Inductive spin hardening of gears
Easy integration into production flows has made the inductive spin hardening of gears increasingly popular in recent years. Dr. Hansjürg Stiele of EFD Induction explains the basics behind the method. More about inductive spin hardening of gears
Induction hardening of crankshafts—how to meet even the toughest specifications
When it comes to crankshafts, engine component manufacturers are caught between the proverbial rock and a hard place. On one hand, car-, truck- and ship-makers are relentless in their pursuit of lower costs. On the other, performance requirements are becoming ever more stringent. Today’s crankshafts must be strong and stiff enough to withstand the extreme loads generated by modern engines. At the same time, your customers are keen to reduce crankshaft weight, size and vibration—but without sacrificing resistance to wear and fatigue. So how can component manufacturers best meet these dual demands of lower costs and higher performance specifications? More about induction hardening of crankshafts
Induction heating streamlines production processes
EFD Induction is best known in the automotive business for its hardening and tempering solutions. These are used to treat a wide range of steering, driveline and transmission components, as well as crankshafts, camshafts, gears, drive shafts, output shafts, torsion bars, rocker arms, CV joints, tulips and valves. More about how induction heating streamlines production processes
Optimizing the performance of vehicle components
The elongation potential model simplifies the explanation of residual stress creation during surface hardening. It is widely accepted that residual stress can have a significant impact on the fatigue strength of hardened components. Hardening methods such as carburizing and surface induction hardening are known to normally produce beneficial compressive residual stress at the components surface. As our understanding of this complex area improves, it is becoming clearer that process conditions can have a major influence on the resulting residual stress. More about the elongation potential model
New hardening techniques
Achieving shorter manufacturing lead times is one of many advantages of using EFD’s induction-based hardening solutions. More and more companies are opting for induction-based hardening solutions – and there are four key reasons that make induction hardening such an attractive choice for OEMs and suppliers. More about new hardening techniques
New nomographs for induction surface hardening of steel
New nomographs for induction surface hardening of steel showing the relations between surface power density, frequency, heating time, maximum surface temperature, and austenitisation depth have been calculated. Coupled electromagnetic and transient thermal 1D (ELTA) and 2D (Flux2D) simulations with nonlinear material properties have been used. A relative workpiece dimension factor is introduced to take into account the influence of the workpiece size. Correction factors for heating time and surface power density are derived to combine the results for single-shot and scanning. More about new nomographs