Ambrell Induction Heating
Ambrell Induction Heating

About Girish Dahake

The Man Behind the Magic

Dr. Dahake is Ambrell’s Sr. Vice President, Global Applications. He has over 20 years of induction experience and leads a worldwide team of induction application experts at Ambrell’s renowned applications laboratories. He holds multiple industry-related patents, has authored numerous papers and frequently presents at professional conferences on topics such as induction heating, nanoparticle heating and heat staking. Dr. Dahake holds a Ph.D. in Mechanical and Aerospace Engineering from the University of Rochester.  

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Nanoparticle Heating Using Induction in Hyperthermia

Dr. Girish Dahake, Senior VP Global Applications

Induction heating is a convenient and flexible method to deliver high-strength magnetic fields to nanoparticles, resulting in a focused and targeted treatment that is gaining considerable interest in the medical research community.

Hyperthermia (or thermotherapy) is a type of cancer treatment that involves heating of tumor cells within the body. Even as far back as 3000 B.C., Egyptian pundits used heat baths to burn subcutaneous tumors. Doctors observed that high heat, such as that resulting from a fever, killed cancer cells and decreased tumors.

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Heat Staking: Inserting Metal Into Plastic

Dr. Girish Dahake, Senior VP Global Applications

One of the most common uses for induction heating is the heat staking of threaded metal inserts into plastic. Most thermo-plastics are too soft to sufficiently hold a thread, so brass or steel threaded inserts are added.

For heat staking, the insert is preheated with induction and then pressed into a hole in the plastic part. This is accomplished by positioning the induction coil over the hole and then holding the insert in the coil for a short period of time.

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Coil Design and Fabrication

Stan Zinn and S. L. SEMIATIN

Coil design is generally based on experience. This series of articles reviews the fundamental electrical considerations in the design of inductors and describes some of the most common coils in use.


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