very suitable for mass production of precision shaft parts. Because the tool is arranged in two axes, the aluminum swiss machining cycle time is greatly reduced. Reduced idling time is achieved by shortening tool change times for gang and opposing tool rests.

Compared with conventional CNC machining processes,Swiss cnc turning has great advantages: it can shorten the product manufacturing process chain and improve production efficiency.

It can realize one-time card loading to complete the precision cnc turning process of the jade or most of the departments, thereby greatly shortening the product manufacturing process chain. The bigger difference between the Swiss Machine and the knife feeder is that the Swiss Machine is the material moving, and the knife moving machine is the knife moving. In this way, on the one hand, the auxiliary production time is reduced, and on the other hand, the manufacturing cycle and waiting time of the tooling and fixtures are shortened, which can significantly improve the production efficiency. CNC Swiss Machining reduces the number of clamping and improves machining accuracy. The side milling mechanism can maximize the use of machine space. At the same time, most CNC Swiss Machines have the function of online inspection, which can realize in-situ inspection and precision control of key data in the manufacturing process.

Pintejin has high-precision and high-intelligence core technology, adopts high-precision and high-rigidity built-in electric spindle, high-precision bearings, and cooperates with stator and rotor, the spindle accuracy is not disordered under high-speed rotation, and the error is small.

Micro-cutting and tool selection in turning and milling

Over time, the time it takes to replace the blade becomes a significant factor in productivity. Face milling should be preferred, because it is cnc machining high-strength materials, and the cnc milling inserts have to withstand a lot of impact, so it is necessary to choose a high-hardness fine-grained insert base and apply a wear-resistant coating to prolong tool life and improve surface finish. . In the machining process of the spindle and the workpiece clamping part, the chip tool has always played a very important role, which provides a strong guarantee for constant machining accuracy. Because micromachining faces various challenges (such as tight dimensional tolerances, stringent quality requirements, difficult-to-machine materials, etc.), the selection of an accurate machining method is critical.

Micromachining presents a unique set of challenges—not only because of the very small size of the workpieces, but also in industries that require these tiny parts, which are mostly made of difficult-to-machine materials and have complex geometries.

Milling should be done. Turn-milling composite machining can realize the completion of the jade or most of the precision machining procedures at one time, thereby greatly shortening the product manufacturing process chain. With the continuous improvement of technology, in order to help improve the production efficiency of small parts, it is very important to have a reliable tool partner who can provide user support and technical advice. And choosing the right tool partner can also guarantee the success of the machining.

To reduce machining chatter (a bigger problem that can arise with thread whirling) and increase tool life, manufacturers should choose thread whirling rings with unequally spaced inserts.

Thread whirling (a aluminum milling process in which the cutting edge is located on the inner ring of the cutter instead of the outer circumference) is a more productive machining method. Precision nozzles provide maximum coolant flow for improved part quality and chip breaking.

Reduce floor space and reduce production costs. Due to the increasingly fierce competition, the success or failure of a company’s manufacturing business may be determined by the use of advanced cutting tools and processes to improve productivity and maintain a leading position in technology. This series of machine tools can also be equipped with an automatic feeding device to realize fully automatic production of a single machine tool, reducing labor costs and defective products in the production process, and can be used to produce large quantities of precision shaft parts. This process is very suitable for CNC lathes, as the distance between the tool and the guide bush is short, which is beneficial to enhance the support and reduce the vibration.

Many auto parts are made of sheet metal to form body parts (such as doors, hoods, fenders, etc.) by die machining.

In the machining of the turning-milling compound centering machine, drilling and internal turning should be carried out on the positive spindle length first, because the guide bush can support the bar material, so the processing stability can be improved. Its wedge-shaped design allows the operator to change blades in seconds.

Key factors for seamless production include process safety, cycle times and product quality. After finishing, complete finishing on the sub-spindle. This technology uses milling cutters (rather than drills) to more efficiently machine a variety of hole and pocket features on curved and sloping surfaces common in many aerospace components. In addition, the high-performance, long-chipping materials commonly used in the machining of tiny parts in aerospace manufacturing can cause chip breaking frustrations.

Reduce the number of clamping and improve the machining accuracy. The length of this screw is far greater than its diameter, making it more difficult to machine, as the screw can easily bend during processing. As far as the centering machine market is concerned, 42mm is its larger processing diameter, which makes the centering machine have a great advantage in the precision shaft processing market.

Blocking is the last process completed on the positive spindle. But there are also lots of small auto parts (such as driveshafts and gears) that are machined in high volume. Although the single price of Micro-cutting and tool selection in turning and milling equipment is relatively high, due to the shortening of the manufacturing process chain and the reduction of equipment required for the product, as well as the reduction of the number of fixtures, workshop floor space and equipment maintenance costs, the overall fixation can be effectively reduced. The cost of investment casting, production and management of assets. The closer the two spindles are to each other, the smaller the part overhang and the better the surface finish. The machine adopts two-axis arrangemasent of tools. This design greatly saves the processing cycle time. By shortening the tool exchange time between the arrangement of tools and the opposite tool table, the overlapping functions of multiple tool tables and effective axis movement of thread chips are realized. , The direct spindle indexing function during the secondary processing shortens the actual and empty travel time.

Introduction to some aspects of stamping defects

1. Cracking

Inspection method: visual evaluation criteria:

• Type A defects: cracks that can be noticed by users without training. Stamping parts with such defects are unacceptable to users, and stamping parts must be frozen immediately after discovery.
• Type B defects: Visible and determinable micro cracks. Stamping parts with such defects are not acceptable in Zones I and II. Repair welding and repairing in other areas is allowed, but the repaired parts are not easy to detect by customers and must meet the stamping requirements. Repair standards for parts.
• Type C defects: The defects are ambiguous and determined after careful inspection. The stamping parts of this type of defect will be repaired in Zone II, Zone III and IV, but the repaired parts are not easy to be found by customers and must meet the requirements of stamping parts. Rework standard.

2. Strains, coarse grains, and dark injuries

Inspection method: visual evaluation criteria:

Type A defects: untrained users can also notice strains, coarse grains, and concealed injuries. Stamping parts with such defects are not acceptable to users, and stamping parts must be frozen immediately after discovery.

Type B defects: visible and determinable minor strains, coarse grains, and dark scratches.Stamped aluminum parts with such defects are acceptable in zone IV.

Type C defects: slight strain, coarse grains, and dark damage. Stamping parts with such defects are acceptable in zone III and IV.

3. Flat pond

Inspection method: visual inspection, whetstone polishing, touch, oiling Evaluation criteria:

• Type A defects: It is a defect that users cannot accept, and users who have not been trained can also notice that stamping parts must be frozen immediately after such collapsed ponds are discovered. Type A collapsed pond stampings are not allowed to exist in any area.
• Type B defect: It is an unpleasant defect. It is a tangible and definite pit that can be felt and visible on the outer surface of the stamping part. Such defects are not allowed on the outer surface of the stamping parts I and II. Slumped pond.
• Type C defects: defects that need to be corrected. Most of these collapsed ponds are in an ambiguous situation and can only be seen after the oilstone is polished. Stamping parts of this kind of slumping pond are acceptable.

Discussion on Methods of Improving the Service Life of Stamping Die

Stamping die is currently a widely used manufacturing method in the manufacturing industry, but the current level of stamping die production in my country is not ideal, and there is still a gap between it and western developed countries, especially in the relatively short service life of stamping die , The short service life will directly affect the use of products, and at the same time, it will directly affect the development of my country’s manufacturing industry. Therefore, how to effectively improve the service life of stamping dies is very important. It can play a certain role in the development of stamping dies. Keywords: stamping die life method measures, stamping dies are used very frequently in my country’s manufacturing industry, especially in the automobile manufacturing industry, stamping dies are the key to automobile manufacturing.

The improvement of the service life of stamping dies is a very comprehensive problem. It is necessary to analyze the factors affecting the service life of stamping dies from many aspects, and take targeted measures to continuously improve the service life of the dies.

Wear of stamping dies Wear failure is a relatively common form of stamping die failure at present. The failure caused by the wear of the die during the metal stamping process. Generally speaking, the possible wear during the stamping process includes blade passivation and groove marks on the surface. , Edges and corners are rounded, etc., and the reasons for wear failure can be mainly analyzed from the following points:

• One is that due to insufficient hardness, the mold comes into contact with the material during the stamping process, and friction between them is caused by the punching force, which causes the stamping die to strain and fail;
• Second, when the mold presses the material, some debris of the material will fall down due to the pressure, and the debris will generate friction between the material and the mold, which intensifies the wear of the mold and leads to the problem of mold failure;
• The third is that due to insufficient finish, the surface of the mold is stained with blank metal during the stamping process. These metal dusts have a certain effect on the material, resulting in changes in the size of the material, which leads to the appearance of product strain failure.

Influencing factors of the service life of stamping dies At the current stage, in order to solve the service life of stamping dies, the heat treatment process, material selection and structural design problems should be solved first, so that it is possible to continuously improve the service life of stamping dies. The factors contributing to the service life of stamping dies include the following:

2.1 Material selection of stamping die

The material selection of the mold itself has a very obvious impact on the life of the mold. The metal properties of the material itself will directly affect the strength requirements of the mold and have a certain impact on the mold material. The mold will be impacted and vibrated during the stamping process. And the influence of high-strength pressure makes the mold prone to corresponding hidden dangers and shortens the service life.

2.2 The influence of the structure of the stamping die

• First, whether the mold structure design is reasonable or not will directly affect the service life of the mold. If its structure design is unreasonable, it will directly cause the direction of force to be not concentrated, which will cause the mold to deform during the stamping process;
• Second, the structural design of the stamping die should not be too complicated. If it is too complicated, the possibility of wear and deformation of the die will increase, thereby reducing the service life of the die;
• Third, the setting of stamping parameters will have a greater impact on the service life of the mold itself.

2.3 Influence of mold heat treatment

The stamping die must be subjected to heat treatment when stamping, and the method of heat treatment will directly affect the service life of the stamping die. First of all, in the quenching stage, due to the relatively high heating temperature, the mold is overheated and burned, which weakens the toughness of the mold itself. In this way, the mold will crack due to insufficient toughness during long-term use. At the same time, if the quenching temperature is too low, the wear resistance of the mold itself will decrease, and then the mold will wear and fail. Therefore, the mold needs to be protected to a certain extent during the heat treatment. If the protection is not in place, the surface will be caused. A certain oxide layer is formed, resulting in a decrease in the wear resistance of the mold.

Design of Blanking Die for Gasket

Gaskets are important parts required for industrial manufacturing. The design of economical and feasible gasket punching dies can provide references for related companies, thereby shortening the mold design cycle, reducing costs and achieving benefits. The material of the existing gasket work piece is Q235 steel, the thickness is 1mm, the work piece can be ordinary punched, and the production batch is large batch. Analysis and determination of its size and size process plan

Process analysis of stamping parts

The manufacturability of blanking parts refers to the suitability of the workpiece to the copper stamping process, and it is the process requirement for the product from the perspective of stamping process. Good manufacturability is reflected in the low material consumption, small number of procedures, simple mold structure and long life, stable product quality, and simple operation. The surface roughness of the part is 6. The accuracy of 3 m parts is ITI2, and the tolerance of the distance between the centers of the two holes is ±0.1mm.

Determine the process plan

The production of the workpiece requires two basic processes: punching and blanking. Option 1: Single process mode. The design is simple, but the production efficiency is low. The blanking is divided into two processes and two sets of different blanking equipment are required. Option 2: Compound mold. The use of composite molds can simplify the punching process, and the production efficiency is higher. However, the circular ring belt of the workpiece is narrow, and the minimum wall thickness of the convex and concave molds cannot be satisfied. Option three: continuous mode. The production efficiency is high, and it is easy to realize the possibility of operation mechanization and automation. In summary, option three is selected. If the material is blanked and then punched, the efficiency is too low. And the quality is not easy to guarantee, so a continuous die is used that first punches L and then blanks. 3 Blanking process and design calculation

Layout

Layout refers to the layout method of blanking parts, strips or sheets. Reasonable layout and selection of appropriate margin values ​​are effective measures to reduce costs, ensure the quality of the workpiece and extend the life of the mold.

• (1) The layout method is because the continuous blanking method of double punches is adopted. For example, the blanks are laid out according to normal conditions. The distance between the punch L punch and the blanking punch is relatively close, and the installation part of the punch overlaps. The punch must also be processed, taking into account that it may affect the strength of the punch. In order to avoid the above situation, and from the point of view of material utilization, the interval layout method is adopted, that is, the blank is blanked twice. Although this kind of nesting method can greatly improve the utilization rate of materials, in the process of secondary blanking, because the stopper pin may be blocked in the hole of the sheet after the primary blanking, it may be a problem for workers. The operation brings certain difficulties, which must require the operator to accurately control the feeding distance during manual feeding.
• (2) Overlap The remaining material left between the workpieces and between the workpiece and the side of the strip during layout is called overlap. The function of the lap is to compensate the positioning error of the strips, to ensure that qualified workpieces are punched out, to ensure that the strips have a certain rigidity, and to facilitate feeding.

Factors affecting the price of beryllium copper

International economic situation. The correlation between the commodity market and the economic situation is obvious, especially as the world economy is becoming increasingly globalized, and the commodity market and the economy are more related. Therefore, the price of beryllium copper is closely related to the economic situation.

The consumption of beryllium copper is mainly concentrated in developed industrial countries. The economic conditions of these countries such as the United States, Japan, Western Europe and other countries have a greater impact on the price of beryllium copper. Generally speaking, the economic situation is good, the demand for beryllium copper increases, and the price rises, and vice versa decline.

The production status of the producing country. Chile is rich in beryllium copper resources and the world’s beryllium copper exporter. Zambia and Zaire in central Africa are also important beryllium copper producing countries. Almost all of the beryllium copper produced by them is used for export. Their production status is important to the international beryllium copper market. great influence. The governance situation in these three countries has always been unstable, and labor disputes have often occurred, which also has a direct impact on the price of beryllium copper.

Seasonal influence. The seasonal fluctuations in the price of beryllium copper are more obvious, with a trough in January and a high price in August. The influence of industry policy.

Since copper beryllium is mainly used in electrical, electronic, construction, machinery and transportation industries, the country’s industrial policies for these industries have a more important impact on the price of beryllium copper.

The price of the substitute. In the telecommunications industry, beryllium copper has always been an important raw material. However, due to the promotion and application of optical fiber technology, the position of beryllium copper has been challenged. At the same time, aluminum and other metal materials have the same properties as beryllium copper and are also used in most areas of use. Instead of beryllium copper.

The impact of inventory. Inventory is one of the important factors affecting the price of beryllium copper. Under different market conditions, companies will take different measures to increase or decrease inventory. In order to ensure the production of raw materials or speed up the flow of funds, throughput reserves will also be used at different periods to stabilize the beryllium copper market.

The influence of other policies and regulations. Since the beryllium copper machining market is an international market with a large volume of international trade, it is necessary to increase the import and export policies,

Changes in factors such as the exchange rate system and the intensity of combating smuggling will also have an impact on the price of beryllium copper.