What are the requirements and conditions for qualified metal stamping parts?

1. What are the requirements for qualified metal stamping parts?

1. The basic performance of metal stamping parts processing products must be met. The assembly and maintenance of products need to be fast, convenient and trouble-free.

2. The products processed by metal stamping parts are simple in shape and reasonable in structure, which is conducive to the processing of molds, that is, the processing of the entire part is completed within the entire part time, and the mechanization and automation of production can be quickly realized to improve production efficiency.

3. The existing material equipment, process equipment and process flow should be processed with metal stamping parts as much as possible, and the service life of the stamping die can be guaranteed.

4. Under the condition of ensuring the normal use of metal stamping parts, the use size can be calculated reasonably, the dimensional accuracy level and surface roughness can be reduced, and the same size can be stamped together to reduce scrap and loss.

The above is the relevant content of “what requirements and conditions should qualified metal stamping parts have?” introduced by the editor of Zhejiang Baifudu Electromechanical. I hope that after reading the above content, it can be helpful to you.

What are the methods to prevent damage to metal stamping parts?

1. How to prevent the damage of metal stamping parts?

1. The type, specification and function of the selected hardware accessories should conform to the current specifications and relevant regulations, and high-quality plastic steel doors and windows should be selected to match.

2. For sliding windows with a width of more than 1 meter, or doors and windows with double-glazed equipment, it is easy to set up double pulleys, or choose to use rolling pulleys.

3. The sliding brace hinge cannot use aluminum alloy material, but stainless steel material should be used.

4. When using fastened screws to equip hardware, it is necessary to have a metal lining inside. The thickness of the lining should be at least twice the pitch of the fasteners, and must not be fastened to plastic profiles or non-metal linings.

5. After all, hardware accessories gold should be equipment, door and window locks, handles, etc. It should be assembled after the sash is framed to ensure proper orientation and movement of the switch.

6. The metal stamping equipment needs maintenance in the later stage to prevent rust and corrosion. In daily use, it should be lightly closed and lightly opened to prevent hard closing and hard opening, which will cause damage and no noise. With the current nylon wheel, it is not only noiseless, but also smoother and lighter, and its service life is not shorter than the above pulley, so that the (door) window can run normally and smoothly, choose high-quality pulley for (door) window, and inferior pulley from On the surface, the workmanship is rough, not smooth, the sliding is not active, and it is small and light.

What should be paid attention to in the processing of stamping parts?

In the whole process of stamping parts processing, we still need to pay attention to all aspects, so as to better understand the overall situation, which will be of great benefit to the future development of the entire manufacturer. What should be paid attention to in the whole process of metal stamping parts? The following Zhejiang Baifudu Electromechanical editor will take you to understand.

On the one hand, when precision stamping parts manufacturers are producing, they must also conduct corresponding inspections on their own products, so as to truly ensure that there is no problem in quality. Only if the stainless steel stamping parts processing plant does the relevant work, the entire production can be guaranteed, and many things will become easier in the future, and the entire production will become easier.
On the other hand, pay attention to the arrangement and management of stamping parts processing. The management and arrangement of the entire production and processing is still very important. If all aspects are really done well and continue to do related things, the situation of the entire manufacturer will continue to improve and improve.

Presumably many people do not know what materials are used to process metal stamping parts, because this kind of stamping parts can only be used in the hardware production industry. As long as you have a certain understanding of the hardware manufacturing industry, you should know that in the hardware processing industry, There are many metal stamping parts that must be used, so there are many stamping parts processing plants, of course, including the existence of stainless steel stamping parts processing plants.

In the current hardware manufacturing industry in my country, there are also some precision stamping parts manufacturers that produce metal stamping parts that meet the needs of hardware production and manufacturing, and these manufacturers are mainly based on some precision stamping parts. These precision stamping parts can greatly improve the product quality and production efficiency of the hardware manufacturing industry during production. Therefore, it also has a great demand in the market. Perhaps, his time and price are the same. There is also a world of difference.

What are the basic operation methods of stamping parts processing?

First, the basic operation of stamping parts processing

The transformation of the metal stamping parts processing equipment has effectively improved the production safety and reliability of the factory. At present, the operating systems of many old hardware stamping equipment in China are not very skilled, and there are many unsafe factors in electrical control systems and equipment. If we continue to use them continuously, we will continue to carry out corresponding technical transformations. Stamping equipment manufacturers must improve product design in order to ensure the safety and reliability of stamping equipment.

Professional metal stamping parts processing technology, molds and operation methods better realize the factory’s manual work outside the mold. For large-scale production operations, efforts can be made to reform the process and improve the mold to better realize mechanization and automation.

Install guards as much as possible. Due to the small production batch of products, safety protection devices can be installed to prevent injury accidents caused by operational errors in stamping operations that cannot be automated and cannot use safety stamping tools. All kinds of protective devices have their own different scopes and characteristics. Improper use will still cause injury accidents.

Metal stamping parts are more and more widely used, and the processing of metal stamping parts is mainly formed by processing metal sheets and forming stamping process molds. The stamping parts produced by metal stamping parts manufacturers can better have uniform, light and thin. , strong and other excellent characteristics, and its very high precision, the same specifications and so on.

Do you know what are the common mold processing methods?

1. Can use CAD mold processing method

When processing molds, a common method is the mold CAD method. When processing molds, this method generally adopts some ready-made mold standards to directly process molds. Because there are many products in design, the appearance is very similar, so in processing When making molds, for these products with small differences in appearance, some existing mold standards can be directly selected for processing and manufacturing, so that the molds can be manufactured faster. This manufacturing method is suitable for many mold processing and manufacturing, and some integrated technologies can be used when manufacturing molds.

Second, you can choose the die CAD mold processing method

When manufacturing molds by this method, it is somewhat similar to the first method, but it is improved on the basis of the previous method. When using this method to process and manufacture molds, some blanks are used, and the blanks are further optimized, so that the utilization rate of the manufactured molds is higher. When using this method to manufacture molds, due to the different requirements of each part, the methods used are also different in the stamping process. Using this method can greatly improve the utilization rate of blank materials.

3. You can choose the mold processing method of computer layout

With the continuous development of science and technology, computers play an increasingly important role in people’s lives. When people process and make molds, they can use the computer to lay out the layout and lay out several different styles through the computer. When using a computer for nesting, people can use two different nesting methods: semi-automatic and fully automatic. These two different nesting methods use different algorithms and characteristics. The entire production process can be completed more efficiently during processing.

Fourth, the stamping die processing method can be used

When manufacturing the mold, people can also use some mathematical models to describe the mold, and then use the stamping process to process and manufacture the mold. When this method is used, the precision of the manufactured mold can be higher. , the structure of each part is more perfect, and the strength of the mold can be relatively strong. By stamping the mold in an all-round way, the manufactured mold can more meet the needs of people.

There are many different mold processing methods, and people can choose different methods according to their needs for molds.

What matters should be paid attention to in the process of mold processing?

1. Precautions for precision mold processing

1. The process is concise and detailed, and the processing content is expressed numerically as much as possible.

2. For the key and difficult points of processing, the process should be particularly emphasized.

3. Combination processing is required, and the process is clearly expressed.4. When inserts need to be processed separately, pay attention to the process requirements of processing accuracy.

5. After combined processing, the insert parts that need to be processed separately shall be the benchmark requirements for separate processing of process installation during combined processing.

6. Springs are the most easily damaged in mold processing, so choose mold springs with long fatigue life.

7. High machining accuracy requirements: a pair of molds is generally composed of concave molds, punches and mold bases, and some may also be multi-piece assembled modules. Therefore, the combination of the upper and lower molds, the combination of the insert and the cavity, and the splicing between the modules all require high machining accuracy. The dimensional accuracy of precision molds often reaches μm level.

8. Complex shape and surface: For some products such as car covers, aircraft parts, toys, and household appliances, the shape of the surface is composed of a variety of curved surfaces, so the mold cavity surface is very complex. Some surfaces must be processed mathematically.

9. Small batches: The production of molds is not mass production, and in many cases only one batch is produced.

10. There are many processes: various processes such as milling, boring, drilling, reaming and tapping are always used in mold processing.

11. The use of repeated production molds has a lifespan: when the use of a pair of molds exceeds its lifespan, a new mold must be replaced, so the production of molds is often repetitive.

12. In the production of profiling molds, there are sometimes neither drawings nor data, and profiling should be performed according to the actual objects. This requires high imitation precision and no deformation.

13. Excellent mold material, high hardness The main material of the mold is mostly made of high-quality alloy steel, especially the long-life mold, which is often made of ledeburite steel such as Crl2 and CrWMn.

The above are seven aspects that need to be paid attention to in the process of precision mold processing, so that we can produce high-quality molds, and at the same time, we must meet the processing requirements as much as possible in the selection of machine tools, such as the function of the CNC system should be strong, the machine tool precision should be high, The rigidity is better, the thermal stability is better, and it has the function of profiling.

How to choose precision metal mold materials?

1. Meet the requirements of working conditions, such as wear resistance, alternating heat and cold, corrosion resistance, high temperature performance and toughness of materials. Generally, the higher the hardness of the mold parts, the better the wear resistance. In order to prevent the mold from breaking suddenly, the flexibility of the mold needs to be increased. During repeated heating and cooling, the mold deforms and changes the dimensions of the product to such an extent that the function of the mold is no longer effective.

2. Meet the process performance requirements. In order to ensure the quality after deep processing and finishing, and reduce the production cost, the most suitable materials should be selected in the production process to meet the technological requirements. Finally, to meet the needs of the economy, while meeting the service performance requirements, try to save costs as much as possible, and try not to use imported materials when domestic materials can be used.

The above is the editor of Zhejiang Baifudu Electromechanical to introduce the methods and methods of selecting precision metal mold materials, so everyone can use a lot in selection and use.

How much do you know about the disassembly and assembly process of progressive die and composite die?

1. Assembling molds in stamping parts processing plant

Put the mold handle into the upper mold seat for use.

Insert the punch into the fixing plate, and insert the punch loaded into the fixing plate into the female die to check whether the assembly is correct and whether the gap is uniform.

1. Assemble the die

Place the die on the lower die holder and tighten the screws, but do not tighten them too tightly.

Insert the cylindrical pin of the female die and tighten the fastening screws.

Put the guide plate on the die and tighten the screws but not too tight.

Install the cylindrical pin and tighten the set screw, and install the stopper pin.

2. Assemble the upper mold

Place the lower die on the workbench according to the working position, and place a parallel spacer on the edge of the hole above the die.

Put the punch with the fixed plate, the backing plate in sequence according to the mark and close the upper die seat.

Tighten the upper die set screws, but do not overtighten them.

Open the upper die, drive the cylindrical pin from the fixing plate to the upper die base, tighten the fastening screws, and install the stripper plate.

The mold is closed, and the entire mold-loading process is over.

Under what circumstances do you need to increase or decrease the blanking gap value when processing stamping parts?

In the process of stamping parts, under what circumstances should the blanking gap value be appropriately increased or decreased? The following Zhejiang Baifudu Electromechanical editor will take you to understand!

Under the same conditions, according to different quality requirements of parts and the production practice of stamping parts, the pressure gap can be appropriately increased compared with the blanking gap.

When punching punching parts (generally, the hole diameter is smaller than the material thickness), the punch is easy to break, and the gap should be large; but at this time, effective measures should be taken to prevent the waste from rising.

The gap of the cemented carbide punching die should be about 30% larger than that of the steel die. When the wall of the convex and concave die of the composite film is thin, in order to prevent expansion and cracking, according to different product quality requirements, the gap of the punching die should be enlarged. With the increase of the silicon content in the medium, the gap increases correspondingly, and the enlarged gap is determined by experiments.

When the elastic pressing device is used for stamping parts, the gap can be larger. According to the actual application of different elastic pressing devices, when measuring the increased gap and high-speed stamping, the mold is easy to heat up, and the gap should be increased. If the number of trips per minute exceeds 200, the gap should be increased by about 10%. When EDM the edge of the die, the effect of the metamorphic layer should be considered in the gap. When heating and punching, the gap should be reduced, and the amount of gap reduction should be measured according to the actual situation. When the concave die is an inclined-wall cutting edge, the clearance should be smaller than that of the straight-wall cutting edge. For holes that need to be tapped, the clearance should be smaller, and the amount of clearance reduction is determined by the actual situation.

How long is the service life of auto parts?

As we all know, everything has a lifespan, and so do cars. As a kind of high-end consumer goods, many parts of the car are aging year by year since the date of use, which affects the overall service life of the car. Just like people, the parts of the car, like the various organs of the human body, require long-term maintenance and maintenance. So, how long is the service life of each part of the car? Below, the editor of Zhejiang Balford Electromechanical will take you to find out!

1. Engine

As the “heart” of a car, the engine plays an important role. Generally speaking, the engine life of a car is about 10 to 15 years. Under the premise of paying attention to daily maintenance, the car engine is not easy to be damaged and scrapped. Therefore, drivers should pay attention to maintaining good driving habits when driving at ordinary times to avoid abnormal operation of the engine. With the continuous advancement of science and technology, technology and materials are more refined and practical than before, and the service life of the engine has been extended. If the owner maintains the car every day, it will not be a problem for a long time.

2. Brake pads

In addition to handbrake braking, most car braking systems rely on foot brakes, and the brake pads include front and rear brake pads. The wear and tear of brake pads is closely related to normal car braking. If the brake pads are damaged or abnormal, their working state will directly affect the normal driving of the driver. Since the front part of the car generally weighs more than the rear part, the force acts to move forward during emergency braking, so the loss of the front brake pads is generally greater than that of the rear brake pads. Under normal circumstances, the mileage of the front brake pads is about 40,000 kilometers, and the rear brake pads are about 80,000 kilometers, forming a significant difference.

3. Seat belt

Seat belts are the direct "life rope" for passengers, and it is the most commonly used and most overlooked auto accessory. The average lifespan of a car seat belt is not high, about three years. With time and frequent use, its protective effect will become weaker and weaker, especially after the service life. With the passage of time, the seat belt cannot firmly grasp the occupants in the car, and there will be problems such as falling off, slipping, or even the lock is not firm. It cannot protect personal safety at a critical moment, affecting normal safe travel, and the consequences are serious.

4. Airbags

Like the seat belt mentioned above, the car airbag is a protective measure for the safety of the occupants in the car. They can protect us in critical moments of imminent danger. Seat belts control our body to fly out of the car from strong impact, and airbags can reduce the impact of impact on the body, both play an absolutely important role in protection. The service life of the airbag is generally about 10 years, but it is set up to prevent sudden danger, so it cannot be used in most cases.

In daily life, some vehicles cannot work smoothly due to their long service life and the airbags exceed their service life, and cannot handle emergency situations, causing serious losses. Most car owners are reminded not to forget to check the airbags regularly. Now the automotive market has also developed vehicles with multiple airbag configurations in response to this problem, which has won a lot of praise. Friends who have the intention to buy a car but have not yet bought a car also suggest paying more attention to the number of airbags when choosing a new car to improve travel safety.

The above four are actually directly related parts of the life of the car and the people in the car. Their presence ensures the safety of life and can play a rescue role at a critical moment. They need to be taken seriously in our daily lives, with frequent inspections and maintenance. As the old saying goes “the body is the capital of the revolution”, the car also has life, and the parts are in good condition, so that the car can be “healthy”!

How to process precision mechanical parts to meet the precision requirements?

Enterprise personnel engaged in precision machining know that in order to process a reasonable precision hardware, in addition to purchasing precision processing equipment, precision testing instruments are also essential, including three-dimensional, altimeter, hardness tester, micrometer, etc.

Three-dimensional measuring instrument: It is mainly an instrument for measuring precision mechanical parts by taking three-dimensional points. The three-dimensional is also commonly known as the three-dimensional coordinate. The reason is that the measured workpiece is placed in the three-dimensional measurement space, and the coordinate position of each measuring point on the measured object can be obtained. The measurement personnel can calculate the spatial coordinate value of these points. The geometric size, shape and position of the measured object.

The three-dimensional measurement principle is stated above, so which positions can it be used for? It can measure the size of spherical shape, cylindrical shape, conical shape, etc., and can also measure the curve. After software analysis, the size is digitized, displayed in numbers, and then the computer is used for geometric processing, which can be beneficial to better. Control the precision of machining precision mechanical parts.

Altimeter: An instrument used to measure the height of a spatial point relative to the ground. It can measure the height, depth, groove width, inner and outer diameter, hole center distance, shaft center distance, flatness, verticality, etc. of precision mechanical parts. When measuring, the height gauge and the scribing claw should be matched reasonably so that the line drawn on the workpiece is parallel to the platform, and the height gauge should be matched with the lever dial indicator, which can reduce the measurement error.

Hardness tester: Literally, it is a test instrument for measuring the hardness of a material, indicating the ability of a material to resist the pressing of a hard object into its surface. High hardness also indicates good wear resistance.

Finally, the precision machining manufacturer Shilihe Electromechanical Equipment Co., Ltd. reminds you: the three-dimensional, altimeter, these precision instruments have certain requirements for the ambient temperature and humidity, the best working environment: temperature (20±2) ℃, The humidity is 55%-65%, the purpose is to ensure the accuracy of the data.

Why do you need to spray the protective punching mesh?

The principle of punching molding spray technology is that when the plastic powder is charged by a high-voltage electrostatic device, and under the action of an electric field, the paint is sprayed on the surface of the punching mesh, and the powder will be uniformly adsorbed on the surface of the punching mesh to form a powdery coating.

The powder coating is leveled and solidified after being baked at high temperature, and the plastic particles will melt into a dense final protective coating with various effects; it is firmly attached to the surface of the perforated mesh.

Electrostatic powder spraying is used for punching forming mesh spraying, and powder spraying uses electrostatic generators to make plastic powder charged with electricity. Adsorbed on the surface of the iron plate, baked at 180°C to 220°C, and the powder is melted and attached to the metal surface.

The punching and forming mesh is sprayed with plastic, which has no pollution to the environment and no harm to the human body. The characteristics of spray plastic are bright appearance, higher strength and mechanical strength, and higher corrosion resistance and wear resistance. The colors of spraying are white, blue, green, silver, yellow, etc.

How to adjust the production of precision metal stamping parts?

1. The adjustment method is: first turn the material thickness adjustment disk clockwise, and pull the material belt with one hand. If the material tape can be pulled out, it needs to be slowly turned counterclockwise until the material cannot be pulled out, then turn the two small grids counterclockwise, and then tighten the screw. If the material cannot be pulled, but the clockwise or counterclockwise rotation of the material thickness adjustment dial is relatively loose, use your fingers to slowly and gently turn clockwise, but do not use force. Turn the two small grids counterclockwise until they can’t turn, and then tighten the screws. The same goes for the adjustment of the retaining clips.
2. After adjusting the material thickness of the moving splint, the flywheel of the punch press needs to be rotated 90 degrees clockwise. During this period, it is necessary to check whether the moving splint is in a clamped state. Adjust the material thickness of the retaining clip by 90 degrees. First turn on the main switch for clamping and loosening the feeding clip, place 1.5T material at the material thickness adjustment plate of the moving clip, hold up the moving clip material block without clamping the material, then pass the material through the fixed clip, and then clamp the feeding clip Tighten the main switch and turn it off, and then adjust the thickness of the fixed clip material according to the method of adjusting the thickness of the moving clip material.

3. After the distance is adjusted, turn on the main switch for clamping and releasing the feeding clip, remove the material placed on the material thickness adjustment plate of the moving clip, and move the flywheel of the punch press away from the upper mold stripping plate to guide the needle into the lower mold to float. When the pin hole is 2/3, adjust the feeding machine relaxation time.

4. When the straight section of the guide needle is about to leave the material belt when the punch is shaken through 180°, it is necessary to check whether the fixing clip is clamped at this time.

Why do automotive metal stamping parts cause tearing?

Why do automotive metal stampings cause tearing? The quality of stamped products will lay a solid foundation for the appearance and performance of the vehicle. Therefore, the quality assurance of stamping parts has always been a problem that automobile manufacturers attach great importance to. In this article, the editor of Zhejiang Baifudu Electromechanical shares the reasons for the tearing of automotive metal stamping parts.

The stamping process of common tearing and skewing of metal stamping parts is: blanking punching – punching incision – flanging forming – incision – flanging. There are many forms of tearing and skewing of the intermediate protective bracket during the forming process. The tearing parts are mainly distributed in the hole shape of the part, the junction of the R arc and the wall neck at the corner of the side wall, etc. Different, the proportion of each fracture site is different. The tear can be a one-time forming tear or a tear caused by a fatigue crack, i.e. invisible crack development.Analysis of the reasons, according to the actual situation on site, by checking the tearing position, fracture shape and crushing degree of the parts, it is believed that the tearing and skewing behavior of the parts is mainly reflected in the flanging forming process, and the reasons for this process phenomenon are as follows:

The molding process parameters were not implemented correctly. In the forming process of the part, the process requires that the die, the pressing material core and the parts of the two must be closely attached together, and the forming is realized by the plastic deformation of the pressing plate when the machine tool slides down. However, due to the unstable quality of the pressed parts, it means that the pressure of the machine tool is in a state of unbalanced pressing during the production process. The main reason is that the processing technicians did not adjust the machine tool pressure in time according to the requirements of the process regulations at this stage, or did not communicate with each other about the stability of the machine tool pressure during the handover process. Every shift changes, resulting in poor and unstable parts quality.

The common design defects of flanging forming molds for left/right parts with one mold and two cavities, in addition to flanging, also have shape forming content, and the finished parts are particularly complex, the bending surface is narrow, and the forming requirements of the concave mold core are consistent with the forming surface, resulting in The mold structure has a large forming stroke and a small pressing area. In the initial mold design, the designer only considered the small feature of the pressing surface, while ignoring the guiding sliding of the pressing core forming

to make.

What should be paid attention to in the production process of stamping parts?

n the production and processing of stamping parts, there are many problems that need to be paid attention to. In this article, the editor of Zhejiang Baifudu Electromechanical summarizes the six points that should be paid attention to in the production of stamping parts. Let’s take a look together!

1. Regularly check the punch turntable and the die mounting base of the stamping parts to ensure the coaxial accuracy of the upper and lower turntables.

2. Before installation and use of metal stamping parts, strict inspection should be performed to remove dirt, and carefully check whether the guide sleeve and die lubrication of deep drawing parts are good.

3. In order to ensure the service life of the stamping parts, the spring of the mold should be replaced regularly to prevent the fatigue damage of the spring from affecting the use of the stamping parts.

4. When the mold is installed, the stamping personnel should use soft metal to manufacture operating tools to prevent damage to the stamping parts caused by knocking and crushing during the installation process.

5. When the punch and die edges of the stamping parts are worn, they should be stopped in time and sharpened in time, otherwise the wear degree of the die edges will be rapidly expanded, the die wear will be accelerated, and the quality of the stamping parts and the life of the die will be reduced.

6. According to the die installation procedure, install the convex and concave die on the turntable to ensure that the direction of the convex and concave deep drawing stamping parts is consistent, especially the stamping parts with directional requirements should be carefully installed to prevent wrong installation and flipping.

Well, the above is about “six points to pay attention to in stamping parts processing”, I hope the above content can help you.