Precision Forming Process...
  • Precision Forming Process Technology
  • Precision Forming Equipment
  • Automatic Forging Production Line
  • 1、Hot Precision Forging Technology

    1)HOT,WARM ,AND COLD FORGING TECHNOLOGY

    Including closed, occlusion precision forging forming technology, flow control forming technology, hollow flow split precision forging forming technology, multi-station precision forging forming technology, cold temperature/hot and cold composite precision forging forming technology, mold technology, etc.
    It is suitable for the manufacture of various complex parts in automotive, aerospace, machinery, military and other industries. The accuracy of cold forgings can reach IT7-8 level. It plays an increasingly important role in improving production efficiency, parts quality, manufacturing accuracy, reducing equipment and parts weight, energy saving, material saving and environmental protection.

    2)HOT-COLD COMPOUND PRECISION FORGING TECHNOLOGY

    By Using hot-cold composite precision forging process technology, the forgings can be obtained close to the dimensional accuracy and surface quality of cold forging, and at the same time, the process can be reduced and the forming force can be reduced. Especially for large-size gears, production costs can be reduced and tooth surfaces can be machine-free.

    3)WARM-COLD COMPOUND PRECISION FORGING TECHNOLOGY

    The temperature of warm forging is usually 750°C. Thus, accuracy close to cold forging can be obtained. The yield stress of the material is reduced by about 1/3 compared with cold forging, which significantly reduces the mold stress. It can improve the degree of material deformation and reduce the number of processes and intermediate processing. It can be applied to materials that are difficult to process in cold forging or parts with larger sizes. With the application of multi-station precision forging technology, it can realize the automatic forging production of parts such as automobile constant velocity universal joint bushing parts, large module gears and other parts.


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  • 2、Rotary Forming Process Technology

    1)OLL FORGING PROCESS TECHNOLOGY

    Billet roll forging: As a billet making process before die forging, we provide blanks for forging long shaft forgings.
    Forming roll forging: The main forging process is realized on the roll forging machine or the forgings are made directly on the roll.
    Using the method of combining numerical simulation and realization, the precision forming roll forging process was developed, which increased the material utilization rate by 10%-20%. Forming and billet roll forging technology has been widely used in automobile forgings manufacturing, and has been creating huge economic benefits for enterprises.

    2)CROSS WEDGE ROLLING PROCESS TECHNOLOGY

    Wedge rolling is an advanced forming method for efficient precision forming of stepped shaft forgings and other rod and complex forgings precast blanks. The production efficiency is more than 1.5 times that of other forming methods, the material utilization rate is greatly improved, and the mold life is extended. It has been widely used in automobile manufacturing and tool manufacturing and other fields.

    3)SKEW ROLLING TECHNOLOGY

    Three-roll oblique rolling is the rolling of rolled parts using three conical rolls and spaced 120° apart. The rolls rotate around the rolls, so that their inner surface forms a tapered deformation zone, and because the roll is arranged obliquely, it rotates while causing the roll to produce feed movement and pass through the deformation zone, so that there is no need for bite and guide devices. With its low input and short process, the three-roll oblique rolling technology and equipment is suitable for the manufacture of high-precision tubes and rod parts in small batches, multiple varieties and specifications. The three-roll oblique rolling technology and equipment developed by us have been applied to the aerospace field.

    4)GRINDING TECHNOLOGY

    The swing rolling is to replace the overall deformation of the ordinary forging process with continuous local deformation, and the rolling pressure is only 1/10-1/20 of the ordinary forging process. The swing rolling can make the forging blank deform uniformly, the metal fiber flow is reasonable, the processing is strengthened during the processing pendulum milling, the mechanical strength of the finished parts is improved, and the processing accuracy and surface quality are improved. The cold pendulum rolling process can produce shaft flanges, end gears, bevel gears, differential planets, half-shaft gears, racks, gearbox synchronous ring gears, clutch hubs, starting ratchets, end cams and other products.

    5)SPINNING TECHNOLOGY

    For tubeless steel wheels, we determined the development route of roll-spin composite forming technology for tubeless steel wheels without welds and variable section, and finally successfully applied to production.

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    三辊轧制成形

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    三辊轧制成形

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    旋压成形


  • 3、Light alloy shape control technology

  • 4、Hot extrusion process technology

    1)CLOSED-TYPE EXTRUSION TECHNOLOGY OF AUTOMOBILE AXLE CASING AND OIL DRILL PIPE JOINT

    Our company independently developed the "new process of precision closed extrusion production of truck punching and welding half-shaft casing and oil drill pipe joint", and obtained 1 national invention patent and 2 utility model patents.

    Technical advantages: Adopting advanced closed extrusion molding technology.The process is stable, the product fiber flow is reasonable, the internal and external quality are good, and the processing allowance is small. Without forging flashing, the utilization rate of forging materials can reach more than 96%. The consequences are helping clients to short production processes and reduce investment.

    2)EXTRUSION TECHNOLOGY AND QUALITY CONTROL TECHNOLOGY OF LARGE DIAMETER THICK WALL LONG PIPE

    Through the research on the common technology of extrusion forming of large-diameter thick-walled seamless steel pipes, the manufacturing problems of high-temperature and high-pressure large-diameter thick-walled steel pipes in the third-generation nuclear power plants are solved, and it has become a landmark achievement in the large forging industry. With the application of 36,000 tons of vertical extruder, it provides high-quality large-diameter thick-walled seamless steel pipes for ultra-(super)critical thermal power, third-generation nuclear power generation equipment and other industries.

    3)FLOW CONTROL FORMING TECHNOLOGY(FCF)

    Flow control forming technology is to apply additional resistance to the parts of the material that are easy to flow in the process of metal plastic forming to control the flow velocity and distribution of the material, so as to obtain the required forgings.

    Technical features: it can accurately control the non-uniform plastic flow of metal materials to achieve precision forming of more complex parts; It can effectively avoid the occurrence of defects such as folding and not filling, make the metal streamline line continuous and dense, and improve the mechanical properties of forging products; It can make the surface of forgings more smooth, the dimensional accuracy is higher, and the tolerance can reach IT8-9 level.

  • 5、Free Forging Manufacturing Technology For Large Forgings

    Provided key forging manufacturing process technology for major technical equipment for many fields of national equipment manufacturing basic industries such as iron and steel metallurgy, energy transportation, petrochemical, aerospace, and shipbuilding.

    Main technologies: including large forgings deformation process technology; Heat treatment technology of large forgings, Forming process technology of large stainless steel nuclear power main pipeline,Key manufacturing process of large and complex pipe fittings for nuclear power,Integral low-pressure rotor manufacturing process,Large turbine discs,Simulation of heat treatment process of oversized rotor forgings.

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  • 6、Cold Temperature Forging Process Technology

  • 7、Multi-directional Extrusion Forming Technology

  • 8、Fine Blanking Technology

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  • 9、Super Plastic Molding

    SUPERPLASTIC FORMING TECHNOLOGY
    Our company is one of the earliest units engaged in super plasticity research in China. In the past 40 years, the systematic research on super plastic materials such as Al, Ti, Mg, Zn, Ni, composite materials, inter metallic compounds, steel and other super plastic materials, deformation mechanism, mechanical properties and forming equipment has been carried out. We are committed to expanding the research results of super plastics to the field of rapid press hardening, creating a new way for the manufacture of lightweight products for automobiles. The research results have been widely used in aerospace, aviation, machinery, electronics, textile, chemical, transportation, arts and crafts industries.

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