Preheating Copper Transmission Assemblies
Objective A manufacturer of transmission assemblies needed to preheat copper assemblies and contacted Ambrell to confirm the viability of their...
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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.
Check out our shrink fitting applications page to read dozens of shrink fitting application notes.
Typically, with shrink fitting you heat a part to roughly 300 to 500 ˚F (150 to 300 ˚C), which is enough to allow the part to expand enough to enable insertion without changing the metallurgical structure. There are a number of advantages to shrink fitting with induction heating including:
THE LAB at Ambrell has worked on numerous induction shrink fitting applications. Additionally, they offer complimentary applications testing.
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Induction heating is a process that uses electromagnetic fields to heat electrically conductive materials. It has been used in numerous industries...