Induction hardening
EFD Induction hardening solutions are used by many of the world’s leading car manufacturers and their suppliers.What is induction hardening?
Induction hardening uses induced heat and rapid cooling (quenching) to increase the hardness and durability of steel. Induction is a no-contact process that quickly produces intense, localized and controllable heat. With induction, only the part to be hardened is heated. Optimizing process parameters such as heating cycles, frequencies and coil and quench design result in the best possible outcomes.
What are the benefits?
Induction hardening boosts throughput. It is an extremely fast and repeatable process that integrates easily into production lines. It is clean, safe and typically has a small footprint. Workpieces are usually treated individually. This ensures that each separate workpiece is hardened to its own precise specifications. The optimized process parameters for each workpiece can be stored on your servers. Since only the part of the component to be hardened is heated, induction hardening is extremely energy-efficient.
Where is it used?
Induction is used to harden numerous components. For example: gears, crankshafts, camshafts, drive shafts, output shafts, torsion bars, rocker arms, CV joints, tulips, valves, rock drills, slewing rings, inner and outer races.
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What makes it so effective? More and more companies are opting for induction-based hardening solutions.
There are many reasons why induction heating is the preferred method for hardening camshafts.
EFD Induction crankshaft hardening systems are a proven way to meet stringent specifications, while at the same time minimizing costs.
Seamless hardening. Why induction heating is the smarter choice. Seamless induction hardening is the proven cost-saving alternative to thermo-chemical processes.
How induction heating will reduce distortion and costs when hardening small gears
An integrated induction hardening and tempering solution let you easily produce premium grade chain—a product that commands premium prices in international markets.
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EFD Induction’s patented simultaneous multi-frequency hardening. The process achieves true contour hardening of small gears in well under a second.
EFD Induction is the world’s largest induction hardening equipment maker with close to 70 years experience.
A HardLine Centerless Pusher induction hardens steel bars.
High throughput and consistent heating outcomes are essential when heat treating bars and shafts.
Customized coil for induction hardening of camshafts.
We design, make and maintain customized induction coils for camshaft hardening. These formed coils deliver precise heat patterns and penetration depths for perfect hardening results.
A double station EFD Induction vertical hardening machine hardening camshafts.
There are many reasons why induction heating is the preferred method for hardening camshafts.
Our induction camshaft hardening solutions are used by many of the leading names in the truck, bus, excavator and earth-moving equipment industries. Our systems are also widely used to harden marine camshafts.
Car crankshafts, truck crankshafts, marine crankshafts — EFD Induction systems are used worldwide to harden every imaginable type of crankshaft in a wide range of production volumes.
An EFD Induction robot-type crankshaft hardening system in action. All our systems feature mechanical and control innovations that minimize Total Indicated Run-out.
Double hardening for double productivity. The quenching phase inside a single cabinet hardening machine with twin tailstocks and centers.
Our centerless horizontal hardening systems combine exceptionally high throughput rates with high reproducibility.
Seamless induction hardening of large rings and gears.
Gear tooth hardening. Advanced coil design and process control software ensure short cycle times and precise repeatability.
EFD Induction gear hardening systems are divided into three categories: gap-by-gap systems, tooth-by-tooth systems and single-shot (spinning) systems.
HardLine heat treatment solutions for hardening of large rings and gears
EFD Induction offers hardening solutions for virtually any dimension of raceways, balltracks and gears.
A programmable quenching cycle at work.
Induction hardening of slewing ring without soft zone
Induction is the cost-cutting alternative to furnace case hardening of small- and medium-sized gears.
Quenching of a small gear that has been heated by the simultaneous multi-frequency method.
A small gear t has been heated with a single frequency.
Induction hardening of steering rack.
EFD Induction universal vertical hardening systems are a proven method for hardening axel flanges. We also offer vertical indexing table machines that can be robot loaded for high production volumes.
An EFD Induction vertical hardening machine in action. The chuck connection behind the workpiece lets you use the same machine for either high or medium frequency hardening.
Chain heat treatment. An integrated induction hardening and tempering solution let you easily produce premium grade chain
A two-lined EFD Induction chain heat treatment solution. Our unique coil design means we can considerably reduce the height of the lines.
An optical heat sensor measures chain temperature. The sensor is just one of many quality assurance features available for an EFD Induction chain treatment solution.
An EFD Induction engineer gives hands-on training at the start-up of a new chain heat treatment solution.
