Hardening English

7/29/2019 Hardening English

1/6

Induction HardeningThe more productive hardening process


2/6

1. High throughput

Induction hardening is ideal or integrating into pro-

duction lines. Once installed, you can exploit the equip-

ments high throughput, accurate controllability and

reproducibility even or workpieces with complex

geometries. And i components need tempering, we

oer dierent solutions such as induction or urnace

tempering.

2. Shorter leadtimes

The in-line integration made possible by induction

hardening not only boosts output it slashes lead-

times. Components no longer need be sent away to

hardening shops or separate hardening areas. Trans-

portation times and costs are reduced. Administration

is streamlined.

3. Minimal environmental impact

Induction heating is a clean, fameless, no-contact

technology. And since it precisely delivers heat only

when and where its needed, induction hardening is ex-

tremely energy-ecient particularly when compared

to wasteul methods such as urnace carburizing. Also,

induction hardening typically uses a polymer emulsion;

thus avoiding the use o environmentally unriendly

oil baths. These eatures are not only good news or

the environment, they also contribute to a saer, health-

ier and more productive workplace.

4. Complete control

Induction hardening treats each workpiece individually.

This means each and every workpiece is hardened to

very precise specications. Nothing is let to chance.

With EFD Inductions PLC/CNC control systems youdetermine the heating pattern, heating time, through-

put speed and quenching process or each hardened

component. Parameters or each component can be

supervised and stored on your server via a network

connection.

Double hardening or double productivity. The quenching

phase inside a single cabinet hardening machine with

twin tailstocks and centers.

Induction hardening.What makes it so eective?More and more companies are opting or induction-based hardening solutions. Here are

our key reasons that make induction hardening such an attractive choice.


3/6

Why choose EFD Induction?It might be our ty-plus years experience in the industrial induction business with

our vast application knowledge. Or perhaps our global network o actories, workshops

and representatives. It could be our range o pre- and ater-sale services. Or that we

are the worlds largest induction hardening company, with customers that include the

most prestigious names in the automotive, aviation and metals industries. Perhaps its

all o the above. But whatever your hardening needs, there is no shortage o reasons

or contacting EFD Induction.

An EFD Induction vertical hardening machine in action.

The chuck connection behind the workpiece lets you use

the same machine or either high or medium requency

hardening.

Inductor or surace hardening o tripods. The inductor

head is equipped with magnetic fux controllers, main

quench and screen quenches.

Proven solutions

EFD Induction hardening systems can be ound at

some o the worlds most demanding and quality- and

cost-conscious companies. Many o our hardening

customers appreciate our integrated approach the

act that we develop, test, install and maintain complete

hardening solutions.

The people behind the process

Like any other industrial process, induction hardening is

only as ecient as its human operators. Thats why EFD

Induction provides ull and regular training programs.

We get your people up to speed, and make sure they

have the skills and knowledge to make the most o their

EFD Induction solution.

Making it right before making it for real

At our labs and R&D centers we design, validate and

optimize hardening solutions. Using simulation sot-

ware we can explore various scenarios to nd the best

possible answers. Then we translate them into unc-

tioning solutions.

Meeting new demands

The ever-increasing demand or lighter vehicles and

lower emissions is accelerating the need or innovative

hardening solutions. At EFD Induction we have pioneered

some major technical advances to make induction

hardening more ecient and fexible. State-o-the-art

control systems, and our patented Multi Frequency

Concept are just two examples.


4/6

Hardeningan introduction.

Hardening uses heat and rapid cooling (quenching)to increase the hardness, strength and/or durability o

steel. Heating steel or iron above their upper critical

temperatures modies the crystal structure o the

metal to a orm called Austenite. With this atomic

arrangement the carbon can then reely migrate to a

new location. When hardening, the aim is to quickly

quench the Austenite, thus trapping the carbon

atoms in their new positions in the crystalline struc-

ture. The transormed structure, called Martensite,is extremely hard. In addition, hardening creates im-

portant internal residual stresses that can be either

benecial or disadvantageous. Depending on require-

ments, tempering can be carried out ater the induction

hardening process.

With induction hardening, only the material in theheating zone is heated. Theres no need to treat the

whole mass o the component, thus saving energy. The

hardening result depends upon a complex interaction

o process parameters such as coil and quench design,

material analysis, component geometry, heating re-

quency and power and quenching cycles. At EFD

Induction we have all the expertise required in electro-

magnetism, power electronics, metallurgy and induction

hardening process setup.

At EFD Induction youll fnd experienced metallurgists,

engineers and quality control experts. In act, youll fnd

all the competence needed to ensure you get the most

reliable, most cost-eective hardening solution possible.

Perect results or challenging workpieces. Our range o

hardening machines, together with customized coils and

patented multi-requency technology, can handle the

trickiest gear hardening tasks.


5/6

Slewing ring without sot zone

Hardening o big rings is not done with single shothardening because the required power would be ex-

tremely high. However, traditional scanning hardening

results in a sot zone in the start/stop area. But with

EFD Inductions innovative and patented solution, three

independent coils work together to create a seamless

induction-hardened ring.

Specialized crankshat hardening

Car crankshats, truck crankshats, marine crankshats

EFD Induction systems are used worldwide to harden

every imaginable type o crankshat in a wide range

o production volumes. Many o the worlds leading

car and truck makers use our patented coil design to

ensure the consistent high quality and productivity

essential in their industry.

High throughput horizontal hardening

Our centerless horizontal hardening systems combine

exceptionally high throughput rates with high repro-

ducibility. Ideal or mass producing plain shats, EFDInduction centerless systems eature control sotware

with a reaction time o only 1/1000 s.

Multi Frequency hardening

EFD Inductions patented Multi Frequency Concept

(MFC) ensures simultaneous delivery o two dierent

requency ranges to the same induction coil. The result

is a system that always allows an optimized heat dis-

tribution in the workpiece. The exact mix o high- and

medium-requency power delivered by MFC makes it

ideal or the contour hardening o complex geometries.

Innovative induction.

Vertical hardening o shats and fanges

Hardening a shat is relatively straightorward. But what

about hardening shats and shat fanges in one ast

operation? Our universal vertical hardening systems are

a proven method or hardening axel fanges. We also

oer vertical indexing table machines that can be robot

loaded or high production volumes.


6/6

Complete hardening solutions.EFD Induction has been developing induction-heating

solutions or more than 50 years. Today, were the

worlds largest induction hardening equipment maker,

with manuacturing plants, R&D centers and sales

companies around the world. Our strength is complete,

tailored systems. We usually start in the lab, with

materials analysis and computerized simulation o

various solutions. We also look at coil design, and

determine which quenching, loading/unloading and

control systems best suit your needs. And o course, we

dont consider our job done until your systems and

your operators are up and running 100%.

Hardline is our complete range o heat treatment

systems rom vertical, horizontal, rotary table and

centerless systems to customized, one-o solutions.

In act, custom-engineered solutions account or more

than hal o all the hardening systems we deliver. Major

components in our systems are EFD Induction Sinac

Universal Heat Generators. Sinac is the markets widest

range o generators, oering an unrivalled spectrum

o requencies. And o course, we also oer tempering

options, either as stand-alone options, or ully inte-

grated into the equipment.

Designing, making and installing equipment is only

the rst phase in a hardening solution. Thats why we

oer comprehensive maintenance, repair and operator

training services. Many o our hardening customers also

benet rom our induction coil support program. This

ensures optimal perormance during the lietime o the

coil, and minimal downtime during coil replacements.

EFD-

200979

-001/0

8

ENG

Putting the smarter heat to smarter usewww.efd-induction.com

Documents

Hardening English