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The Distinctions Between Surface and Induction Hardening

Sep. 10, 2021

We have actually developed two methods for hardening work surfaces in automation: surface hardening as well as induction solidifying. Induction heating devices maker CHAOCHANG shares their distinctions as well as particular benefits.


When comparing both methods of hardening steel work surfaces, the very first significant difference is the component handling. Surface hardening enables the simultaneous therapy of a multitude of components, while induction hardening concentrates on a solitary part. With induction hardening, parts are hardened one part at once. For surface area hardening, "batch-by-batch" would be a much better description.

While surface solidifying counts on component logistics to move components between the production line as well as hardening, induction setting can be integrated straight into the assembly line with an appropriate solidifying maker and become part of the cycle.

The Technological Distinctions Between Surface Hardening and Induction Hardening

Surface Hardening Information

Surface solidifying is done in sets. Just like induction hardening, the objective is to harden the outer layer of the work surface.

When it comes to solidifying, the work surface is set by carburizing. Solidifying takes place after the application of carbon. The infiltration of carbon is vital to the solidity and also depth firmness residential properties of the component. Setting, or solidity and deepness of hardening, is specified by the depth of carbonization, acceptability, and also hardenability of the steel along with quenching. The even more carbon in the location of the workpiece, the a lot more effective the solidifying of that location will certainly be.

After setting, the work surface is hardened to restore several of its plasticity. The sides have the ability to withstand mechanical lots while providing the component enough flexibility to deflect external pressures without damage.

Induction hardening information

Each component is independently solidified making use of induction hardening technology. Each part is warmth dealt with, solidified and also annealed individually. Check our induction annealing machine here.

Along with being integrated right into the production line, the great advantage of induction hardening is the exact control and reproducibility of the solidifying results. For this reason, the entire solidifying procedure, from the inductor and the applied energy and regularity to the quenching and also annealing, is especially adapted to the workpiece concerned. This creates excellent solidifying results even for workpieces with complex geometries.

Which approach is better?

Which hardening procedure appropriates for an application depends upon a variety of elements. Both approaches, surface solidifying and also induction solidifying, have their benefits and also downsides.

Nonetheless, for mass production of tool or high volume parts, induction solidifying deals a variety of benefits.

With the ideal hardening machine, induction hardening can be completely integrated into the production line cycle and automated. Especially with induction hardening, the outcomes are repeatable, which contributes to consistently top quality in manufacturing.

Please contact us here to get the details you want, and we can give you proper advice on which machine to choose.

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Baoding Chaochang Electromechanical Co., Ltd.