Keywords: Linear friction welding, solid-state welding machine, aerospace welding, dissimilar metal joining
Linear Friction Welding Machines (LFW Machines) are high-precision solid-state welding systems designed for joining similar and dissimilar metals without melting. The process uses controlled linear oscillation, frictional heat, and axial pressure to create a high-strength, defect-free joint.
LFW technology enables manufacturers to achieve reliable welds while reducing material waste and post-processing time.
Linear Friction Welding is a solid-state joining process similar to rotary friction welding, in which materials are forged using frictional heat through the controlled, relative movement of two components under high contact load. Instead of rotating one work piece, the relative motion of the moving work piece is generated by a linear motion or oscillation-typically in a sine wave. The frequency and amplitude of oscillation are the energy inputs for Linear Friction Welding. The axial load (forge force) is applied perpendicular to the axis of oscillation.
| Capacity | |
|---|---|
| Maximum welding area | 250 mm² ( Steel 800 n/mm²) |
| Specimen clamping | Manual |
| Specimen Length max | 100 mm |
| Specimen width max | 60 mm |
| Part fixture height | 900 to 1000 mm |
| Reciprocating Slide Head | |
| Spindle power | 15kw spindle servo motor |
| Amplitude | 2 to 4 mm |
| Frequency | 16 to 40Hz |
| Reciprocating Motion | Crank drive mechanism |
| Slide | LM guide ways |
| Axis slide | |
| Slide Travel | 300 mm |
| Axis Force Max | 60kn |
| Axis Drive | Servo with gear box |
| Slide | LM guide ways |
| Auto centralized Lubrication | |
| Controller | |
| Force and position mode controller Customized 15” touch screen for program parameter both force and position input | |
| Date acquisition software | |
| High speed data acquisition Input and output data like spindle rpm, axis velocity, axis force and slide frequency Against time stored and retrieved in both excel and Graph format | |
| Service Requirements | |
| Machine dimensions L X B X H in mm | 3500 x 1500 x 1500 |
| Total power | 25 KVA /440V/+-10v |