Forging method and application

Casting forming technology (net forming) refers to the parts casting forming layer, only a little processing or no processing on the part of the forming technology. Fine casting forming technology is a tense part of the manufacturing technology of our ancestors, and it is also a common parts manufacturing technology used in automobile, mining, energy, construction, aviation, aerospace, weapons and other industries. Close casting skills not only thrift materials, energy, eliminate processing procedures and set up equipment, and significantly improve productivity and product quality, low cost of delivery, so as to improve the market competitiveness of products.
When limiting the wax mold, choose the pressure mold with high surface finish of the cavity, so that the external finish of the investment mold is relatively high. In addition, the inner surface of the cavity, which is in direct contact with the molten metal, is made by hanging a very fine refractory paint on the investment mold. Therefore, the surface finish of investment castings is higher than that of common forging parts, and the surface roughness is generally between Ra3.2~6.3μm, and it is better to be below Ra1.6. Hot shell casting is selected for molten die forging, and the filling ability is strong, which can produce thin-wall castings and slim skirt patterns. The wall thickness of the castings has been able to achieve less than 2 mm.
The forging department's specialization, scale and intensification level is not high, the operation and management mode is extensive, and the technical level is slowly improved, which restricts the development of the industry. Some forgings with high technical content, good quality and cost-effective, which are urgently needed for complete sets of large-scale equipment, still rely on imports, which restricts the development of Chinese equipment manufacturing industry and the improvement of technical level. In recent years, according to the industrial policy and market demand of the country to vigorously develop the equipment manufacturing industry, the forging industry in our country has carried out industrial structure adjustment, optimized the overall structure of the industry and product structure, realized the upgrading of products and technologies, raised the overall level of the industry, gradually raised the level of domestic production, and shortened the gap with the advanced level of foreign countries. With the rapid development of the equipment manufacturing industry in our country, the demand for high stability, high load and high technology content of high-speed heavy duty gear increases increasingly, which makes the demand for high-speed heavy duty gear forging exceeds supply.
The method of investment fine forging is proud of the selection of sensitive material, it can forge a variety of alloy messy castings, especially the forging of heat-resistant steel, high-temperature alloy and other special material castings. For example, the blade of a jet engine, its streamlined profile and cooling with the inner cavity, with machining technology simply cannot be constructed. The production of fine forging technology with investment die can not only achieve mass production. The consistency of castings is ensured, and the stress aggregation caused by the residual blade after machining is avoided.

this is open die forging produced by tongxin precision forging company