CNC Machining China blog - Precision CNC Machining Solution for Metals

Common sense that you must know when doing sheet metal processingAfter the drawing is received, choose different blanking methods according to the different opening drawings and batches, including laser, CNC punching, shearing, molds, etc., and then make the corresponding opening according to the drawing. Place the worktable next to the CNC and the laser cutting , which is conducive to placing the sheet on the machine for processing and reducing the workload of lifting the board.

In the current production operations, what are the main steps of our more common wonder metal sheet metal processing technology? Perfect, the main steps of wonder metal sheet metal processing include: sheet metal processing drawing design, laser processing or (CNC stamping), bending, welding forming, electrostatic spraying or (liquid paint), and finally packaging and shipping.

Laser processing is one of the promising areas in laser applications. More than 20 laser processing technologies have been developed. Laser cutting pipe processing is an important technology in laser processing. The quality of laser welding is directly related to the intelligence and accuracy of the welding system. A welding processing system must be able to produce welding products. The laser welding system is generally composed of laser, optical system, laser processing machine tool, process parameter detection system, shielding gas transmission system, control detection system and so on. The core of the laser welding system is the laser. Laser welding has the advantages of high precision, high efficiency, high strength, and good timeliness, ensuring quality, output and delivery time. At present, laser welding has become a competitive processing method in the processing industry. It is widely used in machinery, electronics, battery, aviation, instrument and other industries for spot

The utility model has the advantages of tube blank cutting, tube wall cutting, tube wall cutting and other tube cutting shapes. Commonly used are mechanical cutting, punching and advanced laser cutting. For small batches, mechanical cutting methods are mainly used, such as turning, milling, circular saw cutting, and grinding wheel cutting. The main problem is low production efficiency and large environmental pollution. As an advanced processing tool, laser cutting machine is gradually entering the pipe cutting market. The tube laser cutting machine is mainly used for cutting various hollow tubes of non-metal solid materials, such as plastic tubes, PVC tubes, PVB tubes and other industrial and civil materials. This kind of pipe is generally used for home decoration, industry and water conservancy construction. Four advantages of laser cutting pipe processing Laser cutting technology is a technology with high production efficiency and high productivity. The laser pipe cutting machine h

  COMPUTER NUMERICAL CONTROL engraving machine is good at fine machining of small tools, with the ability of milling, grinding, drilling and high-speed tapping. It is widely used in 3C industry, mold industry, medical industry and other fields. This article collects common questions about CNC engraving. image 1 . What is the main difference between COMPUTER NUMERICAL CONTROL engraving and CNC milling ? Both CNC engraving and CNC milling use the principle of milling. The main difference lies in the diameter of the tool used. Among them, the commonly used tool diameter for cnc manufac turings is 6-40 mm, while the device diameter intended for CNC engraving is 0. 2-3 millimeter. 2 . Does CNC milling can only be used to get rough engineering and CNC engraving can only just be utilized pertaining to finishing? Before answering this question, let us first understand the concept of the process. The rough machining process requires a large amount of machining, but the finishing machining a

The Hall effect is the working principle of the Hall  sensor . It is a kind of electromagnetic effect, in which an orthogonal current and magnetic field are applied to the  Semiconductor . The carriers in the  Semiconductor  are subjected to the Lorentz force and deflected. In different directions Gathering, thereby generating an electric field. There is a built-in  voltage , this  voltage  is the Hall voltage, the greater the magnetic field strength, the greater the Hall voltage. Hall  sensor The working principle of the linear Hall sensor, the output of the linear Hall sensor is an electrical signal proportional to the measured magnetic field strength. For example, the linear Hall sensor 3503 has three pins which are positive VS, V out and GND. Among them The positive VS is connected to a power supply of 4.5 to 6V. Power is supplied to the 3503, and the GND is grounded. The shell of the 3503 can induce the magnetic field, and implements the magnetic field strength in the form of volt

   This is a frequently encountered problem, but it is also relatively easy to solve. When it is really not solved by technological means, it can be improved from the design and manufacture of molds, which can generally be solved.

This is a frequently encountered problem, but it is also relatively easy to solve. When it is really not solved by technological means, it can be improved from the design and manufacture of molds, which can generally be solved. 1 . Equipment: (1) The capacity of the injection molding machine is small. When the quality from the product exceeds the actual maximum injection quality of the injection molding machine, it is obvious that the amount of material supplied will not make ends meet. If the top quality of the product is close to the actual injection quality of the shot molding equipment, there is a problem of insufficient plasticization. The heating time of the material in the barrel is usually insufficient. As a result, the appropriate melt cannot be provided to the Cnc Machining mold in time. In this case, the problem can only become solved by replacing the injection molding machine with a large capacity. Some plastics such as nylon (especially synthetic 66) have a narrow melting

The power transmitter is a combination of multiple precision parts and requires careful use and maintenance. Before using a power transmitter, you need to know its principle. What is the principle of a power transmitter? Introduction to the principle and characteristics of power transmitters Principle of power transmitter transmitter The power transmitter is mainly composed of three-phase isolated sampling circuit, A/D converter, single chip microcomputer, DSP device, D/A converter, calibration amplifier and special thick film integrated V/I converter. After the three-phase AC input signal passes through the three-phase isolation sampling circuit, the common ground tracking  voltage  signal of the three-phase current and the three-phase  voltage  signal is formed. Under the control of the single-chip microcomputer, the A/D converter performs multi-point synchronous sampling on it, and the sample is obtained The data is calculated by the DSP device according to the principle of electric

The clamping process is generally divided into three or four stages, generally fast-slow-high pressure; fast clamping, according to the structure of the mold, sees it as a flat plate, or a slider, and different molds are set first The pressure/speed/position during rapid mold clamping, without affecting the efficiency, set the appropriate pressure/speed/position. Pay attention to not only make the mold smooth, but also reflect the principle of rapid mold clamping. Low pressure-slow speed; this Precision Cnc Machining Metal Parts is the most important & in the jog state, set the pressure to 0, slow down the speed, and set the position to 0, because the machine itself has a bottom pressure, although the pressure is 0, cnc parts The mold will still be closed. After the mold is closed, because the position is 0, the high pressure cannot be raised. At this time, the low pressure position is changed to the value displayed on the panel according to the position of the mold base displayed

                                            The effect of plastic viscosity and conditions on viscosity The nature of the friction between macromolecules when the molten plastic flows is called the viscosity of the plastic. The coefficient of this viscosity is called the viscosity, so the viscosity is a reflection of the fluidity of the molten plastic. The greater the viscosity, the stronger the viscosity of the melt. , The worse the fluidity, the more difficult the processing. In industrial applications, comparing the fluidity of a plastic is not by its viscosity value, but by its melt flow index (called MFI): the so-called MFI means that the melt is subjected to a rated pressure at a certain melting temperature. , The weight of the melt that passes through the standard die in a unit time (usually 10 minutes). Expressed in g/10min, such as injection molding grade PP materials, different grades, the value of MFI can vary from 2.5 to 30, and the viscosity of plastics is not Unchanging,

Efficient Chips and the Thermal Cycle Failure Free SLC-package-technology This concept is convincing because it is based on a standardized package outline while also capable of delivering the highest power density, scalability by easy paralleling, low stray inductance, capability to operate with fast switching devices like SiC MOSFETs and having excellent current sharing balance. In combination with the latest 7th generation  IGBT  and Diode efficient chips and the thermal cycle failure free SLC-package-technology, the LV100 module provide the best overall performance. In the 1700V, a current rating of 1200A has been realized which represents an outstanding current density considering the compact package footprint of only 144x100mm². NEXt Genaration IGBT LV100 Internal Layout In high power IGBT modules, multiple chips are connected in a parallel configuration because IGBT chips sizes are limited and usually the rating maximum current is in a range of ~200A for IGBT chips with blocking

Precautions for the appearance of plastic molds   1: The content of the nameplate should be printed with the mold number, mold weight (KG), and mold size (mm). The characters are all marked with 1/8 inch code, and the characters are clear and neatly arranged.   2: The nameplate should be fixed on the mold leg near the rear template and the reference corner (15mm away from both sides), fixed with four rivets, fixed reliably, and not easy to peel off.   3; The cooling water nozzle should use a plastic block to insert the water nozzle, ￠10 tube, the specification can be G1/8″, G1/4″, G3/8″. If there are special requirements in the contract, please follow the contract.   4: The cooling water nozzle should extend out of the aluminum cnc parts surface, and the head of the water nozzle recessed into the outer surface should not exceed 3mm.   5: The diameter of the cooling water nozzle avoidance hole should be ￠25, ￠30, ￠35mm three specifications, the outer edge of the hole has a chamfer, the

                                    Mold meets working conditions 1. Wear resistance When the blank is plastically deformed in the mold cavity, it flows and slides along the surface of the cavity, causing severe friction between the surface of the cavity and the blank, which causes the machining uhmw mold to fail due to wear. Therefore, the wear resistance of the material is one of the most basic and important properties of the mold. Hardness is the main factor affecting wear resistance. In general, the higher the hardness of the mold parts, the smaller the amount of wear and the better the wear resistance. In addition, wear resistance is also related to the type, quantity, shape, size and distribution of carbides in the material. 2. Strength The working conditions of the molds are mostly very bad, and some of them are often subjected to large impact loads, which leads to brittle fracture. In order to prevent the sudden brittle fracture of precision machining china parts during work,