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. Some metal stamping factories without relevant experience may feel at a loss when they first contact. Next, Dongguan Fortuna will analyze some of the chemical properties of the raw materials for metal stamping parts.Metal stamping partsThe 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.2, 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 characteristics are: the corrosion process does not generate electric current, and the corrosion products are deposited on the metal surface.3, 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.4, 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.5, 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 the metal surface weight loss after corrosion within a certain period of time, that is, the rate of metal weight loss.
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, it is necessary for stamping factories to understand. Next, Dongguan Fortuna will give you an introduction.StampingStamping 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 motor-driven slider, 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 larger force, but the speed is relatively slow. Usually used for stretching and forming production, but also for blanking and cutting of large parts.
Stamping dies are the basis for processing stamping parts, and stamping parts need to be moulded to achieve a fixed shape and size. If there is a problem with the stamping die, the entire subsequent production of the stamping processing plant will also be affected. Dongguan Fortuna provides one-stop services for mold design, stamping, and automated assembly. Next, we will analyze some common problems of stamping dies for everyone.Stamping dieOne, the concave-convex mold is brokenIn the entire stamping process, the places that bear greater stamping pressure are the concave and convex molds of the entire mold. Therefore, if the design of the concave-convex mold is improper, it will be easily broken and damaged. The break of the punch is a kind of break of the punch.The main reasons for the fracture of stamping die include:1. Improper selection of materialsThe choice of mold material needs to be determined by combining the materials and dimensions of all processed stamping parts. For example, processing stainless steel stamping parts requires the selection of better mold materials.2. Unqualified mold heat treatmentAfter the heat treatment of the mold, the hardness is too low or too high. It is recommended to determine the appropriate hardness range according to the use situation.3. Unreasonable demoulding designThe gap between the concave mold and the convex mold needs to be within a reasonable range. If the gap is too large, the punched parts will produce burrs, while the gap is too small will cause the die or punch to break.When the concave-convex mold breaks, it is necessary to carefully analyze the cause and solve the problem. Sometimes, you can continue to use the mold after grinding, and in some cases, you need to rework the mold according to the drawings.Two, the mold is deformedWhen the mold is deformed, the shape of the processed stamping part will also be deformed, so that the size of the produced product cannot meet the requirements. The deformation of the stamping die is mainly caused by improper material selection or improper heat treatment. The force of the die during the stamping process can cause deformation. Three, mold wearThe blade wear we often say in the stamping industry is a manifestation of die wear. In the stamping process, the friction between the upper and lower molds and the material will inevitably be worn. When severely worn, the processed stamped parts will produce larger burrs, which will lead to unqualified products. However, mold wear can usually be resolved by grinding.
How to choose the tools of the CNC lathe to process products? Let’s take a brief look, because CNC lathe processing is a high-precision operation, and its processing procedures are adjusted and the number of parts clamping is small, so the CNC tools used are proposed In order to meet higher requirements, I will introduce to you at the bottom. When selecting tools for CNC machine tools, the following issues should be discussed: ① The category, standard and accuracy of CNC tools should be able to meet the requirements of CNC lathe processing. ②High precision. In order to meet the high precision and active tool change requirements of CNC lathe processing, the tool must have high precision. ③High reliability. To ensure that sudden tool damage and potential defects will not occur in CNC machining, which will affect the smooth progress of machining, it is required that the tool and the accessories combined with it must have good reliability and strong suitability. Meticulous hardware processing ④High durability. The tools processed by CNC lathes, whether in roughing or finishing, should have higher durability than those used in ordinary machine tools, so as to reduce the number of exchanges or grinding tools and tool setting, thereby increasing the number of CNC machine tools. Processing efficiency and ensuring processing quality.⑤ Good chip breaking and chip removal functions. In cnc lathe processing, chip breaking and chip removal are not handled manually like ordinary machine tools. Chips are easy to wrap around the tool and workpiece, which will damage the tool and scratch the processed surface of the workpiece, and even hurt people and equipment. , Which affects the processing quality and the safe work of the machine tool, so the tool is required to have better chip breaking and chip removal functions.At Dongguan Fortuna Metals CO.,LTD, we have 42 sets imported Japanese CNC machines that can produce CNC Machined Parts with diameter from 1mm to 32mm. You are welcome to request for quotation.