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Due to different stamping processes and working conditions, there are many reasons for the die bursting. The following is a comprehensive analysis of the reasons for the bursting of the die in terms of the design, manufacture and use of the die, and find out the corresponding improvement measures. 1. The mold material is poor and easy to be broken in subsequent processing The service life of dies made of different materials is often different. For this reason, two basic requirements are put forward for the materials of the working parts of the stamping die: ① The service performance of…

The so-called investment casting process is simply to use fusible materials to make a fusible model, Several layers of special fire-resistant coating "paint" are coated on it. After drying and hardening to form a whole mold shell, the mold is melted off from the mold shell with steam or hot water, then the mold shell is placed in the sand box, and the dry sand molding is filled around it. Finally, the mold is put into the baking furnace and baked at high temperature (if high-strength mold shell is used, the demoulded mold shell can be directly baked without molding)…

V-method casting originated in Japan, and got a good development in the 1980s. Seven or eight second-hand production lines have been introduced into China. Today, there are still 64 production lines in Japan, large or small, engaged in V-method casting. The materials include cast steel, cast iron, cast aluminum and cast copper. The casting types are mainly hydraulic components, military products, precision castings and colored artworks. V method has good surface finish, high dimensional accuracy, low production cost, energy conservation and environmental protection, but not all of these advantages are reflected in the same casting at the same time, so…

The sheet metal industry is one of the most important application markets of laser processing. The huge potential market in China also provides a broad space for large-scale application of laser processing machine tools in the sheet metal industry. With the intensification of competition, the profit space of each stage of the sheet metal industry chain is being compressed, and the space for price reduction is decreasing. The competition in China's sheet metal market will turn into the competition of high-quality and high-tech products. In order to comply with the development trend of the international market, the sheet metal processing…

Sheet metal processing refers to the processing of metal sheets. The general processes include cutting, blanking, bending, forming, welding, riveting, etc. Sheet metal processing is an inevitable process of sheet metal product forming, so it is also a technology that sheet metal technicians must master. Common sheet metal products include chimney, iron barrel, oil tank, pipe, funnel, etc. Sheet metal processing personnel need to know some geometric knowledge. Sheet metal processing process The sheet metal processing process varies according to the structure of different sheet metal parts, roughly as follows: 1. Blanking is to cut the material into the required…

1. Material cutting: refers to the process of obtaining rectangular workpiece from materials through plate shearing machine. 2. Blanking: refers to the process of workpiece cutting by LASER or blanking by CNC punch. 3. Blanking: refers to the technological process of obtaining the product shape by using a die on an ordinary punch or other equipment. 4. Punching: refers to the process in which the workpiece is processed by an ordinary punch and die. 5. Bending: refers to the technological process in which the workpiece is formed by the bending machine. 6. Forming: refers to the process of using a…

Causes and Solutions of Injection Molding Defects of TPU Products During the injection molding of thermoplastic polyurethane (TPU), the dried and preheated TPU granules are transported from the hopper of the injection molding machine to the heated barrel. When they are in the molten state, they are injected into the closed mold with relatively low temperature through the propelling action of the screw (or plunger) and the nozzle at the front end of the barrel to fill the mold cavity, and are cooled and solidified under pressure. After demoulding, the same TPU product as the mold cavity is obtained. […

Detailed calculation method: 1) First of all, you can ask the other party to provide a preliminary process arrangement for key or complex parts, detailed to each process and the time consumption of each process 2) The processing cost can be calculated according to the hourly cost of equipment required for each process. You can also ask the supplier for specific equipment costs, for example, Ordinary vertical heating is between ￥ 60~80 per hour (tax included). Milling machines, ordinary cars and other ordinary equipment are generally ￥ 30... 3) The price is based on the proportion of packaging and transportation,…

Technological measures to improve machining accuracy Direct error reduction method: direct error reduction is a basic method widely used in production. After finding out the main factors that cause machining errors, various technological measures can be taken to directly eliminate their effects in whole or in part. Error compensation method: It is to artificially create a new original error to offset the original error inherent in the original process system. Thus, the machining error is reduced and the machining accuracy is improved. Error transfer method: in essence, it transfers the geometric error, stress deformation and thermal deformation of the process…