Free forging

Free forging is a processing method that uses impact force or pressure to make the metal freely deform in all directions between the upper and lower anvil surfaces without any restriction to obtain the required shape, size and certain mechanical properties of forgings, referred to as free forging.

Free forging uses simple tools and equipment, good versatility, and low cost. Compared with casting blanks, free forging eliminates the defects of shrinkage cavity, shrinkage porosity, pores, etc., so that the blank has higher mechanical properties. The shape of the forging is simple and the operation is flexible. Therefore, it has special significance in the manufacture of heavy machinery and important parts.

Die forging

Die forging refers to a forging method that uses a mold to form a blank on a dedicated die forging equipment to obtain a forging. The forgings produced by this method have precise dimensions, small machining allowances, complex structures and high productivity.

The die forging process has high production efficiency, low labor intensity, precise size, small machining allowance, and can forge forgings with complex shapes; it is suitable for mass production. However, the cost of the mold is high, and special forging equipment is required, which is not suitable for single-piece or small-batch production.

1 Due to the die cavity to guide the flow of metal, the shape of the forging can be more complicated.

2 The forging streamline inside the forging is distributed according to the contour of the forging, thereby improving the mechanical properties and service life of the part.

3 Simple operation, easy to realize mechanization, and high productivity.

Main products:

Seamless Rolled Rings for slewing ring bearings, Turntables, wearing rings, wind turbine slewing rings, wind turbine blade bearings, yaw bearings inner and outer rings, pitch bearings inner and outer rings. 

Seamless Rolled Rings for large non standard flanges, large custom flanges, small wind tower flanges. 

Large diameter customized flanges. 

Ring Gears, Gear Rings, Circle Gears, Solid tyre and wheels, Seamless rolled neck rings. 

Main material: 

A105, A266 Gr1 to Gr4, SA350LF2, A694, C22, S235, S275, S355J0 

42CrMo4, AISI 4140, CK45, 1050, C50, SCM440, S48C, 
S355NL, S355J2G2, S355JR, Q345E, Q345D

Materials:      Steel and stainless steel according to DIN, EN, ISO, ASTM, BS, JCSI.

Weight per piece  0,15 to 3.000 kg.

Dimensions:  Depending on shape and weight.

Quantities:    Medium and larger series.

Machining equipment: All current processing methods, CNC and conventional machining.

Surface treatment:      Hot-dip galvanising, galvanising, Cr6 free coating, glass balls and shot blasting, priming, electro-polishing, Nickel plating, tumbling, burnishing, pickling, passivating, lacquer finishing.

Quality control:     Chemical analysis by spectrometer, mechanical properties for tensile strength, yield stress, notched bar impact testing, ultrasonic testing, magnetic particle flaw inspection, liquid penetrant test, 3-D co-ordinate CNC measuring machine, metallography.

Quality System:    ISO 9001:2015.