Induction forging refers to the use of an induction heater to pre-heat metals prior to deformation using a press or hammer. Typically, metals are heated to between 1,100 and 1,200 °C (2,010 and 2,190 °F) to increase their malleability and aid flow in the forging die.
Induction heating is a non-contact process which uses the principle of electromagnetic induction to produce heat in a workpiece. By placing a conductive material into a strong alternating magnetic field, electric current is made to flow in the material, thereby causing Joule heating. In magnetic materials, further heat is generated below the Curie point due to hysteresis losses. The generated current is predominantly in the surface layer, the depth of this layer being dictated by the frequency of the alternating field and the permeability of the material.
Induction brazing is using alternating magnetic field – electromagnetic induction phenomenon, the eddy current effect in the magnetic field heats the workpiece, melting the solder flux, a method for induction brazing by filling the gap with liquid filler metal under the action of the capillary. Compared with other brazing methods, the induction brazing welding machine has the unique characteristics: fast heating speed, ease to achieve local heating, can realize the heat concentration, ease to control temperature, ease to achieve automation operation, these speed, agility, and low-cost characteristics make induction brazing welding machine more suitable for the current social market requirements.
Induction Annealing is a heat treatment process which involves heating of material above its recrystallization temperature. The aim is to reach and maintain a suitable temperature for enough time followed by proper cooling. It is often used in metallurgy and material science to make the treated sample more workable by reducing its hardness and increasing its ductility (ability to undergo a change of form without breaking).
Induction heating provides improved control of the annealing process. Repeatable heating profiles can easily be obtained by precise regulation of the heating power. Since the workpiece is directly heated by the magnetic field, a faster response can be achieved. Moreover, the high overall efficiency of the induction heating process is crucial for such lengthy treatment.
Induction melting is the induction heating of a metal, typically within a crucible until the metal becomes molten using an induction furnace. Once the metal has fully melted, the liquid is then poured into an ingot mold or cast into a component at a foundry, or into smaller precise parts such as dental and jewelry castings.
Induction soldering is a process in which a precise electromagnetic field is used to heat two or more electrically conductive materials to join them with solder material that melts at a temperature below the melting point of the joined electrical parts.
Induction hardening is the process by which metal is heated then rapidly cooled in order to increase the hardness of the material. The use of induction for hardening will allow for greatly increased production rates versus furnace or flame heat treating and can lend itself to fully automated processes. Generally, the larger the depth and diameter of the material being heated, the lower the frequency required.
Susceptor heating by Induction has been extensively applied to processes where the material to be heated is not electrically conductive or not easily heated evenly with induction heating. Both metallic and non-metallic parts may be heated indirectly with the use of a susceptor, heated by induction. Susceptors may be in contact with or separated from the part or material to be heated. When in contact heating is via conduction, when separated heating is by radiation.
Induction bending is an advanced metal bending process, offering optimum precision, efficiency and consistency. It is suitable for a very wide range of applications and completely overcomes the potential limitations of cold bending techniques, such as distortion and wall thinning.