-
Phone
Tel.:+86 351 2780925
Cell.:+8615135135413
-
Address
ROOM 504, KEHUI BUILDING, 233 CHANGZHI ROAD, TAIYUAN, SHANXI, CHINA 030006
-
E-mail
-
06/18
2021
What Are The Requirements For The Thickness Of The Material in The Processing Of Stamping Parts
Stamping parts are used in a wide range of industries, including automotive, medical, electronics, household appliances and other industries. The selection of stamping materials is very important. Stamping factories need to strictly require the thickness of the material, because once the thickness of the material changes greatly, the use of the same mold and gap for production will affect the quality and accuracy of the product, and the mold will be damaged in severe cases. Even in the production of large stamping parts, production accidents occur.1) In the punching process, the positive deviation of the stamping material thickness is too large, or the negative deviation is too large, which may cause burrs. Materials with too much negative deviation will increase springback and affect dimensional accuracy. Materials with too large positive deviation will increase the punching force and punching work, which may damage the punching equipment. Uneven material thickness will also produce unilateral burrs on the stamped parts.2) During the bending process, materials with large negative deviations have large springbacks, resulting in inaccurate shapes and sizes of stamping parts, and easily cause deflection and distortion. If the positive deviation of the material thickness is too large, it will cause curved surface extrusion, affect the surface quality of the stamping parts, and increase the bending force and bending work, which may damage the equipment. The uneven thickness will also lead to inaccurate shapes and dimensions of the stamped parts.3) In the deep drawing process, if the negative deviation of the material thickness is too large, the shape will be uneven due to springback, and the height of the stamping part will be insufficient, and the opening and bottom of the stamping part will be small. At the same time, The pressure will decrease. In addition, the relative increase in the gap between the male mold and the female mold causes the material to wrinkle during the stretching process, which increases the difficulty of the flow of the metal material, thereby increasing the stretching force, and causing the stamping to break during stretching.
-
06/18
2021
The Working Principle Of Stamping Parts Processing
Stamping is a forming method in which a punch and die apply external force to raw materials such as plates, strips, and tubes to plastically deform or separate them to obtain the desired shape and size of the workpiece. Stamping parts are widely used and easy to find in life. What is the processing principle of stamping parts?Stamping dies are equipment used for pressure treatment of materials. Its working principle is usually under the action of the mold, punching between the upper and lower molds through the opening and closing of the upper and lower molds, punching and stretching the raw materials to form stamping parts.According to the working principle of the press, it can be divided into mechanical press and hydraulic press.The mechanical press completes the stamping process through the movement of the sliding block driven by the motor, while the hydraulic press drives the hydraulic cylinder to reciprocate through the hydraulic principle to complete the stamping process.The mechanical press has fast reciprocating speed, fast speed and high efficiency, but the force generated is very small. It is usually used in small stamping equipment or stamping and shearing processes. The hydraulic press can produce a large force, but the speed is relatively slow. Usually used for stretching and forming production, but also for blanking and cutting of large parts.
-
06/18
2021
What Are The Chemical Properties Of Raw Materials For Stamping Parts
With the development of society, people's requirements are getting higher and higher, and stamping parts manufacturers need to consider many factors when producing stamping parts. In many cases, it is necessary to understand the chemical properties of the raw materials used in the production of metal stamping parts.The chemical properties of metal materials refer to properties that can only be achieved when chemical reactions occur, including oxidation resistance, corrosion resistance and chemical stability.1. Chemical propertiesThe chemical properties of metal materials refer to the ability of metal materials to resist chemical corrosion of various corrosive media at room temperature or high temperature. It mainly includes corrosion resistance and oxidation resistance.Second, chemical corrosionThis is the result of the direct chemical interaction between the metal and the surrounding medium. It includes metal corrosion in gas corrosion and non-electrolytic chemical corrosion. Its characteristic is: the corrosion process does not generate electric current, and the corrosion products are deposited on the metal surface.Three, electrochemical corrosion corrosionCorrosion caused by the action of metals and electrolyte solutions (such as acids, alkalis, salts, etc.) is called electrochemical corrosion. It is characterized by the generation of electric current during the corrosion process. The corrosion product (rust) does not cover the anode metal surface, but keeps a certain distance from the anode metal.Fourth, general corrosionThis corrosion is evenly distributed on the inner and outer surfaces of the metal, so the cross-section is continuously reduced, and then the stressed part is destroyed.Five, intergranular corrosionThis kind of corrosion occurs inside the metal along the edges of the crystal grains, usually does not cause any changes in the shape of the metal, and often leads to sudden damage to equipment or machinery.Six, anti-oxidation performanceThe ability of metal materials to resist oxidation at room temperature or high temperature. The oxidation process of metals is actually a form of chemical corrosion. It can directly use the size of metal surface weight loss after corrosion within a certain period of time, that is, the rate of metal weight loss.
-
06/17
2021
How To Deal With The Stamping Die After The End Of Production
Stamping dies are very important in the production of precision stamping parts. The shape and size of stamping parts are realized by stamping dies. For metal stamping factories, stamping dies need to be inspected and maintained after use, and if problems are found, they can be corrected in time to prevent production accidents. What are the specific steps for inspection and maintenance of stamping dies after use, let us look at them below.1. After using the stamping die, you need to remove the die from the punch according to the operating steps, and must not disassemble it randomly, so as not to damage the die; 2. After the mold is disassembled, it needs to be wiped clean with a special cloth, and degreasing and preventing rust; 3. The inspection and maintenance of the stamping die after use mainly include: cleaning the installation surface of the upper and lower templates, wiping the surface of the mold cavity, cleaning the waste in the mold cavity, oiling the guide slide and working surface, and checking whether the mold cavity surface is damaged. . Check whether the guide post and guide sleeve are loose, check whether the pressing material, the return structure and the knife edge are accurate and intact, check whether the fasteners are loose, fix the loose parts, check whether the visible parts are broken, etc. 4. After all inspections are completed, the stamping die can be placed in the die frame with the permission of the production manager.
-
06/16
2021
How To Realize The Automated Production Of Stamping Parts
The automatic production of stamping parts has the advantages of high production efficiency, short production cycle, saving labor costs, and high quality stamping parts. The automated production of precision stamping parts not only improves the production efficiency, but also improves the quality of the stamping parts and reduces the labor intensity of the workers. Now, many stamping processing manufacturers have gradually realized automated production, and have obtained huge benefits from it. So, what should we do to increase the degree of automation in the production of stamping parts?1. Stamping processing manufacturers should introduce automated processing equipment, promote the application of CNC stamping equipment, stamping flexible processing systems, multi-station high-speed automatic stamping machines, robots or manipulators for feeding and reclaiming, mechanization and automated assembly, etc.;2. The application of single machine on-line automation. The single machine line configuration is 5 to 6 presses, equipped with unstacking, loading and unloading manipulators; shuttle turning device and palletizing equipment, with good punching quality, and the production efficiency can reach 6-9 times per minute;3. The processing of stamping parts can be automated and continuous stamping production using large multi-station presses. The large multi-station press consists of a destacker, a large press and a workpiece conveying system, and the production efficiency can reach 16-25 times/min;4. Give full play to the production capacity of the equipment, the number of strokes of the equipment, the utilization rate of the pressure and the workbench area to improve the production efficiency. Use automatic or semi-automatic auxiliary equipment, these equipment will increase the number of parts in and out, thereby increasing the utilization rate of the trip
-
06/15
2021
Steps Of Stamping Die Design
Metal stamping parts are all metal products made by stamping through stamping dies and punching machines. The quality of stamping parts is closely related to stamping dies. Mold design is particularly important. Mold manufacturing capability is also one of the company's important strengths. Before production, the stamping processing plant needs to design the stamping die first.1. The first is to find raw materials for mold design;2. View stamping product drawings and process flow, view product drawings and process based on the original data, analyze the stamping processability of the product, check the formulation of the process process and whether the sketches of each process are reasonable. If the stamping process is found to be poor or the established process is not reasonable, it needs to be modified. Only in this way can we better combine product design, process preparation, mold design, and mold manufacturing;3. Perform relevant process calculations, and perform relevant process calculations for each process according to the specified work content in the stamping process card;4. Draw the assembly drawing of the stamping die and the assembly drawing of other die parts;5. Check the mold drawing. After designing the mold drawing, it needs to be checked. This is an essential step in the design of stamping parts.
-
06/14
2021
Three Elements Of Precision Stamping Parts Processing
Precision stamping parts are strip-shaped or plate-shaped materials. Under the force of stamping equipment, they are molded by stamping dies to form workpieces of desired shape and size. Stamping parts are widely used, ranging from household equipment to aerospace, and metal stamping parts are inseparable. There are three main elements in the processing of stamping parts, which are raw materials, molds and equipment.In the processing of stamping parts, the material is required to have higher plasticity and toughness, lower yield ratio and aging sensitivity; generally, the elongation of carbon steel σ≥16%, the yield ratio σs/σb≤70%, Low-alloy high-strength steel σ≥14%, σs/σb≤80%, otherwise, the stamping performance will be relatively poor;Die is an important equipment for stamping parts processing. The size and accuracy of the mold determine the size and accuracy of the stamping parts. The surface quality of stamping parts, dimensional tolerances, production efficiency and the economic benefits of stamping parts processing manufacturers are closely related to the mold structure and design;Stamping processing equipment mainly includes mechanical presses and hydraulic presses. When producing a large number of stamping parts, high-speed presses or multi-station automatic presses should be selected as much as possible. In small batch production, especially in the production of large and thick plate stamping parts, most of them use hydraulic presses.
-
06/13
2021
How To Maintain The Mold in The Stamping Parts Processing Plant
If a metal stamping processing plant wants to extend the service life of the die, it needs to maintain the stamping die regularly. Thorough repair and maintenance of the mold can ensure the production efficiency and quality of future metal stamping products. So, how should the stamping factory maintain the mold?1. Clean the mold cavity, oil and waste on the mold surface, and spray anti-rust oil after cleaning;2. Clean the grease on the guide post, guide sleeve, guide plate, blanking ring and guide rail, and add fresh and clean lubricant;3. Check the condition of the fastening and positioning components, replace the damaged components, and then tighten them if there are loose parts;4. Check the drawings, whether the forming and pressing surfaces are worn, and then repair the worn parts by welding, grinding, polishing and other treatments;5. Check the pressing and unloading parts, and repair and replace damaged parts;6. Check the guiding device and the inclined wedge device to repair and replace worn and broken parts;7. Check the wear status of the punch and cutting edge, repair and replace the worn area;8. Check the template, whether the mold is worn or deformed, whether the parts are worn or deformed, for repair and replacement;9. Check the gap between the molds and the wear of the ridgeline, if there is wear, maintenance is required.
