JIATONG PRECISION SHEET METAL

  Generally, sheet metal parts have obvious advantages in strength, weight and cost, and have better point-to-point performance than traditional parts. Therefore, up to now, sheet metal parts have been gradually applied in China’s high-tech fields such as electronics and communication. At the same time, people have gradually put forward higher requirements for the quality and function of sheet metal parts, The proper optimization of the original sheet metal processing technology has become the focus of sheet metal processing personnel. According to the actual research, this paper believes that the optimization of processing technology should be carried out one by one from the application of four basic cold processing links of sheet metal processing. 1  Blanking    First of all, as far as the blanking link is concerned, generally speaking, blanking refers to the separation of sheet metal materials through the stamping of the die, so as to realize the separation of she...

  1 Water Cooling Block Many techniques can be used to control the welding deformation of special welding workpieces. For example, in thin plate welding, the use of water-cooled blocks can take away the heat of the welded workpiece. The copper pipe is welded to the copper fixture by brazing or tin welding, and the circulating cooling is carried out through the water pipe to reduce the welding deformation. 2 Wedge Block Locating Plate “Locating plate” is an effective technology to control welding deformation during butt welding of steel plate, as shown in the figure. One end of the positioning plate is welded on a plate of the workpiece, and the other end wedges the wedge block into the pressing plate. Multiple positioning plates can even be arranged to maintain the positioning and fixation of the welded steel plate during welding. 3 Thermal Stress Relief Except for special cases, it is not a correct method to eliminate stress by heating. Welding deformation shall be prevented or re...

  Engineers and designers must ensure that the CAD system they purchase is compatible with the current program. If not, they may start from scratch. The initial requirement is to determine the sheet metal compatibility in the CAD setup you plan to purchase. However, no single CAD system can meet all your design needs, which is the fact that all of us must accept. In addition, some of the most advanced CAD systems available today may not be compatible with your current tools. Now there are more available CAD modeling platforms with sheet metal design functions, which can be easily used to develop 3D models. In addition, there are various CAD systems that can convert solid models into sheet metal elements, and then supplement plane patterns from them.    CAD system with manufacturability function design will improve productivity and minimize waste of time. It is strongly recommended to use DFM function in sheet metal product design, because this system can ensure the operab...

  One of the simplest and most cost-effective methods of manufacturing brackets, especially simple brackets such as corner brackets, is sheet metal manufacturing. The bracket is usually composed of two or more planes connected along an edge. The easiest way to make this object is usually to bend a flat object (i.e. a metal plate) at two or more positions: the simplest example is to add a flat rectangle bent at 90 ° to form a straight contour, and turn it into a bracket with an L-shaped contour.     Most scaffolds are functional, and their purpose is to connect and support objects. However, brackets can also be decorative: since brackets are usually visible (e.g. mounted on shelves above the eyes), they may have a decorative and gorgeous feel, ranging from complex machined decorative features to gold plating. Sheet Metal Bracket QUICK LINKS:>>> Sheet Metal Frame  |  Sheet Metal Housing  |  Sheet Metal Chassis  |  Metal Kiosk Enclosure...

In order to ensure the material utilization rate and the minimum number of die changes in bending, the thickness specifications of plates on the same structure shall not exceed three at most. For structures with high strength requirements, the method of pressing reinforcement on thin plates can be adopted; It should be avoided that the unfolding size of parts is equal to the outline size of raw materials: the shape of plates supplied in the market is not square. If the unfolding size is equal to or very close to the outline, there is no allowance for the whole square, and the product size after direct processing has errors, which will affect the installation and use. For non-sprayed plates with decorative surface requirements, the decorative surface and grain direction shall be considered in combination with the plate materials. For any purpose, the plate with decorative surface shall be used and the grain direction shall be required. For non-exposed parts, the processing process shall...

  Sheet metal generally deforms some metal sheets by hand or die stamping to form the desired shape and size, and can further form more complex parts through welding or a small amount of mechanical processing, such as chimneys, iron barrels, oil tanks, ventilation pipes, funnel shapes, etc. commonly used in families, and also such as electrical cabinets, shells of various special equipment, computer cases, automobile shells, etc. are sheet metal parts.     Sheet metal parts have no specific structural requirements, and are generally designed according to product needs. On the premise of meeting product functions, the designed structure should be easy to process, low-cost and beautiful. For example, the door of the electrical cabinet can be external or embedded, which should be selected according to the design needs. The design of the door will be different with different structures. The material thickness of the external door is generally thicker than that of the embedded...

  1. In the principle of convenient installation, the hanging beam is adopted, which is convenient and flexible for installation and movement. 2. The principle of internal shielding is to adopt high-density mesh front and rear to ensure the shielding inside the cabinet. 3. Considering the load-bearing factors, the reinforced fixed tray is attached with reinforcing ribs at the bottom to increase the load-bearing capacity. 4. There are many styles of assembly parts, which can meet the needs of various applications. 5. The structure is simple and convenient for cutting; Of course, it is simplified on the basis of ensuring other performance. In terms of technology, it is mainly surface spraying. 6. The surface of cabinet chassis adopts the method of sandblasting first and then plastic spraying; Ensure that the surface coating of the cabinet is firm and reliable, acid and alkali resistant and corrosion resistant. 7. In the principle of simple and flexible assembly, the assembly frame st...

The sheet metal process and the structural design of sheet metal parts are inseparable. It is necessary to closely combine the sheet metal process, improve the structural design level of sheet metal parts, and design the structural parts with processing technology, so as to reduce the production cost and improve the production efficiency. 1 Design of Bending Edge The shortest bending edge of sheet metal is affected by the V-shaped opening width of the bending lower die and the bending R angle. The limitation of the shortest bending edge should be properly considered in the design. Assuming that the width of the V-shaped opening of the die under bending is 12mm and the bending R angle is 0.5mm, the minimum short side of bending cannot exceed vi2 + R + 0.5 = 7mm. Designers should design according to the existing bending lower die specifications of the factory, so as to avoid many unnecessary molds customized by the factory, which greatly increases the processing and management cost of mo...

  The main ways to realize the   precision machining   of parts are: using high-precision machining machine tools to process high-precision parts; Use error compensation technology to improve the machining accuracy of parts. Mechanical processing mainly includes manual processing and numerical control processing. “Sheet metal is a comprehensive cold working process for sheet metal (usually less than 6mm), including shearing, punching / cutting / compounding, folding, welding, riveting, splicing and forming (such as automobile body) Etc. Its remarkable feature is that the thickness of the same part is consistent. The products processed by the sheet metal process are called   sheet metal parts . The way to distinguish whether a part is a sheet metal part or a machined part on a mechanical drawing is to see whether the thickness of the part is consistent. The thickness of sheet metal parts is consistent, while the thickness of machined parts is inconsistent.   ...