Performance and Properties of an Additive Manufactured Coil for Inductive Heat Treatment in the MHz Range*

Abstract

In inductive heat treatment, the induction coil design plays an important role in the localization of heat generation. Therefore, the combination of an optimized coil geometry and frequency choice determines the workpiece properties and applicability of close-to-contour hardening for small parts or thin hardened layers. Additive manufacturing of copper alloys in the Selective Laser Melting (SLM) process offers a method to build coils with high design flexibility and precision. Conventional coil manufacturing methods are reaching their limitations due to the conflicting geometry specifications at the applied frequency range. In the present work, a characterization is presented and the performance of an SLM manufactured coil in MHz induction application of small surface hardened wires of steel is examined.

Multi-Material Laser Powder Bed Fusion Additive Manufacturing of Concentrated Wound Stator Teeth

“…The heat treatment process was carried out according to [34]. The coils are solution annealed at 980 • C for 30 minutes in an argon inert gas atmosphere, followed by a cool-down phase at room temperature.…”

Virtual simulation of a mechanical structure with 5DOF for induction hardening using Unity3D

“…But induction hardening is not an easy process to use, because of several parameters which need to be configured, one of these being the induction swipe speed. While other researches focus on different alloys to be hardened [1] or on the preheating process [2] before doing the induction hardening, other test the effect of high frequency induction on different applications [3][4][5]. Porpandiselvi (et.…”