Ambrell Induction Heating
Ambrell Induction Heating
heating a steel plate

Shrink Fitting Magnetic Steel Pistons

Oct 3, 2019 11:06:22 AM / by Brett Daly posted in Shrink Fitting, induction shrink fitting

 

A manufacturer of pistons approached THE LAB at Ambrell with a shrink fitting application. They had been using an inexpensive portable induction unit, but found it unreliable for their application. Their application involved heating magnetic steel pistons for shrink fitting onto a chrome shaft. The target temperature was 1,100 °F (593 °C).

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Heating Hammer Bits for Shrink Fitting

Aug 29, 2019 4:21:59 PM / by Brett Daly posted in Shrink Fitting, induction shrink fitting

 

A client in the oil and gas industry came to Ambrell with a shrink fitting application. They had been using a cold method for inserting carbide buttons into hammer bits, but wanted to look to induction heating. They took advantage of THE LAB at Ambrell's complimentary applications testing to determine the feasibility of their shrink fitting application. 

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Shrink Fitting a Magnetic Steel Gear

Jul 24, 2019 2:19:37 PM / by Brett Daly posted in Shrink Fitting, induction shrink fitting

 

A manufacturer of power generation equipment approached THE LAB at Ambrell with a shrink fitting application. They had been shrink fitting a magnetic steel gear with an oven, but that oven took over two hours to heat the gear to 550 °F (288 °C). Their hope was that induction could significantly reduce that time, which would increase their productivity and enable more throughput. They sent in their parts to Ambrell and took advantage of complimentary applications testing. 

 

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Using Induction Heating for Shrink Fitting

Feb 25, 2019 10:38:08 AM / by Brett Daly posted in Induction Heating, Shrink Fitting



Shrink fitting is a process where a size change after assembly, which can be achieved with induction heating, creates an interference fit. By heating or cooling one component prior to assembly and allowing it to return to the ambient temperature after assembly, the thermal expansion creates a joint. In fact, after the assembly cools, it generally cannot be separated without reheating the assembly to reverse the process. 

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