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Research and development of new die steel materials Mr. Ukamura: DRM was developed by Japan's Datong special steel in recent years. In order to achieve a high hardness and high toughness base high-speed steel, it can reduce the coarse carbides to the limit, increase the service life and reduce the mold cost. The reason why it is called base high-speed steel is that it is different from ordinary high-speed steel in that after heat treatment, crystalline carbide (primary carbide) and precipitated carbide (secondary carbide) still exist and cannot be dissolved into the matrix, while DRM base high-speed steel can be…

As China's economy continues to grow at a high speed, the domestic mold manufacturing industry is growing faster than GDP. This has also provided a huge market for the development of domestic die steel, driving the rapid improvement of the domestic die steel production, variety, specification and quality level. As the matrix of die manufacturing, the performance of die steel has a direct impact on a series of factors such as the service life and production cost of the die, and has been paid more and more attention by die manufacturers. Research and Development of New Cold Working Die Steel…

FAQ of sheet metal bending machine and bending die Those who are familiar with sheet metal processing engineering know that bending is the most difficult and technical project in sheet metal processing engineering. (1) What is a sheet metal bend? Sheet metal bending is the process of turning a flat sheet metal into a solid through a pressure device and a special mold. Due to different materials, thicknesses, lengths and widths of plates and different shapes and angles to be formed, there are bending machines with different tonnage and size of pressure equipment, which are equipped with upper and lower…

Common cutting processes include water cutting, EDM, gas fuel cutting, plasma cutting, die cutting, sawing, wire cutting, laser cutting, etc. Comparison of common cutting processes: Cutting process | Slot deformation precision Graph change speed usage Laser cutting | Very small, very high, very easy, high, low Gas fuel cutting | very serious low easy low Plasma cutting | larger, larger, lower, easier, higher, lower Die stamping | small, large, low and difficult (large quantity) Sawing | Large, small, low, difficult, slow, low Wire cutting | small, small, high, easy, slow, high Water cutting | Large high easy high high EDM…

When we use carbon steel stamping elbow, we should pay attention to the connection of some production steps. 1. Chrome stainless steel stamping elbow has certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. It is usually used for power plant, chemical industry, petroleum and other equipment and materials. The weldability of chrome stainless steel stamping elbow is poor, so attention should be paid to the welding process, the premise of heat treatment and the selection of appropriate welding electrodes. 2. Chrome nickel stainless steel stamping elbow has good corrosion resistance and oxidation resistance, and is…

1、 Part process analysis Since this part is a tool for balancing parts, the runout of all surfaces is required to be no greater than 0.02. Therefore, two aspects should be guaranteed in the process: 1. Machining accuracy. 2. Prevent machining deformation. The following two aspects are analyzed and discussed: ① Considering the high processing requirements, the turning process can be divided into three steps. The first step is rough machining, with 0.5~1mm left on one side. The second step is finishing after heat treatment. ② For other surfaces, the inner hole shall be considered as the benchmark for finishing.…

Magnesium, rare earth and calcium can spheroidize graphite in cast iron. As a spheroidizing agent in practical application, magnesium is in the first place in terms of their respective comprehensive evaluation. The casting small knitting machine learned that under the condition of taking magnesium as the main nodulizing element, with appropriate rare earth, better nodulizing effect can be obtained. 1. Desulfurization and deoxidation Magnesium, rare earth and calcium have strong desulfurization and deoxidization effects in molten iron. As far as the free energy of elements reacting with sulfur and oxygen to generate sulfide and oxide is concerned, the desulfurization and…

The differential case is a mature product. The cast casting material is QT600-3. It is molded with damp film sand and has a small amount of coated sand hot core. The comprehensive rejection rate remains below 2%. However, in two consecutive shifts of products, up to 70% of the waste parts caused by air holes suddenly appeared. After dissection, it is found that the air holes are mainly distributed at the edge of the casting, with a diameter of 1~3mm, spherical, and an anatomical depth of about 10mm, Solve the problem. 1. Defect analysis and solutions According to the appearance…

V method and EPC are both the third generation of physical forming casting technology introduced in China at the same time. EPC technology has been promoted and developed rapidly with a good momentum of development. The quality of castings and the level of process and tooling technology have been greatly improved, and the economic scale of enterprises has been expanding and improving. In recent years, due to the limitations of environmental protection, energy consumption and labor force, a large number of foreign castings have been produced in China. At the same time, the domestic demand for castings is also increasing.…

The key support area of the "Made in China 2025" industrial planning is "intelligent manufacturing", which emphasizes the deep integration of the new generation of information technology and manufacturing industry, and accelerates the intelligent manufacturing process of intelligent products such as robots, intelligent factories, and the integration of the Internet and manufacturing industry. Miao Wei, Minister of the Ministry of Industry and Information Technology, said that the Ministry of Industry and Information Technology is currently participating in the research on major projects of intelligent manufacturing organized by the state. It is estimated that it will take three years to select…