January 14, 2020 by xinghui
The importance of Automobile Press Parts:
If it does not achieve accuracy, one is that automotive stamping parts cannot be used. Even if it can be used, it cannot reach its own performance, and there is still a great danger. Next, this stamping part must achieve a good Hardness, of course, is mostly related to its production materials.
The automobile is a heavy industry, so its requirements on hardness must be met, otherwise, the entire automobile cannot meet its quality requirements. The automotive stamping parts remind that there is one last point, that the stamping parts have to meet its wear resistance. Sexual requirements, and this often has a lot to do with its service life, so this is also a very important requirement.
nbstarlite is a professional China Mechanical Parts design and manufacturer. We can provide you with professional services and perfect products, so if you have any needs in this area, please hurry up and leave a message.
January 7, 2020 by xinghui
Introduction of China Mechanical Parts and automotive stamping parts
Auto parts, in general, can be divided into these major categories:
Oil seal: Includes valve oil seal and large oil seal.
Belts: including air conditioning belts, timing belts and generator belts.
Interior parts: Mainly refers to all large parts in the car, such as seat and pad.
Exterior parts: wipers, lights, glass, doors, covers, front and rear bumpers and tires.
Large parts: Some parts that can play a certain role, such as brake pads, engines, shock absorbers, air conditioners, etc.
For automotive stamping parts, we also have to learn, understand and master some of the related problems. Otherwise, we cannot learn well about this product, so as to gain a comprehensive understanding and understanding.
1. What are the available materials for some small stampings on cars?
Some small stamped parts on cars can be made of DC01, ST12, SPHE, SPHC and other materials, among which DC01 and ST12 are the two most used.
2. What are the precision stamping parts for automobiles?
Precision stamping parts on automobiles mainly include various stamped terminals, springs and leaf springs.
3. What is the production process of automotive stamping parts?
Automobile Press Parts, the production process is: drawing-making stamping mold-template preparation-heat treatment-grinding-assembly and test mold-sample delivery
December 31, 2019 by xinghui
Automobile Press Parts need to be sprayed with a primer before electroplating, so the electroplating will work well and the corrosion time will be longer. For example: Gold plating: Improve conductive touch resistance and signal transmission. (Gold is stable and expensive.) Silver plating: Improves conductive touch resistance and signal transmission. (Silver function is good, it is easy to oxidize, and it is conductive after oxidation) Copper plating: used as a primer to improve the adhesion of electroplating layer and the ability to resist. (Copper is simply oxidized. After oxidation, patina is no longer conductive, so copper-plated products must be protected by copper.) Nickel plating: used as a primer or appearance to improve corrosion resistance and wear resistance. (In the meantime, chemical nickel is used in modern technology. Wear resistance can exceed chrome). (Note that many electronic products, such as DIN heads and N heads, no longer use nickel as the base. The main reason is that nickel is magnetic and will affect the passive intermodulation in electrical functions.) Palladium nickel: Improve the conductive touch resistance , Improve signal transmission, wear resistance is higher than gold. Tin-Lead Plating: Improve soldering ability and be quickly replaced by other substitutes (because most of the lead content is now changed to bright tin and matte tin)
Because the spring-loaded discharge mold is more convenient to operate than the fixed discharge mold, the operator can see the feeding action of the strip in the mold, and the flexible force is applied to the strip when the spring-loaded discharge plate is discharged, which will not damage the workpiece surface. Therefore, in actual planning, as far as possible, the use of a spring-loaded discharge plate is adopted, and only when the discharge force of the spring-loaded discharge plate is insufficient, a fixed discharge plate is used instead. Whether the mold used by the Chinese machinery parts manufacturer chooses a spring-loaded discharge plate or a fixed discharge plate depends on the size of the discharge force, and the thickness of the material is the first consideration. Rockwell hardness tester is used for the hardness testing of hardware Chinese mechanical parts. Small, messy China Mechanical Parts can be used to test very small planes and cannot be tested on ordinary desktop Rockwell hardness testers. Alloy Chinese mechanical parts are commonly used in metal processing and machinery manufacturing. China's mechanical parts processing is a processing method that uses a mold to separate or form metal plates. Its scale of use is very wide.
December 24, 2019 by xinghui
With the continuous improvement of science and technology and people's living standards, people also demand higher and higher precision of products. In the stamping industry, the demand for Chinese mechanical parts is also expanding. China Mechanical Parts not only have high precision, but also have advantages over ordinary stamping products in terms of appearance and durability. The production process of Chinese mechanical parts is more complicated than ordinary stamping parts. Not only the shape and size of the product must be considered, but also stamping dies, punches, etc. must be considered during production. In order to ensure the production of qualified Chinese mechanical parts, the following points need to be paid attention to in production:
First, it is necessary to periodically check the performance of the punch and the parallelism and perpendicularity of the slider and the table.
Second, strict installation requires the production of precision stamping dies. If the stamping plant does not have the ability to develop molds, we must find a more regular and capable mold factory. The quality of precision stamping dies determines the quality of Chinese mechanical parts. In terms of molds, we must not find irregular and weak mold factories in order to save money.
Third, before installing the mold, be sure to strictly check whether the mold and the press table are clean, and check the lubrication of the mold guide post.
Fourth, during the production process, it is necessary to regularly check and replace the spring to prevent problems with the spring from affecting the quality of Chinese mechanical parts.
Fifth, when stamping workers install stamping dies, they must strictly install the established rules and regulations to operate.
6. In the actual production process, if the blade of the mold is worn, it must be repaired or replaced in time, otherwise the damage to the mold will increase continuously.
To ensure the product quality of Automobile Press Parts, in addition to the same precautions as conventional stamping parts, the main thing is to pay attention to the precision maintenance and maintenance of punches and stamping dies. As long as the nodulizing agent guarantees the precision of the punch and the accuracy of the die plus regular operations, it can produce qualified automotive stamping parts.
December 17, 2019 by xinghui
Design principles for sheet metal processing
Firstly, the design of Sheet Metal Parts must meet the use and technical performance of the product, and it must be easy to assemble and repair;
Then it must be conducive to improving the utilization rate of metal materials, reducing the variety and specifications of materials, reducing the consumption of materials as much as possible, using inexpensive materials if possible, and making parts as waste-free and waste-free as possible;
Then, the shape must be simple and the structure must be reasonable when designing. This is helpful to simplify the structure of the mold and the number of processes, that is, to complete the processing of the entire part with the least and simplest stamping process, and it is beneficial to the stamping operation To facilitate the organization to realize mechanization and automated production to improve labor productivity.
The stamped Bakelite Parts are designed to ensure that the dimensional accuracy level and surface roughness level are as low as possible under the conditions of normal use, which is conducive to the interchange of products, reduces waste products, and ensures stable product quality. The design of stamping parts should facilitate the use of existing equipment, process equipment and processes as much as possible, and extend the service life of the die.
December 10, 2019 by xinghui
No matter what technology is used, the product will be destroyed by negligence. Even the size of Chinese machinery parts produced may be different from the actual size. Of course, the smaller the gap, the better. So what is the reason that affects the accuracy of China Mechanical Parts! The factors affecting the precision of precision metal stamping parts are analyzed.
The dimensional accuracy of precision automotive Automobile Press Parts refers to the difference between the actual dimensions and the basic dimensions of the stamping parts. The smaller the difference, the higher the dimensional accuracy of the hardware stampings. The dimensional accuracy of precision metal stamping parts can be divided into two categories: accuracy grade and ordinary grade. Precision grade is the precision that can be achieved in the stamping process, while ordinary grade is the precision that can be achieved by more economical means.
November 26, 2019 by xinghui
China Mechanical Parts processing is also a relatively good product. We have specially treated this kind of Chinese mechanical parts, and the corrosion resistance of the treated products has become very good, and it is very good in the whole process. Convenience, and our corrosion resistance function, the acid pickling and decontamination of its products, which also makes the surface of Chinese mechanical parts very clean, and the product after pickling and decontamination treatment is not only corrosion resistant The function has been strengthened and the service life of the product has been extended. Therefore, it has also been loved by more customers. The time-division machinery and equipment of China's mechanical parts processing have certain safety doubts in the process of work. We can focus on practical safety questions and have a certain understanding of all the questions. This is to do well. The most basic condition of this work. As a Chinese mechanical parts processing factory, we really want to ensure our own safety, and we need to make progress in all aspects.
In addition to safety, it is very important to know that Chinese mechanical parts manufacturers must advance the standard of operation of employees. The occurrence of safety hazards is only present when we operate improperly. Only when you truly guarantee that the operation itself is very standard, many dangerous questions do not exist.
Automobile Press Parts are rich in variety and shape, and some bad phenomena often occur during stamping production. How to avoid problems? The intermediate retaining bracket is an important load-bearing connecting piece for the integral outer dial assembly of the car cab, and is an important part for ensuring the stable and reliable use of various appearances of the car. In addition, if the part exceeds the allowable stress during forming, perhaps the microcracks expand to a certain extent, thereby forming a tear or tilt, which not only spoils the data, but also causes the mold to be in an eccentric load.
November 19, 2019 by xinghui
1, see if the specification model is suitable
When purchasing Sheet Metal Parts, first find out what type of machine parts are, and then ask if they are the specifications you need. For example, when purchasing electrical parts, check whether the voltage and power of the replaced parts are consistent. When purchasing the transmission belt, pay attention to whether the model and circumference are consistent. When purchasing the fuel injection head, pay attention to the diameter of the nozzle and the angle of the atomizing cone. Whether it is accurate; when purchasing pistons and piston rings, it should be distinguished whether it is standard or enlarged.
2, see if the trademark logo is complete
The package name and box should be marked with the product name, specification, model, quantity, registered trademark, factory name and telephone number. Some large or important parts are also equipped with instructions for use, certificate of conformity and seal of inspector when they are shipped. They should be recognized when purchasing, so as to avoid the purchase of counterfeit and shoddy products.
3. See if the joint is flat. For joints, especially those with sudden changes in diameter or welds with welds, see if there are burrs, defects or cracks in the joint.
4, see if the surface of the part is rusted
Whether the metal parts have rust spots on the surface, whether the rubber and plastic parts have obvious aging, cracking, loss of elasticity, and whether the shaft parts have obvious turning lines on the surface of the journal, if any, should be exchanged.
5, see if the protective surface is intact
The piston pin and the bearing bush should be protected by paraffin. The piston ring and the surface of the cylinder liner are coated with anti-rust oil and wrapped with wrapping paper. The plunger pair, the outlet valve pair, the needle valve pair, the valve, the piston, etc. are immersed in anti-rust oil and pressed with plastic sleeve. Sealed.
Nbstarlite is a professional parts supplier, can provide you with a variety of professional Bakelite Parts and other parts series, no matter what kind of products you need, we will do our best to meet you, so come and contact us.
November 12, 2019 by xinghui
Automobile Press Parts are the production technology of product parts with certain shape, size and performance by means of the power of conventional or special stamping equipment, which directly deforms and deforms the sheet in the mold. Sheets, molds and equipment are the three elements of stamping. Stamping is a method of cold deformation of metal. Therefore, it is called cold stamping or sheet stamping, referred to as stamping. It is one of the main methods of metal plastic processing (or pressure processing) and is also part of material forming engineering technology.
Among the steels in the world, 50~60% are made of sheet metal, most of which are finished China Mechanical Parts. The body of the car, the radiator piece, the steam drum of the steam boiler, the casing of the container, the iron core silicon steel of the electric motor and the electric appliance, etc. are all stamped and processed. There are also a large number of products such as instrumentation, household appliances, offices, and storage utensils.
November 6, 2019 by xinghui
Why do Automobile Press Parts cause tearing? The quality of finished stamping products will lay a solid foundation for the appearance and performance of the vehicle. Therefore, the quality assurance of stamped parts has always been a problem that automotive manufacturers pay great attention to.
Common tearing and skewing forms The stamping process of the intermediate facing bracket is: blanking punching--punching cutting--flanging forming--cutting--flanging. There are various forms of tearing and skewing during the forming process of the intermediate retaining bracket. The tearing part is mainly distributed in the hole shape of the workpiece, and the intersection of the R arc and the wall neck at the corner of the side wall is formed by stamping and production. The difference in process conditions is different in the proportion of each fracture site. The tear may be a one-time formed tear, or it may be a tear due to fatigue cracks, i.e., development of a stealth crack.
Analysis of the cause, according to the actual situation of the site, by examining the tearing part of the part, the shape of the fracture and the degree of crushing, it is considered that the tearing and skewing behavior of the part is mainly reflected in the forming process of the flanging, and the causes of this process are as follows:
The forming process parameters are not in place. During the forming process of the part, the process requires that the die, the pressing core and the two parts must be closely attached together, and the sheet material is plastically deformed to form the machine when the machine slide slides down. However, due to the shortcomings such as unstable quality of the pressed parts, it indicates that the machine tool pressure is in an unbalanced state of pressure jump during the production process. The reason is mainly that the processing technicians did not adjust the machine tool pressure at this stage in time according to the process specification requirements, or did not communicate with each other when the shift of each shift was performed, and the quality of the workpiece was not stable.
The design of the flanging forming die is common to the double-cavity left/right part of the mold. Since the content of the process is not only flanging, but also the shape forming content, the special part is complicated, the curved surface is narrow, and the forming requires the die pressing material. The core conforms to the forming surface, etc., resulting in a large forming stroke of the mold structural condition and a small pressing area. In the initial mold design, the designer only considered the feature of the small pressing surface, but ignored the forming stroke of the pressing core.
If you want to buy high-quality and reliable China Mechanical Parts, then nbstarlite is your good choice, we are experts in this area, can provide you with all-round support and help, so if you have any need, please leave us a message. Let's go.