Introduction

Inertia friction welding is an advanced solid-state welding process that is widely recognized for its high quality, efficiency, energy savings, and pollution-free characteristics. It has broad application prospects in fields such as aerospace, automotive, and oil drilling rods, and has received significant attention from industrially advanced nations.

The process of inertia friction welding involves clamping the rotating end of the workpiece in a flywheel. The welding process begins by accelerating the flywheel and the rotating end of the workpiece to a certain speed, after which the flywheel is disengaged from the main motor. Simultaneously, the moving end of the workpiece advances forward. When the workpieces make contact, frictional heat is generated. During this process, the flywheel experiences braking due to the frictional torque, and its speed decreases. When the speeds of the flywheel, the spindle system, and the rotating chuck with the workpiece drop to zero, the temperature distribution at the interface reaches the desired level. Finally, under axial pressure, the welding process is completed. 

The process parameters of inertia friction welding include three main factors: the rotational inertia of the flywheel, the flywheel speed, and the axial pressure. Its main characteristics are constant pressure and variable speed, combining the heating and forging processes of continuous drive friction welding.

  

Specification parameter

Maximum forging force:	60KN
Weld rod diameter:	5-12mm
Rotary fixture :	50-150mm
Spindle speed :	2500-3000rpm
Slide travel :	200mm (diameter)
Moving :	fixture length 50-400KW
Production efficiency (welding time):	4S