Advantages of Induction Hardening and Tempering in Metals21 March 2016
Hardening takes place in this controlled environment, as does residual stress relief and other practices that increase the workability of the component. The induction hardening and tempering process is a member of this elite heat treatment family, an innovative method of using state-of-the-art technology to localize contact-free alterations in the microcrystalline structure of a specific metal. Let’s take a closer look at the advantages of this disciplined heat treatment procedure.
Localized Material Optimization
Induction hardening and tempering uses high-frequency electrical currents and scalable electromagnetic fields to achieve precise control of heat patterns, meaning the active thermal stage can treat individual sections of a part to create a precise hardening profile.
Faster than traditional tempering, the equipment switches to a low-frequency electrical induction circuit to improve the hardness-to-toughness relationship of the product. Ductility and machinability is delivered in minutes instead of hours, making the overall job far more productive when it’s used as part of a manufacturing cycle.
The Benefits of Contact-Free Processing
Electrical induction technology utilizes electromagnetic fields to “induce” a thermal event, a selective high-temperature spike that is controlled by electronic circuitry. The contactless nature of the technique requires kilowatts of electrical energy, resulting in two contact-free methods. First, static (single-shot) hardening holds the metal piece in place. The electrical coils are located around the part and triggered to treat individual sections, thus hardening them to create an exact hardening profile. The transverse model turns this technique on its head by progressively passing the component through a series of charged coils. The latter technique is favoured when elongated metal parts required hardening. These include but are not limited to shafts, steel pins, drive linkages, and axles.
Creates Detailed Temperature Curves
Every advantage highlighted thus far covers control and narrow definition targeting, for these factors mean everything when induction hardening and tempering is incorporated as a lead section of a production line. Temperature profiles bring all of the above benefits together. The induction hardening stage is open to a precision control model, a performance setup that ties with computerized systems to apply rigorously tested hardening curves and to reinforce this mechanically accurate heat treatment mechanism with an equally efficient tempering solution, one that leverages the properties of electronically derived electromagnetic fields.
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